Borrowing Capacity Calculator United States 2025
Find out how much a lender would actually approve you for.
Estimate US mortgage borrowing capacity with income, debts, down payment, DTI, property tax, insurance, HOA fees, and affordability assumptions.
United States Mortgage Borrowing Notes
US mortgage qualification usually focuses on debt-to-income ratio, down payment, credit commitments, property tax, homeowners insurance, HOA dues, and mortgage insurance.
Borrowing power can change sharply once student loans, auto loans, credit cards, property taxes, insurance premiums, and condo or HOA fees are included.
This version uses USD, DTI, down-payment, LTV, and escrow-style language so it reads like a US mortgage qualification check rather than an Australian LTV page.
Use it before comparing lender prequalification, FHA or conventional assumptions, or a mortgage broker scenario.
US setup: this borrowing capacity is tuned for dollar-denominated scenarios, American payroll and tax references, state-by-state cost differences, and the finance terms people see in lender, employer, or IRS-facing documents.
The page keeps US language in place where it is relevant, including IRS, federal withholding, FICA, 401(k), sales tax, miles, APR, down payment, paycheck, state tax, and USD totals.
Treat the answer as a United States estimate; before acting, compare it with provider disclosures, state rules, federal guidance, lender underwriting, payroll settings, or advice from a qualified professional.
Estimates only — lenders apply their own credit policies. Enter your details below for a personalized figure.
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Select the question that matches where you are right now.
Your borrowing capacity is the maximum loan a lender may consider serviceable based on your inputs — not a guaranteed approval, and not automatically a safe budget. Lenders work from your gross monthly income and apply the 28/36 DTI rule: your housing payment (PITI) must stay within about 28% of gross monthly income (front-end), and all monthly debt payments within 36% — with a Qualified Mortgage alternative up to 43%. The maximum loan is the mortgage those payment limits can support at the note rate.
Use it to check whether your target purchase price is realistic. If the result is within 10–20% of what you need, formal pre-approval with a lender or broker will give you a precise figure based on your actual credit file.
Not a formal approval, not a credit assessment, and not the total amount you need to buy. Down payment, closing costs, title fees, and moving costs sit outside this number — closing costs typically run 2–5% on top of the purchase price.
Each lender uses different DTI limits, income documentation rules, FICO overlays, and credit scorecards. Two major lenders assessing the same borrower can produce results that differ by $80,000–$150,000. This calculator uses the standard 28/36 DTI rule as a neutral baseline.
If your result is lower than expected, it's almost always one of four things — not the interest rate. The rate matters far less than most borrowers expect once you account for these committed expenses.
Lenders assume 3% of your total credit limit as a monthly commitment, regardless of what you owe. A $15,000 combined limit adds $450/month to assessed expenses — equivalent to losing roughly $55,000–$65,000 in borrowing power. Closing unused cards before applying is the fastest lever most borrowers have.
Lenders count your monthly student loan payment as a debt obligation in DTI calculations. On a standard 10-year repayment plan with $40,000 in student loans, the monthly payment is approximately $400–$450 — reducing borrowing capacity by roughly $55,000–$70,000. Income-driven repayment (IDR) plans may lower the monthly payment used in DTI calculations.
These are deducted dollar-for-dollar from monthly surplus. A $600/month car loan reduces maximum borrowing by $75,000–$90,000. Paying off short-term debt before applying is often more effective than increasing income by the same dollar amount.
Dependants raise your everyday living costs, which leaves less room under the 36% back-end DTI limit. A couple with two children typically has materially higher monthly outgoings than a childless couple on the same income. Lenders focus on documented debt payments for DTI, but underwriters still consider household size and residual income — particularly for FHA and VA loans, which apply residual-income tests.
Deposit size doesn't change your borrowing capacity calculation — but it determines whether the purchase structure actually works. Many borrowers are deposit-bound rather than affordability-bound. The same loan approval looks completely different at 10% vs 20% deposit.
Borrowing at 80% LTV or below means no Private Mortgage Insurance (PMI). On a $700,000 property, a 20% deposit is $140,000 and you borrow $560,000. No PMI, lower ongoing rate at most lenders, and a stronger negotiating position. Most borrowers target this threshold.
Borrowing above 80% LTV triggers PMI — a one-off premium that protects the lender, not you. On a $700,000 property with a 10% deposit ($70,000), PMI typically adds $10,000–$20,000 to the loan. This increases total cost without increasing your borrowing limit.
Eligible buyers may access FHA loans, allowing purchase with as little as 3.5% down payment with a FICO score of 580+. FHA mortgage insurance premium (MIP) applies for the life of the loan in most cases. FHA loan limits vary by county. Check HUD.gov for current FHA loan limits and eligibility rules in your area.
Income is the most visible driver, but it's the net monthly surplus — what's left after tax, living costs, and existing debt — that determines the ceiling. Two borrowers on identical gross salaries can have borrowing capacities that differ by $100,000 or more.
After federal income tax, FICA, and applying the 28/36 DTI rule at the note rate, this range typically supports $380k–$550k depending on debt profile. Even a modest student loan payment or a single credit card can shift the result by $50k–$80k. This is the most common first-time homebuyer range.
Returns taper as the 43% back-end DTI cap begins to bind. The jump from $100k to $150k income produces a proportionally smaller improvement than most borrowers expect. At this level, down-payment size and card limits typically become the binding constraints rather than raw income.
Adding a second income typically produces a large improvement, but the gain is offset by combined living costs, shared dependants, and combined debt profiles. A couple on $160k combined generally borrows materially more than a single borrower on $80k — but lenders assess both credit profiles fully.
Overtime, bonuses, and commissions are typically shaded to 80% because lenders treat them as less reliable. Rental income is also shaded to 80% (75% at some lenders) to account for vacancy and maintenance. Self-employed borrowers face the most conservative treatment: lenders generally use the lower of the last two years' net taxable income and require two full years of tax returns. Consistent, growing income helps; declining income results in the lower figure being used.
The borrowing formula is national, but what your result means depends entirely on where you want to buy. The same $700,000 approval feels very different in San Francisco versus Indianapolis.
In the San Francisco Bay Area and Manhattan, median home prices in most established neighborhoods exceed $1.2m–$1.5m. A $700k result typically requires a strong deposit to reach those price points. Many first-time buyers focus on outer suburbs, the Inland Empire, or condos in more affordable boroughs. Closing costs in California and New York typically run 2–5% of the purchase price.
Texas and Florida offer significantly more housing inventory at a given borrowing level. A $700k result accesses established homes in most metro areas. Texas has no state income tax, which can improve take-home pay. Florida also has no state income tax. Property taxes in Texas are relatively high — budget 1.5–2.5% of property value annually. Both states have strong FHA and VA loan participation.
Markets like Indianapolis, Columbus, Charlotte, and Nashville offer strong relative value at the $300k–$600k range. A $500k approval accesses most established suburbs in these metros. Closing costs are generally lower than coastal markets, and USDA loans may be available in outlying areas. These regions often have the best affordability-to-income ratios in the country.
If the result is below your target, these are the highest-leverage moves — roughly in order of impact per dollar or effort required.
Closing a $10,000 card limit can add $35,000–$50,000 to your borrowing capacity. Do this at least 3 months before applying so the closure reflects in your credit report. If you need a card, reduce the limit to the minimum you actually use — the effect is nearly identical to closing it.
A $400/month car loan reduces maximum borrowing by roughly $50,000–$65,000. Personal loans, BNPL arrangements, and store credit all have similar effects. If you're within 6–12 payments of clearing a debt, finishing it before applying often produces a better result than keeping the cash as a slightly larger deposit.
Even a modest second income of $40,000–$60,000 typically produces a more significant uplift than most single-income improvements. Combined applications are assessed on both incomes, both debts, and combined household costs — but the net effect is almost always positive unless one applicant has significant debt.
