Car Finance Calculator — the United Kingdom 2026-27
Buying a car? Know your monthly payment before you walk into the dealer.
Estimate UK car finance repayments with GBP pricing, APR, deposits, part-exchange values, lender fees, and optional final payments.
United Kingdom Car Finance Notes
UK car finance shoppers often compare HP, PCP, personal loans, deposit size, part-exchange value, APR, and the optional final payment due at the end of a PCP.
Use the GBP version to test monthly affordability, total amount payable, mileage-related risk, and whether the final payment fits your plans.
This version uses UK terms such as APR, part-exchange, PCP, HP, and optional final payment rather than Australian comparison-rate or US auto-loan wording.
UK-specific treatment for car finance: figures are framed in pounds, with British household or business wording and the assumptions commonly seen in PAYE, HMRC, mortgage, pension, and consumer-credit contexts.
Watch for UK markers in the page copy and inputs: HMRC, PAYE, National Insurance, pension contributions, vehicle tax, miles, APR, part-exchange, council tax, VAT, and GBP-based totals.
The result should be read as a United Kingdom estimate, so compare it with UK provider quotes, HMRC or GOV.UK guidance, lender affordability rules, devolved-nation differences, or regulated advice where needed.
Uses P+I amortisation. APR may differ from your actual loan. Always get pre-approved and compare total cost. Not financial advice.
Select the question that matches where you are right now.
Your result shows the monthly repayment, total interest cost, and APR for your car finance. The amortisation chart (Standard mode) shows how your balance, interest, and principal split each year — early payments are mostly interest.
In early months, most of each repayment is interest — very little reduces the principal. On a £35,000 loan at 8.5%, Month 1 interest is approximately £248; principal reduction is only £470. By Month 60, this reverses: mostly principal with very little interest. The amortisation chart shows this visually.
A longer term (7 years vs 5) reduces monthly repayments but significantly increases total interest. A £35,000 loan at 8.5% over 7 years: £545/month but £11,770 total interest. Over 5 years: £718/month but only £8,080 total interest. The shorter term saves £3,690 — worth it if you can afford the higher payment.
The monthly payment is not the right metric for comparing loans. A dealer offering "£50 less per month" may be extending your term or charging more interest overall. Always compare: total repaid (monthly × months + balloon + fees). Use this calculator to compute total cost for each offer you receive.
The interest rate you pay on car finance can vary by 5–10% depending on where you get your loan. This is worth thousands of pounds on a 5-year loan.
Apply to your bank or a building society for pre-approval before visiting a dealership. Pre-approval gives you a firm rate in writing, sets your budget, and gives you leverage at the dealer. If the dealer can beat your pre-approved rate, that is a genuine saving. If not, use your pre-approval. Pre-approval does not obligate you to buy.
Your credit score significantly affects the rate you are offered. Scores above 750 typically get the best rates; below 600 may face 2–4% higher rates or be declined by major banks. Check your credit score for free via Equifax, Experian, or Illion before applying. Improve it by paying all bills on time for 6 months before applying for significant finance.
Dealers earn commission from finance companies — typically 1–3% of the loan value as an upfront commission when they sign you up. This creates a structural incentive to maximise your interest rate. Some dealers also mark up the interest rate above the wholesale rate they can offer, keeping the difference as additional profit. The 0% finance offers are usually subsidised by the manufacturer on specific overstocked models — and the price of the car is often inflated to compensate. If a 0% offer exists, compare the price to the same car bought at market rate with your own finance.
A optional final payment (residual value) is popular for business finance but can be a trap for personal buyers. Here is what you need to know.
A balloon defers a portion of the principal to the end of the loan. Monthly repayments are calculated on the remaining principal only. Example: £40,000 loan, 20% balloon (£8,000). You repay only £32,000 over 5 years in monthly payments, then owe £8,000 at Month 60. Options at that point: pay cash, refinance the £8,000, or trade in the car.
Despite lower monthly payments, the total interest on a balloon loan is usually higher. You are paying interest on the balloon amount every month (it is in the loan balance) without reducing it. On a £40,000 loan at 8.5% over 5 years: no balloon costs £8,080 interest; 20% balloon costs approximately £9,040 — £960 more, plus the balloon repayment risk.
If the car's market value at the end of the term is lower than the balloon amount, you owe more than the car is worth. You must either pay the shortfall from savings, roll it into a new loan (increasing total debt), or keep the car and refinance. This is particularly risky for EVs, which are currently depreciating fast, and for high-mileage vehicles that lose value quickly.
Business vehicle finance has significant tax advantages over personal finance — and salary sacrifice car schemes offer an additional layer of pre-tax benefit for employees.
