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How to Use the Car Finance Calculator
- Pick your finance type — Hire Purchase (HP) and Personal Loan use the same amortisation; Personal Contract Purchase (PCP) adds a balloon payment at the end.
- Enter the car price — type the full on-the-road price of the vehicle you're considering.
- Enter your deposit — the amount you plan to put down upfront. A larger deposit cuts both the monthly payment and the total interest.
- Set the loan term — typically 24, 36, 48, or 60 months. Shorter terms cost less overall but mean higher monthlies.
- Enter the APR — the Annual Percentage Rate quoted by your lender. This is the all-in cost of borrowing, including mandatory fees.
- Add a balloon (PCP only) — the Guaranteed Minimum Future Value (GMFV) at the end of the term. The balloon field appears when you pick PCP.
- Click "Calculate" — you'll see your monthly payment, amount financed, total repayable, and total interest. For PCP you'll also see the balloon broken out.
How UK car finance actually works
Car finance in the UK falls into three main categories, and the right choice depends on whether you want to own the car at the end, how often you change vehicles, and how tight your monthly budget is.
Hire Purchase (HP) is the most straightforward option. You put down a deposit, then pay fixed monthly instalments over a set term — typically 24 to 60 months. Each payment reduces the outstanding balance until, at the end of the term, you pay a nominal "option to purchase" fee (usually £0 to £150) and the car is yours. HP is secured against the vehicle, which means the lender can repossess it if you fall behind, but it also means APRs are typically lower than on unsecured personal loans.
Personal loans work like HP from a maths point of view — the same amortisation formula applies — but the key difference is that the loan isn't secured against the car. You borrow the money, buy the car outright, and own it from day one. If you default, the lender pursues the debt the same way as on any other personal loan rather than simply repossessing the vehicle. APRs on personal car loans tend to be slightly higher than HP for similar credit profiles, but you're free to sell the car at any point without settling a finance agreement first.
Personal Contract Purchase (PCP) is the option that dominates new-car sales in the UK, and it works differently. Instead of paying off the full value of the car, your monthly payments cover the depreciation — the difference between the purchase price and a Guaranteed Minimum Future Value (GMFV), also called the balloon payment. At the end of the agreement you have three choices: hand the car back and walk away (subject to fair wear, tear, and a contracted mileage cap), pay the balloon to keep it, or use any equity above the balloon as a deposit on your next PCP deal. Monthly payments are lower than HP on the same car because you're financing a smaller amount, but if you want to own the car you eventually have to settle that large final balloon.
Whichever route you pick, the lender must quote you a representative APR under FCA rules — the rate at least 51% of successful applicants receive. Your actual rate depends on credit history, loan size, term, and the car's age. Used-car finance typically carries a 1 to 3 percentage-point premium over new-car finance because the lender's collateral depreciates faster.
HP vs PCP: which is better?
The honest answer is: it depends on how you plan to use the car and how long you'll keep it. HP wins on total cost if you intend to keep the car for at least the length of the agreement plus a few years afterwards. You pay interest on the full amount, but once the final payment clears, the car is fully yours with no further commitment — and every mile you drive it after that is effectively free motoring bar fuel, insurance, and maintenance.
PCP wins on monthly budgeting and flexibility. Because you're only financing the depreciation, the monthlies on a £25,000 car on PCP can be 30% to 40% lower than the equivalent HP agreement. That lets you drive a newer, higher-spec vehicle for the same outlay. At the end of three or four years, you simply hand it back and start a new deal. The downside is that if you keep handing cars back, you'll never own one — you'll pay monthlies forever, and over a lifetime that can cost significantly more than HP-and-hold.
A practical middle-ground: take PCP for the monthly flexibility, then at the end of the term decide based on the car's actual market value. If the trade-in value is higher than the balloon, you've built equity and can roll it into the next deal. If it's lower, hand the car back — you're protected by the GMFV. The calculator above lets you model both HP and PCP side by side on the same car so you can see the monthly-cost difference before you commit.
How to get the best UK car finance rate in 2026
The headline APR you see in dealer adverts is rarely the rate you'll actually be offered. Lenders quote a representative APR, which only 51% of successful applicants need to receive, so roughly half of approved customers get a worse rate. Four factors make the biggest difference to the number you end up paying: credit score, deposit size, loan term, and whether you're buying new or used.
A credit score above 720 on the main UK bureaus (Experian, Equifax, TransUnion) typically unlocks the best-advertised rates. Below 600, expect subprime pricing — often double the representative APR. Check your score free before you apply, and correct any errors on the file at least 30 days beforehand. A single missed mobile-phone payment in the last year can add 2 to 4 percentage points to your car finance APR.
