Answer-first summary
Cash is always the cheapest way to buy a car because you pay no interest. If you need to spread the cost, hire purchase (HP) gives you a simpler deal than personal contract purchase (PCP) and you will definitely own the car at the end. PCP can suit you if you want lower monthly payments and plan to change cars regularly, but the total cost is higher and the rules are stricter.
This article is a plain-English explanation of all three options, with worked cost examples. It is not personal financial advice. For impartial regulated guidance, visit MoneyHelper or the FCA motor finance information page.
Who this guide is for and inclusion criteria
This guide covers private UK buyers of new or used cars who are weighing up PCP, HP or paying cash outright. It does not cover personal contract hire (PCH, also called leasing), business finance or conditional sale agreements, though it notes where those differ. No specific car model is recommended here. The worked examples use a £20,000 used car unless stated otherwise.
Top picks: how each option works
Paying cash
You hand over the full purchase price and own the car immediately. There is no interest, no monthly payment and no finance agreement to sign. That makes it the lowest total cost every time.
Why it makes the list: Simplest structure, lowest total outlay, no risk of repossession.
The catch: You need the full amount available upfront. Money tied up in a car is not earning savings interest elsewhere. MoneyHelper advises buyers to weigh that trade-off for themselves.
Total cost for a £20,000 car: £20,000. No further payments.
Hire purchase (HP)
HP is a straightforward credit agreement. You pay a deposit, then fixed monthly payments that cover the full value of the car plus interest. At the very end you pay a small option-to-purchase fee, typically around £100, and you own the car outright. MoneyHelper explains HP in full.
There are no mileage limits with HP, which is a meaningful advantage over PCP if you drive a lot.
Why it makes the list: You are guaranteed to own the car at the end. No balloon decision, no mileage penalty.
The catch: Monthly payments are higher than PCP on the same car because you are paying off the entire value, not just part of it.
Illustrative HP example (not a quote; APR is representative and will vary by lender and credit profile):
A £20,000 car, £3,000 deposit, £17,000 financed over 48 months at a representative 9% APR. Monthly payment roughly £423. Total interest roughly £3,300. Total cost to own: approximately £23,300.
Personal contract purchase (PCP)
PCP is more complex. You pay a deposit, then monthly payments that only cover part of the car’s value. The part you are not paying off each month is called the Guaranteed Minimum Future Value (GMFV), more commonly known as the balloon payment.
MoneyHelper’s PCP guide describes a PCP as a contract that gives you access to a car, with the option to buy it at the end.
PCP agreements carry annual mileage limits set at the start of the contract. Exceeding them triggers a per-mile excess charge. Following FCA rule changes that took effect in 2025, that excess charge must appear on the front page of your agreement, not buried in the small print.
Why it makes the list: Lowest monthly payments of the three finance routes, and flexible at the end of the term.
The catch: Highest total cost if you keep the car. Mileage limits apply. You must return the car in acceptable condition if you hand it back.
Illustrative PCP example (not a quote; APR is representative):
A £20,000 car, £3,000 deposit, GMFV set at £7,000, leaving £10,000 to repay in monthly payments over three years at 6% APR. Monthly payment roughly £350. Total interest roughly £2,500. If you then pay the £7,000 balloon to own the car, total cost: approximately £22,500. Add any optional purchase fee (typically £100 to £250) on top.
If you hand the car back instead, you pay nothing further, assuming you are within your mileage limit and the car is in acceptable condition.
Important: PCP and HP are regulated credit agreements under the Consumer Credit Act 1974 and the FCA’s Consumer Credit rules. The car can be repossessed if you do not keep up repayments. You do not own the vehicle until the final payment is made.
Comparison table
The table below uses a £25,000 car over four years. Figures are illustrative and are not quotes.
| Method | Total paid | Interest paid | Own the car? | Mileage limit? |
|---|---|---|---|---|
| Cash | £25,000 | £0 | Yes, from day one | No |
| HP (9% representative APR) | £28,992 | £3,992 | Yes, after final payment | No |
| PCP (8% representative APR, keeping car) | £31,680 | £6,680 | Yes, after balloon payment | Yes |
PCH (leasing) is not covered in this guide but for context: on the same car the use cost would be around £18,300 over four years with no ownership at the end.
Running costs at a glance
Whichever way you pay for the car, the ongoing costs are the same: fuel or charging, insurance, VED (road tax) and servicing. The finance method only changes whether you also have a monthly repayment and interest on top.
For a fuller picture of what a car costs to run once you have bought it, our guide to comparing real running costs is a useful next step.
For new car pricing context, see our piece on UK new car prices.