Limited companies and sole traders usually buy through Hire Purchase (the business owns the car and claims capital allowances) or lease it on business contract hire (rentals are deductible). A VAT-registered business can generally reclaim 50% of the VAT on a lease rental where the car has some private use, and 100% of the VAT on the maintenance element. New and unused fully electric cars qualify for a 100% first-year capital allowance; other cars get 18% or 6% writing-down allowances depending on CO2 emissions.
Ultra-low-emission cars (75 g/km CO2 or less) are carved out of the Optional Remuneration Arrangement rules, so an employee who gives up gross salary for an electric-car lease still saves income tax and National Insurance on the amount sacrificed. The only tax cost is company-car Benefit-in-Kind, and the EV appropriate percentage is just 4% for 2026/27. On a £40,000 EV P11D value that is £1,600 of taxable benefit — about £640 a year for a 40% taxpayer, easily outweighed by the tax and NI saved on the sacrifice.
Business vehicle finance involves company-car BIK, VAT recovery, capital allowances, and the OpRA/salary-sacrifice rules that interact in complex ways. The optimal structure depends on your specific tax position, turnover, and how the car is used. Always speak to an accountant before committing to business vehicle finance — the after-tax cost can vary by thousands depending on how it is structured.
The repayment formula, APR, and how optional final payments work
Monthly repayment formula
Monthly repayment = P × [r(1+r)ⁿ] ÷ [(1+r)ⁿ−1] where P = loan amount, r = monthly rate (annual rate ÷ 12), n = total months. With a optional final payment, the repayment is calculated on the effective principal (total loan minus present value of the balloon).
Optional final payment (residual)
A optional final payment is a lump sum payable at the end of the loan term. It reduces monthly repayments because you are not repaying the full loan during the term — but you must pay the balloon at the end (by refinancing, trading in, or paying cash). Monthly repayments are lower but total interest paid is typically higher.
APR
The APR annualises the total cost of the loan including fees, making it easier to compare different products. A loan with a 7% headline rate and £500 in fees may have a higher APR than a 7.5% loan with no fees. Always compare APRs, not just the headline interest rate.
| £40k loan · 5yr | Rate | Monthly | Total interest |
|---|---|---|---|
| Bank / building society (good credit) | 7–9% | £792–£830 | £7,520–£9,800 |
| Online lender | 8–13% | £812–£910 | £8,720–£14,600 |
| Dealer finance | 10–16% | £849–£970 | £10,940–£18,200 |
| Personal loan (unsecured) | 10–20% | £849–£1,059 | £10,940–£23,540 |
Comparing HP, PCP, personal loans, leases, and salary sacrifice car schemes
| Finance type | Best for | Typical APR | Own the car? |
|---|---|---|---|
| Hire Purchase (HP) | Spreading the full cost, then keeping the car | 7–11% | Yes — at the final payment |
| Personal Contract Purchase (PCP) | Lower monthly payments, flexibility at the end | 7–13% | Only if you pay the optional final payment |
| Personal loan (unsecured) | Buying outright, older or private-sale cars | 7–15% | Yes — immediately |
| Dealer finance | Convenience only — usually costlier | 10–16% | Depends on HP/PCP |
| Business contract hire / lease | Businesses — deductible rentals, no ownership | 6–10% | No — hand it back |
| Salary sacrifice (EV) | Employees — pre-tax electric-car lease | Embedded in lease | No — employer leases it |
HP vs PCP
Hire Purchase splits the whole price (less deposit) into equal monthly payments; once the last one clears you own the car. Personal Contract Purchase defers a large chunk of the value — the Guaranteed Minimum Future Value, or optional final payment — to the end, so monthly payments are lower, but you only own the car if you pay that balloon. At the end of a PCP you can pay the final payment, hand the car back, or part-exchange any equity into a new deal.
Personal loan vs finance
An unsecured personal loan from a bank or building society lets you buy the car outright, so you own it from day one and can sell it whenever you like — useful for private-sale or older cars that dealers will not put on HP or PCP. Rates depend on your credit score rather than the car. HP and PCP are secured on the vehicle, so they can be cheaper for newer cars but the lender can repossess if you default.
How salary sacrifice works, how company-car BIK is charged, and why EVs are especially advantageous
How a salary sacrifice car scheme works
A salary sacrifice car scheme is an arrangement between you (the employee), your employer, and a leasing company. You agree to give up a fixed amount of gross (pre-tax) salary and your employer provides a leased car in return. Because the sacrifice comes out of gross pay, you save income tax and National Insurance on the amount sacrificed, and the deduction is taken from your salary each pay period.
How company-car BIK is charged
The car is a taxable Benefit-in-Kind, so you pay company-car tax on the "appropriate percentage" of the car's P11D list price. For petrol and diesel cars that percentage is set by CO2 emissions and can reach 37%, which cancels out most of the saving. For a fully electric car it is only 4% in 2026/27 (rising to 5% in 2027/28), so the tax cost of the benefit is tiny.