DTI floors, income shading rules, and DTI caps vary significantly between major banks, regional banks, and non-bank lenders. A broker can model your profile across multiple lenders simultaneously. The difference between the best and worst policy fit for a specific situation can exceed $100,000 in approved loan amount.
Borrowing capacity answers one question. These are the ones that usually follow, depending on your stage.
Knowing your maximum loan is useful, but you also need to check whether the monthly repayment is comfortable at different rates. A small rate movement on a large loan is a meaningful monthly dollar change.
Mortgage repayment calculator →Once you have a target property price, model the full upfront costs: closing costs, title insurance, home inspection, and appraisal fees. These often add 2–5% to the total cash required at closing on top of the down payment.
If you're still building your deposit, calculate how long it will take at your current savings rate. Adjusting the target property price or adding a savings boost shows a realistic path to entry.
Savings goal calculator →Making extra principal payments, or paying biweekly instead of monthly, cuts the interest charged over the life of the loan and shortens the term. The savings over 10–20 years can be substantial.
How borrowing capacity is calculated in the United States
Your borrowing capacity — also called borrowing power, affordability, or home loan eligibility — is the maximum loan amount a US lender will approve based on your income, declared expenses, existing debts, and the bank's internal credit policy. The exact figure varies between lenders because each applies different versions of the same methodology, but all federally regulated lenders must follow The CFPB's Qualified Mortgage affordability standards.
Step 1: Gross income assessment
Lenders start with your gross income before tax. Not all income types are counted equally. W-2 salary from a permanent role is assessed at 100%. Overtime, bonuses, and commissions are typically shaded to 80% because they're considered less reliable. Rental income is assessed at 80% to account for vacancy and maintenance. Casual and contract income typically requires 12 months of history and may be assessed at 80%. Self-employed income is assessed at the lower of the last two years' net taxable income — if year one was $80k and year two was $100k, many lenders will use $80k.
Step 2: Gross monthly income and the DTI base
US qualifying ratios are measured against gross monthly income, not net pay. The calculator still estimates federal income tax and FICA (Social Security 6.2% up to the wage base plus Medicare 1.45%) so you can see your take-home position, but the 28/36 DTI test itself uses gross income. For a $95,000 gross salary, gross monthly income is approximately $7,900. Your monthly student loan payment is counted as a debt obligation in the back-end ratio.
Step 3: The 28/36 DTI rule
The Debt-to-Income ratio (DTI) is the ratio of your monthly debt payments to your gross monthly income. US lenders apply the 28/36 rule: front-end DTI (the housing payment — principal, interest, property tax, insurance and any HOA, known as PITI) capped near 28% of gross monthly income, and back-end DTI (all monthly debts including the new mortgage) capped near 36%. The Qualified Mortgage standard allows back-end DTI up to 43%, and FHA loans up to 50% with compensating factors.
Step 4: Existing debt commitments
All existing monthly debt commitments are subtracted from your income. This includes actual loan repayments (car loans, personal loans, investment property mortgages), 3% of your total credit card limits per month regardless of balance, and BNPL commitments. A credit card with a $15,000 limit creates a $450/month assessed commitment — even if the balance is zero and you pay it off each month.
Step 5: Maximum housing payment (PITI)
The 28/36 rule sets two ceilings on your monthly housing payment. The front-end limit is 28% of gross monthly income. The back-end limit is 36% of gross monthly income minus your other monthly debts (student loans, car loans, credit-card minimums, and so on). The lower of the two is your maximum housing payment — the principal, interest, property tax, and insurance (PITI) a lender will let you carry. On $95,000 gross ($7,900/month) with no other debts, the front-end cap is about $2,200/month.
Step 6: Qualifying rate
US lenders generally qualify fixed-rate borrowers at the note rate — there is no mandatory stress buffer the way some other countries impose one. For adjustable-rate mortgages, lenders must qualify at the greater of the fully indexed rate or the note rate plus 2%. This calculator qualifies at the note rate by default; the optional buffer field in Advanced mode lets you stress-test a higher rate if you want to see the effect.
Step 7: Maximum loan calculation
Once the maximum housing payment is known, the portion available for principal and interest (PITI minus the property-tax and insurance escrow) is converted to a loan amount. The maximum loan is the present value of an annuity where the monthly payment equals that P&I figure, the interest rate is the note rate divided by 12, and the term is your chosen loan term in months. At a 6.5% note rate over 30 years, a $2,000/month P&I payment supports a loan of roughly $316,000; over 15 years the same payment supports far less — illustrating why loan term is a meaningful lever.
Step 8: Debt-to-income ratio cap
Under The CFPB's Qualified Mortgage rule, total monthly debt payments (including the proposed mortgage) cannot exceed 43% of gross monthly income. Some lenders apply even stricter overlays. If your gross income is $120,000 ($10,000/month), the 43% DTI cap limits total monthly debt to $4,300 — including the new mortgage payment. FHA loans allow up to 50% DTI with compensating factors. The CFPB monitors lending standards across the industry and can tighten requirements as a consumer protection measure.
US mortgage qualification examples by DTI and PITI
US borrowing capacity is usually built from monthly income, recurring debt, credit score, down payment, loan program, and the full housing payment. The full payment means principal, interest, property taxes, homeowners insurance, mortgage insurance, and HOA dues where applicable.
Conventional loan profile
A conventional borrower with strong credit and a meaningful down payment may qualify at a lower rate and avoid or reduce mortgage insurance. The same income supports less borrowing if property taxes, HOA dues, or homeowners insurance are high.
FHA, VA, and USDA paths
FHA can help borrowers with smaller down payments or lower credit scores, but mortgage insurance changes the monthly payment. VA eligibility can materially change the cash-to-close and mortgage-insurance picture. USDA rules depend on property location and borrower eligibility.
Debt-to-income pressure points
| Monthly item | How lenders treat it | Why it matters |
|---|---|---|
| Auto loan | Included in back-end DTI | Reduces room for PITI dollar-for-dollar |
| Student loan | Program-specific payment treatment | Can affect qualifying even under income-driven plans |
| Credit cards | Minimum payment or policy payment | Balances and utilization can affect both DTI and score |
| Property tax | Escrowed into the housing payment | High-tax counties can lower purchase capacity |
| HOA dues | Added to housing cost | Condos and planned communities may qualify for a smaller loan |
State and county examples
A borrower may qualify for a higher purchase price in a lower-tax county than in a high-tax county with the same income and rate. Insurance can also change the result, especially in areas with elevated wind, flood, wildfire, or replacement-cost risk.
For US planning, test your DTI with realistic property taxes, insurance, HOA dues, mortgage insurance, and monthly debts. A salary multiple alone is not enough to estimate what an underwriter will approve.
How different income types are assessed — W-2, self-employed, rental, casual
W-2 permanent employment
Base salary from a permanent role is the most straightforward income type. Counted at 100% of the gross figure shown on payslips. Most lenders require 2–3 recent payslips and a letter of employment confirming the role is permanent. Probationary periods are sometimes an issue — some lenders require you to have completed probation before applying.
Overtime, bonuses, and commissions
Regular overtime and bonuses that have been consistent for at least 12 months are typically accepted at 80%. If you receive irregular bonuses (one-off annual performance bonuses), some lenders accept 80% of the average over two years. Commission income generally requires 2 years of tax returns to demonstrate consistency. Variable income that has declined between years is assessed at the lower figure.
Self-employed income
This is the most variable and often the most constrained income type. Lenders use the lower of the last two tax years' net taxable income from your tax returns. If you earned $85k in year one and $110k in year two, many lenders will use $85k. Some specialist lenders use the average, which can produce a better result. Bank statement loans for self-employed borrowers require at least 12–24 months of business history and may carry higher rates or require larger down payments.