Budget and alternative options
What happens at the end of the contract
At the end of a PCP you have three choices:
- Pay the balloon (GMFV) plus any option-to-purchase fee and own the car.
- Hand the car back and walk away, provided you are within your agreed mileage and the car is in acceptable condition.
- If the car is worth more than the GMFV, use that equity as a deposit on a new PCP deal.
Option three is why many people never actually own a PCP car. They roll from one PCP straight into the next, always paying but never arriving at ownership. That suits some people, but it is worth knowing it is happening.
At the end of HP: You pay the option-to-purchase fee, usually around £100, and the car is yours. No balloon, no mileage penalty, no decision required.
If you paid cash: The car has been yours since day one.
Your statutory right to hand the car back early
This applies to both PCP and HP, and many buyers do not know about it.
Section 99 of the Consumer Credit Act 1974 gives you the right to voluntarily terminate a PCP or HP agreement once you have paid at least 50 per cent of the total amount payable. That total includes the deposit, all monthly payments and, in a PCP, the balloon payment. Because the balloon is included in that 50 per cent threshold, you often need to be well into the monthly term before you qualify.
The car must be returned in reasonable condition, which means fair wear and tear for its age and mileage. It does not mean showroom condition.
This right does not apply to PCH or leasing, nor to a cash purchase.
What to avoid: known pitfalls and common sales traps
New disclosure rules you should know about
Since 2025, FCA rules require dealers to show the total amount payable in the same font size as the headline monthly payment. No more tiny-print balloons. The 50 per cent voluntary termination threshold must also appear on the agreement, with the exact pound figure stated.
The FCA banned discretionary commission arrangements (DCAs) on 28 January 2021. Under the old system, some brokers could quietly raise your interest rate to earn more commission without telling you. That practice is now prohibited.
The motor finance mis-selling redress scheme
This is significant context if you took out a PCP or HP agreement before November 2024.
On 30 March 2026, the FCA confirmed an industry-wide redress scheme covering PCP, HP and conditional sale agreements taken out between 6 April 2007 and 1 November 2024. The scheme is intended to compensate consumers where lenders failed to properly disclose commission arrangements. Around 12.1 million agreements are in scope, with average redress estimated at £829 per agreement.
If you think you may have been affected, check the FCA’s motor finance update page and MoneyHelper’s mis-sold car finance guide.
Note: The Financial Ombudsman Service has previously extended complaint handling deadlines for HP, PCP and conditional sale agreements. Check current deadlines on the FOS website before submitting a complaint, as dates have changed more than once.
What to check before you sign anything
- Total amount payable. Not just the monthly figure. Add up the deposit, every monthly payment, the balloon if applicable and any option-to-purchase fee. That is what the car actually costs you.
- APR versus flat rate interest. A dealer may quote a flat rate, which looks lower than the APR. Always compare on APR.
- Mileage limit on PCP. Set it honestly. Excess mileage charges of 6p to 15p per mile add up fast. Underestimating by 5,000 miles a year over three years could add £900 to £2,250 to your final bill.
- The GMFV is not guaranteed to be fair market value. The lender sets it. The car may be worth more or less in the real market at the end of the term. Do your research before deciding whether to pay the balloon or hand it back.
- FCA authorisation. Any dealer or broker arranging finance must be FCA authorised. You can check at register.fca.org.uk. If they are not on the register, walk away.
Motor Mike’s verdict by use case
You have the cash available and plan to keep the car long term: Pay cash. Lowest total cost, simplest outcome, no risk of repossession.
You want to finance the purchase and keep the car at the end: HP is the cleaner option. Higher monthly payments, but no balloon decision, no mileage anxiety and you will definitely own it.
You want lower monthly payments and expect to change cars every two or three years: PCP can work, but go in knowing the total cost is higher than HP, mileage limits are real, and you need a plan for the balloon if you change your mind about handing it back.
You are unsure what you can afford: Use the total cost figure, not the monthly payment, as your comparison point. For a fuller picture of what a car costs to run once you have bought it, our guide to comparing real running costs is a useful next step.
What to do next
Before you sit down with a finance manager, work out the total amount payable on any deal they offer. Ask for the figure in writing. Check the mileage limit if it is PCP. Check the dealer or broker is FCA authorised. And if you took out motor finance before November 2024, check whether you are in scope for the redress scheme.
For impartial help, MoneyHelper at moneyhelper.org.uk is free, independent and government-backed. Use it.
PCP and HP are regulated credit agreements. The car can be repossessed if you do not keep up repayments. You do not own the vehicle until the final payment is made. This article is information only and is not personal financial advice. Consult a qualified financial adviser if you need advice tailored to your circumstances.