Why EVs win — the OpRA carve-out
Since April 2017 the Optional Remuneration Arrangement (OpRA) rules removed the tax advantage from most salary-sacrifice benefits. Ultra-low-emission cars emitting 75 g/km CO2 or less are specifically exempt from OpRA, so an electric car keeps the full income-tax and National-Insurance saving on the sacrificed salary. Combined with the 4% BIK rate, that makes an EV on salary sacrifice one of the cheapest ways for an employee to run a new car.
Example: EV salary sacrifice for a higher-rate taxpayer
| £40,000 EV · £6,000/yr gross sacrifice | Pay from net salary | Salary sacrifice (EV) |
|---|---|---|
| Amount taken from salary | £6,000 net | £6,000 gross |
| Income tax + NI saved (42% band) | — | £2,520/year |
| Company-car BIK tax (4% × £40,000 P11D, 40%) | — | £640/year |
| Net saving vs paying from net pay | — | ≈ £1,880/year |
Pre-approval, negotiating with dealers, broker vs direct, and avoiding traps
Get pre-approved before visiting the dealer
The most powerful step: get pre-approved for a car loan from your bank or building society before setting foot in a dealership. Pre-approval gives you: (1) a firm rate to negotiate against; (2) confidence in your budget; (3) protection from dealer finance pressure. Show the dealer your pre-approved rate — they will often match or beat it to win the finance commission.
Dealer finance — what you need to know
Dealers earn commission from finance companies for signing customers up to their products. This creates an incentive to maximise your interest rate. The dealer may quote an "0% finance offer" — these are typically manufacturer-subsidised rates on specific models, and the car price is often inflated to compensate. Always compare the total cost (car price + interest) not just the rate.
APR trap
Lenders must display a APR, but it is calculated on a specific amount (£30,000 over 5 years in the United Kingdom) — different from your actual loan. Use this calculator to compute the effective APR on your specific loan amount and term, including any fees.
Extra repayments save significant money
Most secured car loans allow extra repayments without penalty. Even £50–£100 extra per month can save hundreds to thousands in interest. Use the Detailed mode to see your exact saving. Check your loan contract for early repayment fees before making extra payments — most standard secured loans have none.
Frequently asked Frequently asked questions
What is the best car finance option in United Kingdom 2026-27?
For personal use: Hire Purchase or a personal loan from a bank or building society typically offers the lowest rates (7–11% APR for good credit), or PCP if you want lower monthly payments and flexibility at the end. Get pre-approved before visiting a dealer — this gives you negotiating power. Avoid dealer finance unless the manufacturer is subsidising a genuinely low rate. For a higher-rate taxpayer buying an electric car, an employer salary sacrifice scheme is often the cheapest option overall — the EV company-car BIK is only 4% for 2026/27 and you save income tax and NI on the sacrificed salary.
What is a APR and why does it matter?
The APR combines the interest rate and most fees into a single annualised figure, making it easier to compare loans. A loan with a 7% interest rate and a £500 establishment fee can have a higher APR than an 8% loan with no fees. in the United Kingdom, lenders must display the APR calculated on a £30,000 loan over 5 years. Use this calculator to see the APR for your specific loan size and term.
Should I use a optional final payment on my car loan?
A optional final payment (residual) reduces monthly repayments but means you owe a lump sum at the end of the loan term. Total interest paid is typically higher with a balloon because you are repaying the principal more slowly. Balloons are useful for cash-flow management (business use) or if you are confident you will trade in the car before the balloon is due. For personal loans, avoiding a balloon and choosing a shorter term often saves more in interest than the monthly payment reduction is worth.
Can I claim a car loan as a tax deduction in the United Kingdom?
For a personal car: no — you cannot deduct the interest or repayments on a personal car loan. For business vehicles: interest on Hire Purchase and rentals on business contract hire are deductible, and capital allowances can be claimed on the car (a 100% first-year allowance for new fully electric cars, otherwise 18% or 6% writing-down allowances by CO2). Salary sacrifice gives an employee pre-tax treatment on an electric-car lease. Always speak to an accountant before structuring business vehicle finance — the rules around company-car BIK, VAT recovery, and capital allowances can be complex.
Where these figures come from
Debt and credit figures on this page come from the Financial Conduct Authority (consumer credit rules), The Bank of England (rate data), and MoneyHelper — the UK's government-backed money-guidance service operated by the Money and Pensions Service (MaPS).
- Consumer credit rules — FCA — Consumer credit.
- Bank Rate (affects variable-rate debt) — Bank of England — Bank Rate.
- Debt help & free advice — MoneyHelper — Dealing with debt.
- Student loan repayment — GOV.UK — Repaying your student loan.
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.