Rental income
Rental income from existing investment properties is typically counted at 75% of gross rental income. This 25% haircut accounts for vacancy, maintenance, property management fees, and property taxes. Cash-flow shortfalls are taken into account — if your existing investment loan payment exceeds the credited rental income, the shortfall counts as an additional monthly debt in your DTI. Use the rental income field in Detailed mode to include this in your calculation.
Casual and contract income
Casual employees typically need 12 months with the same employer to have income considered, assessed at 80%. Some lenders require 12 months at any employer in the same industry. Fixed-term contracts are generally acceptable if there's evidence of contract renewal history. Zero-hours or irregular casual work is the most difficult to have counted — without consistent history it may not be included at all.
Government benefits and Child Tax Credit
Some government payments are accepted by some lenders. Social Security income (SSI, SSDI, retirement) is accepted by many lenders, typically at 100% of the documented amount. VA disability compensation is also accepted and is non-taxable, which can improve DTI calculations. Child support and alimony payments received may be accepted with 12 months of demonstrated receipts and evidence of at least 3 years of continued payments remaining — child support obligations paid are counted as monthly commitments in full.
Income from multiple employers
Multiple sources of employment income are simply added together, with each source assessed according to its type. A borrower with a $70,000 primary salary and $30,000 from a second casual role might have $70,000 assessed at 100% and $24,000 (80% of $30,000) from the casual income, giving $94,000 in total assessable income.
Side hustle and freelance income
Income from side businesses, freelancing, ride-share driving, delivery work, or any Schedule C activity is treated as self-employed income. Most lenders require at least 2 full years of tax returns showing this income to count it in their assessment. If you have been operating the business for less than 2 years, most major banks will not include this income at all. Some non-QM lenders will accept 12–24 months of bank statements as income documentation, but these typically carry higher rates. If your primary income is W-2 employment, the side income may still be excluded unless it can be demonstrated as consistent and sustainable.
Self-employed less than 2 years
This is one of the most commonly asked questions for newer self-employed borrowers. If your business has been operating for less than 2 years, major lenders typically will not count your self-employment income for affordability purposes — even if you are earning well. Options include: waiting until you have 2 full years of tax returns; applying through a non-QM or specialist lender who accepts 12–24 months of bank statements; applying jointly with a W-2 employed partner whose income alone may support the loan; or seeking a bank statement loan product (which typically requires a 10–20% down payment and carries higher rates).
401(k), HSA, and pre-tax deductions
Pre-tax deductions (including 401(k) contributions, HSA contributions, and health insurance premiums) affect your take-home pay but not how lenders assess your income. Lenders use your gross income before voluntary deductions for DTI calculations — not your reduced take-home pay. This means 401(k) contributions do not reduce your borrowing capacity. Your W-2 Box 1 income (after pre-tax deductions) is used for tax calculations, but lenders typically add back voluntary pre-tax deductions to arrive at gross qualifying income.
Foreign income and overseas employment
Foreign-sourced income (from overseas employers paid in a foreign currency) is typically assessed at 80% of the USD equivalent after currency conversion, to account for exchange rate risk. Some lenders require additional verification such as a letter from the overseas employer, recent payslips in both foreign currency and USD, and evidence of regular transfers to a US bank account. Non-citizen, non-permanent-resident borrowers may face additional LTV restrictions and typically need to work with lenders who offer foreign national mortgage programs. US citizens and permanent residents working overseas with US-sourced W-2 income are generally assessed the same as domestic earners.
US mortgage borrowing by income
US mortgage qualification is usually driven by debt-to-income ratio, credit score, down payment, property taxes, homeowners insurance, HOA dues, mortgage insurance, and the loan program. The same salary can support very different loans in different states or counties.
Entry-level buyers
For households earning around $50,000 to $80,000, front-end and back-end DTI are usually the pressure points. Auto loans, credit cards, student loans, personal loans, and high local property taxes can reduce approval room faster than the base interest rate alone suggests.
Middle income buyers
At roughly $90,000 to $150,000 of household income, the result often depends on down payment strength, credit tier, mortgage insurance, and whether the borrower is using a conventional, FHA, VA, USDA, or jumbo path. HOA dues and escrowed taxes can change the monthly payment meaningfully.
High income borrowers
Higher earners may be limited by jumbo underwriting, reserves, variable compensation, restricted stock, self-employment income documentation, or the size of the property-tax and insurance escrow. Lenders may average bonus or commission income instead of using the latest pay period.
State and county effects
A $750,000 purchase in a low-tax county is not the same affordability case as a $750,000 purchase with high property tax, HOA dues, flood insurance, or expensive homeowners coverage. For US users, local taxes and insurance are part of borrowing capacity, not side notes.
What to test next
Compare a larger down payment, lower DTI, different loan program, longer or shorter term, and realistic escrow amounts. The practical US question is whether the full PITI payment plus HOA and monthly debts fits the lender's rules and your own cash-flow comfort.
What reduces borrowing capacity — student loan, credit cards, loans, dependants
student loan debt and home loan borrowing power
Student loan debt is one of the most commonly overlooked factors affecting borrowing capacity. Lenders count your monthly student loan payment as a recurring debt obligation in DTI calculations. For federal loans on standard repayment plans, the monthly payment is fixed. For income-driven repayment (IDR) plans, lenders may use 0.5–1% of the outstanding balance as the monthly obligation if the actual payment is $0 or very low.
Lenders count your student loan monthly payment as a recurring debt obligation in DTI calculations. On a standard 10-year repayment plan with $40,000 in student loans, the monthly payment is approximately $400–$450. This is added to your total monthly debt load, reducing the room available for a new mortgage payment and decreasing maximum borrowing capacity by approximately $55,000–$70,000 at standard rates.
If you have a small remaining student loan balance (under $15,000–$20,000) and the financial capacity to pay it out, this is worth modelling. Paying out $15,000 in student loan could increase your borrowing capacity by $40,000–$60,000 — a significant return on the paydown. Use the student loan field in Detailed mode to compare scenarios with and without the debt.
Credit cards and borrowing power
Credit card limits have an outsized effect on borrowing capacity relative to their apparent cost. Lenders assume 3% of your total credit card limit as a monthly commitment — not 3% of the balance. This reflects the risk that you could max out the card at any time.
Impact examples: a $10,000 credit limit reduces borrowing capacity by approximately $35,000–$45,000. A $20,000 combined limit reduces capacity by approximately $70,000–$90,000. A $30,000 combined limit (common for people with two or three cards) reduces capacity by approximately $105,000–$135,000. These figures assume a 6.5% note rate over 30 years under the 36% back-end DTI limit.
Actions to take: close cards you don't use, reduce limits on cards you keep, and do this at least 3 months before applying for pre-approval. The closure needs time to reflect in your credit file.
Car loans and personal loans
Monthly repayments on car loans, personal loans, and installment purchase agreements count dollar-for-dollar in your back-end DTI. A $600/month car loan payment effectively removes $600 from the housing payment your income can support — reducing borrowing capacity by approximately $75,000–$90,000 at standard note rates.
If you have a car loan with 12 months remaining and manageable outstanding balance, paying it out before applying is often worthwhile. The increase in borrowing capacity typically exceeds the interest saved by clearing the loan early. Use the existing loans field in Standard mode to model this comparison.
BNPL — Affirm, Klarna, and other services
Buy Now Pay Later services are increasingly captured in lender affordability assessments. BNPL balances may appear on your credit report, and regular BNPL payments in bank statements are treated as recurring commitments. Even small BNPL arrangements that seem inconsequential can show up as multiple credit inquiries and add to your total assessed monthly commitments. Clearing and closing BNPL accounts before applying is a prudent step.
Dependants and household size
Each dependant increases the DTI benchmark used to assess your minimum living expenses. A single person on $80,000 might have a DTI of approximately $2,100/month. A couple with two children on the same income might have a DTI of approximately $4,000–$4,500/month — more than double. DTI rises with both the number of dependants and your income level.
