Total Debt Payoff Calculator 2026
About to start a new job, or just want to know what you actually take home.
Calculate how long until you are debt-free in United States. Enter your total outstanding debt, average interest rate across all debts, and your total monthly payment. Shows months to zero and total interest paid.
Stop adding new debt while paying off existing debt for best results.
Months to become debt-free at a given payment rate
Amortisation model
Each month: interest = balance × (APR/12). Principal paid = monthly payment − interest. New balance = old balance − principal paid. The calculator runs this month by month until the balance reaches zero. Higher payments and lower rates dramatically reduce both time and total interest.
Avalanche, snowball, and hybrid approaches
Debt avalanche (mathematically optimal)
List debts from highest APR to lowest. Pay minimums on all, direct all extra money to the highest-rate debt. Once paid, redirect to next. This minimises total interest paid.
Debt snowball (psychologically powerful)
List debts from smallest balance to largest. Pay minimums on all, attack the smallest balance first. Quick wins build momentum. Costs more in interest but improves follow-through for many people.
Avalanche vs snowball — the actual numbers
Avalanche is always mathematically optimal because it attacks the highest-APR debt first, minimizing interest accrual. Snowball is often behaviorally optimal because paying off a small debt quickly creates a psychological "win" that improves follow-through. A 2016 Harvard Business Review study by Gal and McShane found snowball users were more likely to eliminate their total debt, even though avalanche is cheaper on paper. Which to pick depends on whether your bottleneck is money or motivation.
The same four debts, two strategies
| Debt | Balance | APR | Min payment |
|---|---|---|---|
| Store card | $1,200 | 28.9% | $35 |
| Visa | $6,800 | 22.4% | $170 |
| Auto loan | $14,500 | 7.2% | $380 |
| Student loan | $18,000 | 5.5% | $195 |
Total $40,500 across four debts, minimums $780/month, budget $1,100/month available ($320 extra).
Avalanche order
Store card (28.9%) → Visa (22.4%) → Auto (7.2%) → Student (5.5%). Payoff: ~51 months, total interest paid: ~$8,200.
Snowball order
Store card ($1,200) → Visa ($6,800) → Auto ($14,500) → Student ($18,000). Payoff: ~52 months, total interest paid: ~$8,650. In this specific example the two orderings happen to coincide (smallest balance = highest APR), so the difference is small. When a large-balance debt has a high APR (e.g. $18,000 Visa at 22% vs $1,200 loan at 6%), avalanche can save $3,000-6,000+ on a 5-year payoff.
Which to choose
If the interest-cost gap is under ~$1,500, pick the method you'll actually stick to. If it's larger, force yourself onto avalanche. A practical hybrid: if your smallest debt is under $500, clear it first for momentum, then switch to avalanche for the rest. The CFPB's debt resources describe both approaches.
US household debt by category 2026
US households carried $17.94 trillion in total debt as of Q4 2024, per the New York Fed's quarterly Household Debt and Credit Report. Knowing how your balances compare to averages helps identify which debt to kill first — APR always trumps size.
Composition of US household debt (NY Fed Q4 2024)
| Category | Total US balance | Avg per household holder | Typical APR range (2026) |
|---|---|---|---|
| Mortgage | $12.61 trillion | ~$240,000 | 6.5 – 7.5% (30yr fixed) |
| HELOC | $0.39 trillion | ~$50,000 | 8.5 – 10.5% |
| Auto loan | $1.66 trillion | ~$24,000 | 7.0 – 14.5% |
| Student loan | $1.62 trillion | ~$38,000 (43m borrowers) | 5.0 – 9.0% federal; 10-15% private |
| Credit card | $1.21 trillion | ~$6,500 revolving | 21 – 29%; Fed G.19 avg 21.8% |
| Personal / other | $0.55 trillion | ~$11,500 | 10 – 25% |
Which to attack first
Credit-card APR at 22-29% is almost always higher than any realistic investment return after tax — eliminating $5,000 of credit-card debt beats adding $5,000 to a brokerage account, guaranteed. Auto loans above ~8% and private student loans above ~7% belong in the avalanche zone. Federal student loans with income-driven repayment, and mortgages below ~6%, are usually worth keeping while investing the difference. The Fed's consumer credit data (G.19 release) publishes current average APRs monthly.
Frequently askedFrequently asked questions
Should I pay off debt or invest?
If your debt interest rate is higher than your expected investment return (after tax), pay off debt first. Credit card debt at 20%+ APR almost always beats investing. Personal loans at 6–8% APR: depends — compare to expected investment returns. Mortgage at 4–5%: investing in tax-advantaged accounts may be preferable, especially if employer matching exists.
Can I get help with debt in the US?
US free debt counselling: National Foundation for Credit Counseling (NFCC.org), credit unions, and non-profit credit counseling agencies. The FTC website has guidance on avoiding debt relief scams. Options for serious debt include debt management plans, debt settlement (risky), and bankruptcy (Chapter 7 or 13).
Where these figures come from
Debt and credit figures on this page come from the Consumer Financial Protection Bureau (CFPB) for consumer-protection rules, The Federal Reserve (rate data), and the FTC for fair-lending oversight.
- Consumer credit rules & disclosures — CFPB — Consumer Financial Protection Bureau.
- Credit card rates & interest data — Federal Reserve — Consumer Credit (G.19).
- Debt collection & fair-lending — FTC — Debt Collection.
- Student loan programs — US Department of Education — Federal Student Aid.
Last checked: July 2026. Rates and thresholds are reviewed against the source of record each November, when annual adjustments for the following tax year are published.
Select the question that matches where you are right now.
Your result shows the repayment schedule, total interest cost, and payoff timeline based on the loan or debt details you entered.
Use this to compare repayment strategies — extra repayments, higher frequency payments, or refinancing at a lower rate. See which approach saves the most interest.
Not a loan offer or approval. Actual loan terms depend on the lender's credit assessment, fees, and the specific product you choose.
Uses standard amortisation formulas with the rate and term you entered. All calculations run in your browser — no data is sent to any server.
Debt repayment outcomes are driven by the interest rate, repayment amount, and loan term. Even small changes to any of these can materially shift the total cost and payoff date.
A 0.5% rate reduction on $30,000 of debt saves hundreds in interest over the life of the loan. Refinancing or negotiating a better rate is often the highest-impact move.
Even $50/month extra on a $20,000 loan can cut months off the term and save significant interest. The earlier you make extra payments, the greater the compounding benefit.
Switching from monthly to fortnightly effectively makes 13 monthly payments per year instead of 12 — reducing the term and total interest without increasing your per-pay amount.
To pay off debt faster, focus on the highest-rate debt first, increase repayment frequency, and avoid taking on new debt while paying down existing balances.
Pay minimums on all debts, then direct every extra dollar to the highest-rate debt. This minimises total interest paid across all your debts.
Moving a credit card balance to a lower-rate personal loan, or refinancing a car loan, can reduce the rate and accelerate payoff.
Reducing your card limit prevents re-borrowing what you've paid off — and improves your borrowing capacity for future applications.
Debt management connects to budgeting, savings, and credit decisions. Use these calculators to plan your next move.