A deposit of 20% or more shifts you into a better risk tier with most lenders, and on PCP it directly lowers the balance that interest is charged on for the full term. Part-exchanging an older car as deposit counts the same as cash. If you have a choice between a longer term at a lower monthly or a shorter term at a higher monthly, run both through the calculator — the shorter term almost always wins on total interest, sometimes by £1,000 to £3,000 on a typical £15,000 finance amount.
Finally, shop around. Dealer finance is convenient but often 1 to 3 percentage points more expensive than a direct deal from a high-street bank, credit union, or online broker like MoneySupermarket or Zuto. Get an in-principle decision from an independent lender first, then use that number to negotiate with the dealer. Dealers earn commission on the finance they sell, so there's usually room to match or beat a competing quote.
How is a car finance payment calculated?
Car finance payments use the standard amortisation formula: M = P x r x (1+r)^n / ((1+r)^n - 1), where P is the loan amount (car price minus deposit), r is the monthly interest rate (APR divided by 1200), and n is the total number of monthly payments. For PCP, the formula is adjusted to account for a deferred balloon payment at the end of the term, so monthly interest is charged on the full outstanding balance each month until the balloon is settled or the car is handed back.
What is APR on car finance?
APR (Annual Percentage Rate) is the total cost of borrowing expressed as an annual percentage, including the interest rate and any mandatory fees. UK lenders must display a representative APR that at least 51% of successful applicants will receive. Typical car finance APRs in 2026 range from around 6% to 15% for borrowers with good credit, and can climb to 20% or more for subprime borrowers.
What is PCP finance?
PCP (Personal Contract Purchase) is a popular UK car finance option with lower monthly payments because you only finance the depreciation rather than the full price. At the end of the agreement, you can return the car, pay a balloon payment to own it outright, or part-exchange any equity for a new vehicle on another PCP deal.
How much deposit should I put down on a car?
A larger deposit reduces your loan amount and lowers both monthly payments and total interest. Most lenders recommend at least 10% of the car's value as a deposit. Putting down 20% or more can help you secure a better interest rate and significantly reduce the overall cost of the loan. On PCP deals, a higher deposit also reduces the amount you're charged interest on across the full term.
Can I pay off car finance early?
Yes, under the Consumer Credit Act you have the right to repay car finance early in the UK. The lender may charge up to 58 days of additional interest as an early settlement fee, but you will save on all future interest payments. Request an early settlement figure from your lender to see the exact amount needed to close the agreement.
What is the difference between HP and PCP?
HP (Hire Purchase) spreads the full car cost over fixed monthly payments, and you own the car once all payments are complete. PCP has lower monthly payments because you only pay for the car's depreciation, but there is a large final balloon payment if you want to keep the vehicle. HP costs less overall if you intend to keep the car long-term; PCP is more flexible if you like to change cars every three or four years.
What's the average car finance APR in the UK in 2026?
Average UK car finance APRs in 2026 sit between 6% and 12% for borrowers with good credit, and 15% to 25% for higher-risk customers. Rates vary by lender, loan term, deposit size, and the car's age — new cars and shorter terms typically attract lower APRs. Always compare the representative APR across at least three lenders, and check whether the deal is secured (HP/PCP) or unsecured (personal loan) before you sign.
Can I get car finance with bad credit in the UK?
Yes, specialist subprime lenders offer UK car finance to customers with poor credit histories, though APRs are typically much higher — often 20% to 40%. Putting down a larger deposit significantly improves your chances of approval and reduces the total cost of the agreement. HP agreements secured against the vehicle and guarantor loans are the most common routes for bad-credit borrowers, and clearing the agreement on time can rebuild your credit score.
How does the balloon payment work on PCP finance?
The balloon payment on PCP — also called the Guaranteed Minimum Future Value or GMFV — is a large final sum you must pay if you want to keep the car at the end of the agreement. It reflects the car's predicted trade-in value based on the term and your contracted annual mileage. You can instead return the car with nothing further to pay (subject to condition and mileage caps) or use any equity between the balloon and the car's actual value as a deposit on your next PCP deal.
Is PCP or HP cheaper overall?
HP is usually cheaper overall if you plan to keep the car, because although the monthly payments are higher, you own the vehicle outright at the end with nothing further to pay. PCP has lower monthlies during the term, but you either owe the balloon payment to keep the car or hand it back with nothing to show for years of payments. If you change cars every three or four years, PCP often makes monthly budgeting easier despite costing more in absolute interest terms.
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