Two dependent children can reduce borrowing capacity by $80,000–$130,000 compared to an otherwise identical couple with no children. This is not a reason to delay family formation, but it is important context for timing property purchases relative to family plans.
How to increase your borrowing capacity before applying
6–12 months before applying
Cancel unused credit cards. Every $10,000 in card limits removed can add $35,000–$50,000 to borrowing capacity. If you need a card, reduce the limit to the minimum required. Allow 3 months for changes to appear in your credit file.
Pay off short-term debt. Car loans, personal loans, and BNPL count dollar-for-dollar in your back-end DTI. Prioritize clearing debts that are close to paid off. A $15,000 remaining car loan at $500/month could be worth paying out if it increases your borrowing capacity by $65,000.
Consolidate or close BNPL accounts. Multiple BNPL services leave multiple enquiries on your credit file. Close what you're not actively using.
3–6 months before applying
Build a clean transaction history. Lenders examine 3–6 months of bank statements for gambling transactions, unexplained large transfers, consistent overdrafts, and irregular spending. Regular savings demonstrated over this period also strengthens your application.
Run a pre-assessment with a broker. A mortgage broker can model your profile across multiple lenders simultaneously. Given that the difference between lenders can be $80,000–$150,000 for the same borrower, this is worth doing before committing to a specific bank.
Structural moves that improve the result
Add a joint applicant. Even a modest second income of $40,000–$60,000 typically produces a substantial uplift. Combined applications are assessed on both incomes and both debts — but the net effect is almost always positive unless one applicant has very high existing debt.
Extend the loan term to 30 years. A longer term reduces the monthly repayment at the note rate, increasing the principal you can borrow. The trade-off is more total interest — but extra repayments can always reduce this after settlement. Choosing a 30-year term doesn't commit you to 30 years of standard repayments.
Consider non-bank lenders. Non-bank lenders may offer non-QM products with different income verification requirements (bank statement loans, asset depletion loans). For specific borrower profiles — particularly self-employed applicants, investors, or those with recent employment changes — non-bank lenders can sometimes offer meaningfully higher approved amounts.
Model different lender floor rates. Some lenders apply minimum assessment floor rates (commonly 5.5%–6.0%) regardless of the actual product rate. In a falling-rate environment, a lender without a restrictive floor rate can produce a better affordability result. Use Advanced mode to model different floor rate scenarios.
Income improvements that help
Increasing income is the most direct path to higher borrowing capacity, but it also takes the most time to achieve and demonstrate. A pay rise needs to be reflected in at least one payslip to be counted. A new higher-paying job may require 3 months of payslips to verify permanency. Self-employed income needs 2 full tax years of higher earnings to fully benefit the assessment.
For borrowers timing an income increase with a property purchase, getting formal pre-approval at current income and then updating with the new income once confirmed is a common approach. Most pre-approvals are valid for 90 days and can often be extended or reassessed.
LTV bands and how they affect your rate
Your Loan-to-Value Ratio (LTV) — the loan amount as a percentage of the property value — affects both what you can borrow and the interest rate you'll pay. Most lenders price loans in LTV bands: below 60%, 60–70%, 70–80%, 80–90%, and above 90%. Borrowers at 80% LTV or below avoid PMI entirely. Moving from 85% LTV to 80% LTV typically saves 0.1–0.3% on the interest rate (a "rate discount") in addition to eliminating the PMI premium. On a $700,000 loan over 30 years, a 0.2% rate saving amounts to approximately $30,000–$40,000 in total interest. Saving an extra $35,000 in deposit to cross the 80% LTV threshold often provides a strong financial return.
Lower your property tax and insurance escrow
Because the housing payment in the 28/36 rule is full PITI, the property-tax and insurance portion of the escrow directly eats into how much loan your income can support. Buying in a lower-tax county, shopping homeowners insurance, and avoiding high-HOA condos all free up room under the 28% front-end limit. On the same income, a buyer facing 2.5% annual property tax qualifies for a noticeably smaller loan than one facing 0.8% — the difference can be tens of thousands of dollars in purchasing power.
Refinancing to increase borrowing capacity
Refinancing an existing mortgage at a lower rate, or extending the remaining term, can free up monthly cash flow and improve your affordability for a new purchase. If you refinance a 20-year remaining term back to 30 years, the monthly repayment falls significantly — this reduced commitment appears in your affordability assessment as a lower existing debt burden. The trade-off is more total interest over the life of the extended loan. Used strategically before an investment property purchase, refinancing-to-extend can meaningfully increase your assessed maximum borrowing for the new loan.
CFPB affordability rules, DTI caps, and what banks actually test
The QM 43% DTI cap and lender overlays
The CFPB's Qualified Mortgage (QM) rule requires lenders to verify that borrowers' total debt-to-income ratio does not exceed 43% for standard QM loans. FHA loans allow higher DTI ratios (up to 50%) with compensating factors such as strong FICO scores or significant cash reserves. Most major lenders apply their own overlays on top of QM minimums — requiring higher FICO scores, lower DTI, or larger reserves than the regulatory floor. The CFPB has the authority to adjust QM standards and has periodically updated the rules since the Dodd-Frank Act was enacted.
Debt-to-income monitoring
The CFPB monitors lending standards across the industry as a consumer protection measure. The standard QM DTI cap is 43%, though FHA allows up to 50% with compensating factors. Individual banks set their own overlays — some use stricter 36% back-end DTI limits for certain products. Fannie Mae and Freddie Mac allow DTI up to 50% for loans they purchase, provided the borrower has strong compensating factors (high FICO, significant reserves). In practice, borrowers above 43% DTI will find fewer lenders willing to approve their loan and may face higher rates or stricter conditions.
What lenders actually test beyond the QM rule
The QM 43% DTI cap is the minimum standard, but individual lenders layer additional tests on top. These include: FICO score minimums (many require 680+ for best rates), reserve requirements (months of mortgage payments in savings), employment stability checks, maximum loan-to-value ratios by product type, and internal credit score overlays that may restrict amounts even when DTI is technically within limits. This is why two lenders can show materially different results for identical inputs.
Responsible lending obligations
Lenders have obligations under the Truth in Lending Act (TILA) and the Dodd-Frank Act's Ability-to-Repay (ATR) rule to assess whether a borrower has a reasonable ability to repay the loan. Following the 2008 financial crisis and subsequent regulatory reform, lenders substantially increased the scrutiny applied to income verification and expenses — bank statements are now typically examined for 2–3 months, and undeclared debts, regular transfers, and discretionary spending patterns are commonly identified and factored in.
First home buyer borrowing capacity — grants, guarantees, and deposit schemes
FHA loans
FHA loans, insured by the Federal Housing Administration, allow first-time and repeat buyers to purchase with as little as 3.5% down payment with a FICO score of 580+ (10% down with scores of 500–579). FHA mortgage insurance premium (MIP) applies — an upfront premium of 1.75% of the loan amount plus annual premiums of 0.45–1.05% depending on LTV and loan term. FHA loan limits vary by county: $472,030 in most areas, up to $1,089,300 in high-cost counties (2024 figures). FHA allows DTI ratios up to 50% with compensating factors.
VA loans
VA loans are available to eligible veterans, active-duty service members, and surviving spouses. They require zero down payment, have no monthly mortgage insurance, and offer competitive interest rates. A VA funding fee (1.25–3.3% of the loan amount) applies but can be rolled into the loan. VA loans have no official maximum loan amount for borrowers with full entitlement (since 2020), though lenders set their own limits. The VA does not set a minimum FICO score, but most lenders require 620+.
USDA loans and state-level down payment assistance
USDA loans offer zero down payment for properties in eligible rural and suburban areas, with income limits typically at 115% of area median income. Many states and local governments also offer down payment assistance programs — grants or forgivable loans that help first-time buyers cover the down payment and closing costs. Programs vary significantly by location: California's CalHFA, Texas's TDHCA, and New York's SONYMA are among the largest. These programs reduce the upfront cash requirement, effectively allowing a larger proportion of savings to go toward the deposit rather than transaction costs.
First home buyer borrowing capacity considerations
First home buyers often have the most constrained borrowing capacity profiles due to: lower income levels early in careers, active student loan debts from university, limited deposit requiring a higher LTV, and shorter employment history making some income types harder to verify. The combination of student loan debt and a credit card limit (even partially used) can reduce borrowing capacity by $100,000–$150,000 compared to an otherwise equivalent profile without these commitments. Addressing these before applying is the most effective preparation strategy.
Conventional loans with low down payment
Conventional loans backed by Fannie Mae and Freddie Mac allow down payments as low as 3% for first-time buyers through programs like HomeReady and Home Possible. Private mortgage insurance (PMI) is required when putting less than 20% down, but unlike FHA MIP, conventional PMI can be canceled once you reach 20% equity. The 2024 conforming loan limit is $766,550 in most areas ($1,149,825 in high-cost areas). Conventional loans typically require a FICO score of 620+ and DTI of 43–50% depending on compensating factors.
Using crypto or non-standard assets as a deposit
Most lenders do not accept cryptocurrency directly as evidence of savings. If you hold crypto assets you intend to liquidate for a deposit, you will need to convert to USD and hold in a bank account for at least 2–3 months before applying, so that it appears as seasoned funds in your bank statements. Lenders look for a consistent savings history — a large unexplained deposit from a single transfer (even from crypto sale proceeds) may trigger additional scrutiny and requests for a paper trail documenting the source of funds.
Investment property borrowing capacity — rental income, cash-flow shortfalls, and cross-collateralization
How rental income affects borrowing capacity
Rental income from existing investment properties is typically counted at 75% of gross rent. If you receive $26,000/year in rental income, lenders will count approximately $19,500 toward your qualifying income. The 20–25% haircut accounts for vacancy periods, property management fees, maintenance costs, property taxes, and insurance. The rental income field in Detailed mode uses 80% shading by default, which can be adjusted in Advanced mode.
Cash-flow-negative rentals and borrowing capacity
If your investment property runs at a cash-flow loss — meaning the rental income is less than the loan payment and running costs — the shortfall counts as an additional monthly debt in your back-end DTI, reducing your overall borrowing capacity for a new purchase. A property generating $1,800/month in rent with $2,400/month in payments creates a $600/month shortfall. This effectively reduces your maximum loan on a new purchase by approximately $75,000–$90,000 at standard note rates.
Cross-collateralization and existing mortgages
If you own investment properties with existing mortgages, those loan payments count as monthly debt in full, regardless of rental income. The existing loans field in Standard mode lets you enter the combined monthly payments across all existing investment loans. On a $600,000 investment loan at 6.5%, the monthly payment is approximately $3,800 — a large monthly debt that pushes your back-end DTI up quickly and sharply reduces room for a new mortgage. Portfolio lenders sometimes apply alternative methods, which is another reason to compare across multiple institutions.
Investors and the back-end DTI limit
Property investors accumulating multiple mortgages are particularly affected by the back-end DTI limit. Every existing mortgage payment counts as monthly debt, so total monthly debt climbs fast relative to gross monthly income. An investor with several leveraged properties can easily exceed the 43% Qualified Mortgage DTI cap, even on a strong salary. This is why investors often need specialist lenders, documented positive cash flow, or larger down payments to keep acquiring properties.
Primary residence vs investment property — how lenders treat the difference
Your primary residence and investment properties are underwritten differently. Primary-residence loans typically attract lower rates and more favorable LTV treatment (down to 3% down on conventional, with PMI). Investment property loans typically cap LTV at 75–85% (so 15–25% down) and carry interest rates 0.5–0.875% higher than equivalent primary-residence loans. If you are buying an investment property while renting, lenders generally use the property's projected rental income (often at 75%) to help offset its payment in DTI, subject to documentation.
Negative equity and borrowing again
Negative equity occurs when your outstanding loan balance exceeds the current market value of your property. In a declining market, this can prevent refinancing (lenders won't take on a loan that exceeds the security value) and can affect your ability to borrow for a second property. If your existing property has declined in value and your LTV has risen above 80%, you may need to demonstrate equity elsewhere or wait for values to recover before accessing further credit. This is a key reason why buying at a high LTV in a volatile market carries additional risk beyond the standard repayment burden.
How borrowing capacity differs between major banks and non-bank lenders
Why the same borrower gets different amounts from different lenders
US lenders all follow The CFPB's Qualified Mortgage minimum standards but apply their own overlays. The key sources of variation are: (1) DTI limits — some lenders cap at 36%, others allow up to 50% with compensating factors; (2) income verification policies — some lenders require more documentation for variable income; (3) FICO score thresholds — some require 680+, others accept 620+; (4) reserve requirements — some require 2–6 months of mortgage payments in savings; (5) credit score overlays — internal risk models may restrict approved amounts even when DTI is within limits.
Major bank approach
The major US banks — JPMorgan Chase, Bank of America, Wells Fargo, Citibank, and US Bank — typically apply the most conservative DTI benchmarks and income verification policies, reflecting their compliance obligations and risk appetite. They also have the most sophisticated credit scoring systems, which can work in favor of borrowers with very strong FICO profiles but against those with any irregularities. Major banks are CFPB/OCC-supervised and must comply with all Qualified Mortgage requirements.
Smaller banks and credit unions
Smaller lenders — regional banks, credit unions, mutual banks — often use more flexible DTI benchmarks and may have less stringent income shading policies for specific income types (particularly self-employed). Some regional banks have stronger relationships with specific industries or employment types, which can produce better outcomes for borrowers in those categories. They are still federally regulated and must comply with QM requirements.
Non-bank lenders
Non-bank lenders — including Rocket Mortgage, loanDepot, New American Funding, Guaranteed Rate, and PennyMac — are not traditional banks but are still subject to CFPB oversight and state licensing requirements. Some non-QM lenders offer products outside standard Qualified Mortgage guidelines, using alternative documentation (bank statements, asset depletion) rather than traditional income verification. This can produce meaningfully higher approved amounts for the same borrower. Non-bank lenders are typically best suited to borrowers who face specific constraints with traditional lenders — self-employed with complex financials, recently started businesses, or unusual income structures. Rates are usually 0.3–0.8% higher than major bank rates to reflect the additional risk.
The value of mortgage broker comparison
A mortgage broker with access to multiple lenders can model your profile against the full market simultaneously. Given that the difference between the best and worst policy fit for a specific borrower can be $80,000–$150,000 in approved amount — and potentially 0.5–1.0% in interest rate — this comparison has significant financial value. Brokers are paid by lenders (via trail commission) rather than the borrower in most cases, though this structure means it's worth confirming you're being shown options from the full panel rather than a preferred subset.
Online lenders and digital mortgage platforms
Digital-first lenders including Better.com, SoFi, Rocket Mortgage, and Ally Home offer highly streamlined application experiences and often competitive rates — particularly for borrowers with clean, straightforward profiles. Their borrowing capacity assessments typically use standard Qualified Mortgage methodology, so the approved amount is similar to a traditional lender for the same inputs. The primary advantage is speed and cost — lower overheads allow sharper pricing. For complex situations (self-employed, multiple income sources, lower FICO scores) traditional lenders or specialist non-bank lenders generally offer more flexible assessment policies than fully automated online platforms.
Home loan pre-approval — what it is, how to get it, and how long it lasts
What is pre-approval?
Pre-approval (also called conditional approval or approval in principle) is a lender's written confirmation that they would be prepared to lend you up to a specified amount, subject to final verification. It confirms your borrowing capacity has been assessed against your income, expenses, and debts, and gives you a realistic budget for property searching. Pre-approval is not a guarantee of final approval — the lender still needs to assess the specific property you buy (via valuation) and reconfirm your financial position at the time of purchase.
How to get pre-approval
Most lenders offer pre-approval online, through a branch, or via a mortgage broker. You'll need to provide: recent payslips (2–3), your last two tax returns if self-employed, bank statements (3–6 months), evidence of savings for deposit, identification documents, and details of existing debts and credit cards. The lender will run a credit check as part of the assessment, which appears on your credit file. Multiple credit enquiries within a short period can slightly reduce your credit score, so avoid applying to many lenders simultaneously — use a broker to compare without multiple enquiries.
How long does pre-approval last?
Most pre-approvals are valid for 90 days. After 90 days, you typically need to request an extension or reapply. Your financial position is reassessed at renewal, so changes to income, new debts, or interest rate movements can affect the renewed amount. If you haven't found a property within 90 days, renewing early — before expiry — is generally smoother than lapsing and restarting. Some lenders offer 6-month pre-approvals for borrowers with complex situations.
Pre-approval vs formal approval
Pre-approval lets you bid at auction or make an offer with confidence. Formal (unconditional) approval is issued once the lender has assessed the specific property, received a satisfactory valuation, and completed final credit checks. Settlement typically occurs 30–90 days after exchange. At this stage, your financial position must still match what was assessed at pre-approval — major changes (job loss, new car loan, large credit card balance) between pre-approval and settlement can jeopardise formal approval.
Using this calculator for pre-approval preparation
The figure from this calculator gives you a strong indication of your pre-approval range. To maximize your formal pre-approval amount: close unused credit cards 3 months before applying, pay down short-term debts, maintain consistent savings, and avoid taking on new financial commitments. Run the Advanced mode on this calculator to model different lender buffer rates — some non-bank lenders assess at lower effective rates, producing higher pre-approval limits for the same income.
Fixed vs variable rate — how your rate type affects borrowing capacity
Does a fixed rate increase borrowing capacity?
In general, no — and in some cases a fixed rate can reduce your assessed capacity. Lenders assess your ability to repay based on the note rate and the 43% DTI cap. For ARMs, lenders must qualify at the fully indexed rate or note rate plus 2%, whichever is higher. Because fixed rates provide certainty, they avoid the ARM qualifying rate issue — but the DTI cap applies equally regardless of rate type. What changes is certainty, not capacity.
How ARMs are qualified
For adjustable-rate mortgages (ARMs), federal rules require lenders to qualify you at the greater of the fully indexed rate or the note rate plus 2 percentage points — not the low introductory teaser rate. If your 5/1 ARM starts at 5.8% but the fully indexed rate works out to 7.0%, the lender qualifies your DTI at 7.0%, which lowers the loan you can support. Fixed-rate loans avoid this because the qualifying rate is simply the note rate, so most US borrowers seeking maximum certainty use a 30-year fixed.
Split loans — part fixed, part variable
A split loan divides your borrowing into a fixed component (rate certainty on part of the loan) and a variable component (flexibility for extra repayments on the remainder). Most lenders assess split loans using a blended effective rate across both portions. The borrowing capacity impact is usually minimal versus a fully variable loan at the same overall rate.
Rate movements and future capacity
If the Fed cuts rates, adjustable rate borrowers benefit at their next rate adjustment — and the lower qualifying rate means assessed capacity rises as well. A 1% rate cut (e.g., from 6.2% to 5.2%) changes the monthly payment calculation, which typically increases borrowing capacity by $40,000–$70,000 on a $100,000 income. Fixed rate borrowers don't see this benefit during their fixed period. When comparing loan products, use the Advanced mode on this calculator to model the impact of different note rates on your maximum loan.
Guarantor home loans United States — how they work and who qualifies
What is a guarantor home loan?
A guarantor home loan allows a parent or immediate family member (the guarantor) to use equity in their own property as additional security for your loan. This allows you to borrow up to 100% of the purchase price (or even include Transfer tax and costs) without a traditional deposit, and typically without paying Private Mortgage Insurance (PMI). The guarantor doesn't provide cash — they put their property up as security, meaning the lender can call on that property if you default and your property's value doesn't cover the debt.
How guarantor loans affect borrowing capacity
The guarantor arrangement addresses the deposit constraint rather than the affordability constraint. Your maximum loan is still determined by your income, expenses, and debt — the borrowing capacity calculation shown in this calculator still applies. What changes is the deposit requirement: instead of needing a 10–20% deposit, your guarantor's equity substitutes for some or all of it. You still need to demonstrate you can service the full repayment yourself.
Limited vs unlimited guarantee
A limited (or family) guarantee restricts the guarantor's exposure to a specific dollar amount — typically the amount required to bring the loan-to-value ratio to 80% (removing PMI). Once the loan balance falls below 80% LTV through repayments or property price growth, the guarantee can be released. An unlimited guarantee exposes the guarantor to the full loan amount and is now uncommon. Always insist on a limited guarantee and seek independent legal advice before proceeding.
Who qualifies as a guarantor?
Most lenders accept parents or step-parents as guarantors. Some accept siblings or grandparents. The guarantor must own property in the United States with sufficient equity (typically at least 20% of its value free of debt) and must meet the lender's own borrower criteria — they typically cannot have adverse credit history. The guarantor should seek independent financial and legal advice before signing, as their property is at genuine risk if you cannot meet repayments.
Borrowing on part-time income, parental leave, or returning to work
Part-time income and home loans
Part-time W-2 income is assessed at 100% of the documented rate, provided you have been in the role for at least 3–6 months (most lenders) or 12 months (more conservative lenders). The critical factor is demonstrating the role is permanent part-time, not casual. A permanent part-time employee earning $55,000/year is assessed the same way as a full-time employee on the same income. The borrowing capacity result will be proportionally lower — but the methodology is identical. Use this calculator with your actual part-time income figure for an accurate estimate.
Parental leave — on leave at the time of applying
This is one of the most nuanced income situations. If you are currently on paid parental leave (employer-provided or government PPL), lenders typically assess your borrowing capacity at your return-to-work salary, not your current parental leave payment. You'll need a letter from your employer confirming: your pre-leave salary, your scheduled return-to-work date, and that your role is being held for you. Some lenders require you to have already returned to work before approving. If both applicants are on parental leave simultaneously, most lenders will not proceed until at least one has returned.
Returning to work after parental leave
Once you have returned to work, lenders typically require 3 months of payslips at your return-to-work salary before assessing it at 100%. During the 3-month period, some lenders will accept a lower shading (80%) with a letter of employment. If you are returning to work part-time, your income will be assessed at the actual part-time rate — which may differ from your full-time pre-leave salary. Plan applications after you have 2–3 months of payslips at your current rate if possible.
Government Paid Parental Leave (PPL)
Government FMLA leave is unpaid at the federal level, so there is typically no government payment to count as income. Some states (California, New York, New Jersey, Washington) offer paid family leave benefits, but these are generally not accepted as assessable income for home loan purposes by most lenders, as they are temporary. Employer-funded parental leave that continues your salary is treated differently — it is counted as your ongoing salary income, provided there is documented evidence of a return-to-work date and your employment continuity is confirmed.
Borrowing capacity for part-time workers — examples
A permanent part-time nurse working 3 days/week on a pro-rata $52,000 salary with no debts would typically qualify for approximately $195,000–$250,000. A teacher working 4 days/week on $66,000 with no debts would typically qualify for approximately $265,000–$335,000. These can be materially improved with a joint application — a part-time worker paired with a full-time partner typically sees a combined borrowing capacity much stronger than either alone.
Rent vs buy in United States 2025 — when buying makes financial sense
The core financial trade-off
The rent vs buy decision in the United States is primarily a comparison of two costs: the ongoing cost of renting (rent + opportunity cost of the deposit not invested) versus the ongoing cost of owning (mortgage repayments + rates + maintenance + insurance − any capital growth). In most major US metro markets, buying is more expensive in the short term but typically superior over a 7–10 year+ horizon, assuming typical historical home appreciation rates of 3–5% per year.
The break-even rule of thumb
A commonly used guideline: if your weekly rent is less than 0.5% of the purchase price per year (i.e., annual rent is less than 2.5% of purchase price), you may be better off renting and investing the equivalent deposit. If your rent is more than 2.5–3% of the purchase price annually, buying likely makes financial sense if you can service the loan. Example: a $700,000 property — if annual rent is under $17,500 ($337/week), renting may be advantageous. If you're paying $500/week ($26,000/year = 3.7% of purchase price), buying is likely the better long-term financial decision.
Non-financial reasons to buy
Security of tenure (landlords can terminate leases), the ability to renovate and personalize, stability for children's schooling, and the psychological benefit of owning your home are significant factors that don't appear in financial comparisons. Many Americans place high value on these benefits regardless of the financial calculus.
What this calculator tells you about the rent vs buy decision
Your borrowing capacity sets the price range you can access. If your maximum loan is $550,000 and you have a $100,000 deposit, your target purchase price is up to $650,000. The monthly repayment at your actual rate (shown in the results above) is your direct comparison to your current monthly rent. If the mortgage repayment is within 20–30% of your current rent, the financial case for buying is typically strong — you are building equity rather than paying a landlord, and the repayment is largely fixed while rents tend to rise with inflation over time.
Construction loans, apartment borrowing, and specific home loan types
Construction loan borrowing capacity
Construction loans are assessed differently from standard home loans. The lender approves the total cost (land + build), but funds are drawn progressively as construction stages are completed. During construction, you typically make interest-only repayments on the drawn-down amount, transitioning to principal and interest once construction is complete. For affordability purposes, most lenders assess the full end-debt at principal and interest from the outset (not the interest-only construction phase), which produces a similar borrowing capacity to a standard loan. Some lenders apply additional risk overlays for construction, particularly for owner-builder projects.
Can I borrow more for a new build?
In some cases, yes. Some states and local governments offer incentives for new construction, such as property tax abatements, transfer tax exemptions, or down payment assistance grants for new builds. FHA and VA loans are available for new construction with approved builders. These programs don't directly increase your borrowing capacity but reduce your required cash outlay, allowing a larger portion of savings to go toward the down payment rather than transaction costs.
Apartment and unit borrowing — does it differ?
Borrowing capacity is the same regardless of property type — it's determined by your income and expenses, not what you're buying. However, lenders apply Loan-to-Value Ratio restrictions that effectively constrain apartments more than houses. High-density apartments (buildings over 40 storeys, or studio/1-bedroom apartments under 50sqm in major cities) may be subject to maximum LTV of 70–80% rather than 90–95%, meaning you need a larger deposit for the same purchase price. Serviced apartments and student accommodation are typically assessed at maximum 60–70% LTV and may not be eligible for standard residential lending at all.
Bridging loans
A bridging loan allows you to purchase a new property before selling your existing one. The lender assesses whether you can service both loans simultaneously (peak debt scenario) or whether the sale proceeds will reduce the debt within the agreed bridging period (typically 6–12 months). Bridging loans are assessed on affordability of the peak debt, which significantly reduces how much you can borrow during the bridging period. They are best used for short gaps between purchase and sale, not as a medium-term financing strategy.
Frequently asked Frequently asked questions
How accurate is this borrowing capacity calculator?
This calculator uses standard QM-compliant affordability methodology and produces reliable planning estimates. Actual bank approvals vary by ±10–20% because each lender applies their own DTI multipliers, income shading rules, credit-score overlays, and DTI caps. Use this number to stress-test your price range, understand the key drivers, and identify what to work on before applying. Then get formal pre-approval for a precise figure based on your actual credit file and the lender's specific policy.
How much can I borrow on a $100k salary in the United States?
On a $100,000 gross salary with no debts, no student loan, and no dependants, the typical borrowing capacity range is $500,000–$600,000. This applies the 28/36 DTI rule (front-end housing payment near 28% of gross monthly income) at a 6.5% note rate over a 30-year term. Adding a $400/month student loan payment reduces this by approximately $55,000–$70,000. Adding a $15,000 credit card limit reduces this by approximately $55,000–$65,000. Enter your actual details in the calculator above for a personalized figure.
Does Private Mortgage Insurance (PMI) (PMI) increase my borrowing capacity?
No — PMI allows you to borrow above 80% LTV without a 20% deposit, but it doesn't change the maximum loan amount a lender will approve on affordability grounds. You still need to demonstrate you can afford repayments at the assessed rate. PMI increases your upfront cost and total loan balance; it doesn't increase your approved borrowing limit. The main benefit of PMI is enabling you to buy sooner without a full 20% deposit rather than waiting to save more.
How does student loan debt affect borrowing capacity?
Student loan monthly payments are treated as a fixed debt obligation in DTI calculations. On a standard 10-year repayment plan with $40,000 in student loans, the monthly payment is approximately $400–$450 — reducing borrowing capacity by roughly $55,000–$70,000 at standard rates. For income-driven repayment (IDR) plans where the actual payment is $0, lenders may use 0.5–1% of the outstanding balance as the monthly obligation. If you have a small remaining student loan balance, paying it off before applying may be worth the cost in increased borrowing capacity.
What income counts toward borrowing capacity?
Base W-2 salary from permanent employment is counted at 100%. Regular overtime and bonuses with 12+ months history are typically accepted at 80%. Rental income is assessed at 80% (75% at some lenders). Casual income requires 12 months of history and is typically counted at 80%. Self-employed income is generally the lower of the last two years' net taxable income. Social Security income, VA disability compensation, and other documented government payments are accepted by many lenders. Child support and alimony received may be counted with demonstrated history. Investment dividends may be accepted with evidence of consistent receipts.
Why do different banks offer different borrowing amounts?
Because DTI limits, income documentation rules, FICO score minimums, reserve requirements, and credit policy all differ between institutions. Major banks tend to be more conservative. Regional banks, credit unions, and non-bank lenders sometimes have more flexible policies for specific borrower profiles. The difference between the most and least favorable lender for a given borrower profile can be $80,000–$150,000 in approved loan amount. A mortgage broker can compare your profile across multiple lenders simultaneously to identify the best fit.
Can I borrow more with an interest-only loan?
Generally no — and in some cases, yes but the assessment is more complex. US lenders typically assess interest-only loans at principal and interest repayments for the remaining loan term after the IO period. On a 30-year loan with a 5-year IO period, the lender assesses repayments at P&I over 25 years — which typically produces a higher monthly payment than a standard 30-year P&I loan from day one. Some lenders qualify IO loans at a higher rate as well. The net effect is that IO loans usually produce the same or lower maximum borrowing capacity than equivalent P&I loans.
How does the lender qualifying rate work?
US lenders qualify borrowers at a rate higher than the actual note rate to ensure they can handle potential rate increases. For adjustable-rate mortgages (ARMs), lenders typically qualify at the fully indexed rate or the note rate plus 2%, whichever is higher. For fixed-rate loans, most lenders qualify at the actual rate. The CFPB's Qualified Mortgage rule caps total DTI at 43% — this is the primary constraint on how much you can borrow, regardless of the qualifying rate used.
What is the Debt-to-Income ratio (DTI)?
DTI is the ratio of your total monthly debt payments to your gross monthly income, expressed as a percentage. US lenders use two measures: front-end DTI (housing costs only, typically capped at 28–31%) and back-end DTI (all debts including the proposed mortgage, typically capped at 43% for Qualified Mortgages). FHA loans allow back-end DTI up to 50% with compensating factors. A borrower earning $80,000/year ($6,667/month) with a 43% DTI cap has a maximum of $2,867/month available for all debt payments including the new mortgage.
How does a second applicant affect borrowing capacity?
Adding a second applicant typically produces a substantial increase in borrowing capacity, even on a modest second income. The additional income increases the combined surplus, more than offsetting the higher combined DTI. A couple with $100,000 + $60,000 = $160,000 combined income generally borrows significantly more than two separate applications at $80,000 each — because the combined household costs do not double when two people live together. The second applicant's credit profile, debts, and income type are all fully assessed, so the benefit depends on the second applicant's profile being clean.
Is borrowing capacity the same as what I can afford?
No — borrowing capacity is what a lender believes you can service based on their assessment methodology. What you can comfortably afford is a personal financial decision that depends on your lifestyle, savings goals, income security, risk tolerance, and life plans. Many financial advisers suggest keeping total housing costs (mortgage, rates, insurance, maintenance) below 30% of gross income. The lender's maximum is not necessarily a target — it's a ceiling. Many borrowers choose to borrow significantly less than their maximum to maintain financial flexibility.
How long is a borrowing capacity estimate valid?
A calculator estimate like this one is valid until your inputs change. Formal pre-approval from a lender is typically valid for 90 days. During that period, you have a reasonable expectation that the lender will approve the specified loan amount, subject to satisfactory property valuation and final credit checks. Pre-approval can usually be renewed or extended if you haven't purchased within 90 days. Changes to income, debts, or interest rates during the pre-approval period may require reassessment.
Can I get a home loan on part-time income?
Yes — permanent part-time W-2 income is assessed at 100% of the documented rate, provided you have been in the role for at least 3–6 months. The borrowing capacity is proportionally lower than full-time income but calculated the same way. A part-time worker earning $55,000 with no debts typically qualifies for $195,000–$250,000. Adding a full-time joint applicant significantly improves the result.
Can I get a home loan while on parental leave?
Most lenders assess your borrowing capacity at your confirmed return-to-work salary rather than your parental leave payment. You'll need a letter from your employer confirming your pre-leave salary and return date. Some lenders require you to have already returned to work. Once back, 3 months of payslips at your current rate is typically sufficient for a full assessment.
What is a guarantor home loan and how does it help?
A guarantor loan allows a parent or family member to use equity in their own property as additional security. This lets you borrow without a full deposit and typically without paying Private Mortgage Insurance (PMI). Your borrowing capacity is still determined by your own income and expenses — the guarantor removes the deposit barrier, not the affordability barrier. The guarantor's property is at risk if you default, so independent legal advice is essential.
Does a fixed rate increase my borrowing capacity?
Generally no. Fixed-rate loans are qualified at the note rate, and the 28/36 DTI limits apply the same way regardless of rate type. Adjustable-rate mortgages are qualified at the greater of the fully indexed rate or the note rate plus 2 points, which can actually reduce capacity slightly versus a fixed rate. If your goal is maximizing borrowing capacity, reducing debts and card limits before applying matters far more than rate type.
How much do I need to earn to buy a house in New York, Los Angeles, or Dallas?
In New York City and the San Francisco Bay Area, where median home prices often exceed $1.0M–$1.5M, a single borrower typically needs $200,000+ income or a joint application of $150,000+ combined to access most markets. In Los Angeles, $120,000–$160,000 combined accesses suburban areas. In Dallas, Houston, and other Sun Belt metros, $80,000–$120,000 combined accesses most established neighborhoods. These figures assume a 20% down payment is available. FHA loans allow entry with 3.5% down payment for properties under county FHA limits.
Which bank lends the most — JPMorgan Chase, Bank of America, Wells Fargo, or Citibank?
There is no single answer — each bank's approved amount for the same borrower varies by 10–20% due to different DTI overlays, income verification policies, and FICO score requirements. JPMorgan Chase and Bank of America tend to apply more conservative DTI limits. Wells Fargo and Citibank have slightly different income treatment for specific employment types. A mortgage broker or comparison sites like Bankrate, NerdWallet, or LendingTree can compare your profile across multiple lenders to identify which gives you the highest approved amount.
Is it better to rent or buy in the United States right now?
If your monthly mortgage repayment (shown in the results above) would be within 20–30% of your current rent, buying is typically the stronger long-term financial decision — you build equity rather than paying a landlord, and your repayment is largely fixed while rents rise with inflation. If the repayment would be more than double your rent, continuing to save while renting may make sense, particularly in high-cost coastal markets like San Francisco and New York where yields are low relative to prices.
What is the bi-weekly repayment on my loan?
bi-weekly repayments are calculated as the monthly repayment multiplied by 12, divided by 26 pay periods per year. This is shown in the results panel above. Making bi-weekly rather than monthly repayments effectively means you make the equivalent of 13 monthly payments per year instead of 12, which reduces the total interest paid and shortens the loan term by several years on a standard 30-year mortgage.
What are FHA, VA, and USDA loan programs?
FHA loans allow down payments as low as 3.5% with FICO scores of 580+. VA loans offer zero down payment for eligible veterans and active military. USDA loans offer zero down payment for properties in eligible rural areas. Each program has specific income limits, property requirements, and mortgage insurance rules. These programs don't increase your borrowing capacity directly, but they significantly reduce the deposit required to purchase. Check HUD.gov, VA.gov, or USDA.gov for current eligibility and loan limits.
Can I count my side hustle or freelance income for a home loan?
Only if you have 2 full tax years of returns showing this income. If your business is less than 2 years old, most major lenders will not include the income at all. Some specialist non-bank lenders accept 12 months of self-employment income with an accountant's letter. If your primary employment is W-2, that income is still assessed regardless of the side income situation.
Do 401(k) contributions or pre-tax deductions affect borrowing capacity?
Lenders assess your gross income before voluntary pre-tax deductions, not your reduced take-home pay. 401(k) contributions, HSA contributions, and health insurance premiums are added back to arrive at gross qualifying income. This means voluntary pre-tax deductions do not reduce your borrowing capacity — resulting in slightly better capacity than your take-home pay alone would suggest.
Do property taxes and insurance affect how much I can borrow?
Yes. The front-end DTI test measures your full housing payment — principal, interest, property tax, homeowners insurance, and any HOA dues (PITI) — against 28% of your gross monthly income. Higher property taxes or insurance premiums leave less room for principal and interest, so the same income supports a smaller loan in a high-tax county than in a low-tax one. Mortgage insurance (PMI or FHA MIP) on low-down-payment loans works the same way.
Can I refinance to increase my borrowing capacity?
Refinancing at a lower rate or extending your remaining loan term reduces your monthly repayment, which reduces your existing debt commitment in a future affordability assessment. Extending a 20-year remaining term to 30 years can meaningfully improve the capacity calculation for a second property. The trade-off is more total interest — but this strategy is commonly used before investment property purchases.
Where these figures come from
Property and mortgage figures on this page are drawn from The Federal Reserve (rate data), the Consumer Financial Protection Bureau (mortgage rules), The IRS (property-related tax deductions), and HUD.
- US mortgage rates — Federal Reserve / FRED — 30-Year Fixed Mortgage Average.
- Mortgage & closing rules — CFPB — Owning a Home.
- Home mortgage interest deduction — IRS Topic 504 — Home Mortgage Points.
- Property tax deduction (SALT cap) — IRS Topic 503 — Deductible Taxes.
- Capital gains on home sale ($250k/$500k) — IRS Topic 701 — Sale of Your Home.
- FHA & federal housing programs — HUD — US Department of Housing and Urban Development.
Last checked: April 2026. Rates and thresholds are reviewed against the source of record each November, when annual adjustments for the following tax year are published.