Mistakes to Avoid When Signing a PCP Car Finance Deal

Personal contract purchase (PCP) is now the dominant way to fund new cars in the UK, and each year more than two million new and used vehicles are financed through some form of motor finance. The structure is the same at nearly every dealership: a deposit, fixed monthly payments and one large figure left until the end. That final figure, and the conditions attached to it, is where most of the traps sit. This article walks through the mistakes that catch buyers out and what to check before you sign.

What a PCP Deal Actually Involves: Deposit, Monthly Payments and the Balloon

PCP is a form of hire purchase, which means the finance company buys the car and you pay for it in instalments. What makes PCP different is that your monthly payments do not cover the full price of the car. They cover the amount it is expected to lose in value during the contract, plus interest.

The deal has three parts:

• A deposit, often around 10% of the car’s price, though the amount varies. A larger deposit reduces what you finance and lowers the monthly figure.
• Monthly payments, usually fixed, typically over terms of 24 to 48 months depending on the lender. They cover the car’s expected drop in value plus interest.
• A balloon payment, also called the optional final payment or Guaranteed Future Value (GFV). This is the amount the lender sets, at the start, that you pay if you want to own the car.

The balloon is usually far larger than a monthly payment, and interest is charged on the whole amount financed, including the deferred balloon, not just the part you pay month by month. The finance company owns the car, or retains a legal interest in it, until that final payment is made. Miss payments and it can repossess the vehicle.

At the end you choose: pay the balloon and keep the car, hand it back, or roll any equity into a new agreement. Equity here means the difference between what the car is actually worth and what the balloon says it is worth.

Mistake 1: Comparing Deals on Monthly Payments Alone

PCP’s headline appeal is a lower monthly payment than hire purchase or a personal loan on the same car. That lower figure exists because a large slice of the car’s value is deferred to the end, not because the deal is cheaper overall. Interest accrues on the entire amount, including the balloon.

Manufacturers often heavily support new car offers with fixed rates of interest, which can make a dealership’s monthly figure look especially attractive while saying little about the total cost. PCP also remains less prevalent in used car sales, where deals are put together differently.

What to do instead:

• Ask for the total amount payable over the whole agreement, including the deposit, all monthly payments, interest, charges and the balloon.
• Compare that total across finance types, not just across PCP quotes from different dealers.
• Check the interest rate quoted against our guide to representative APR, which covers how advertised rates are set and why the figure on your own quote can turn out different.

Handy tip

Ask for the total amount payable over the full agreement before discussing monthly figures. The monthly payment is the easiest number to make look small and the worst one to compare on.

Mistake 2: Underestimating Your Annual Mileage

Your PCP agreement sets a mileage limit at the start. The lender uses your agreed mileage to estimate what the car will be worth at the end, so the limit is baked into the price from day one. Exceed it and you face an excess mileage charge, which applies if you hand the car back. The rate per mile varies by lender and is set out in your agreement.

The mistake is estimating optimistically. A new job, a house move or a change in the school run can push mileage well past the figure written on the form.

What to do instead:

• Work out your real average from odometer readings or service records rather than rounding down.
• Price the difference between mileage bands before signing. A higher allowance raises the monthly payment modestly; an excess charge across thousands of miles can cost far more.
• If your driving is genuinely unpredictable, say so at the start. Setting a realistic limit up front is easier than trying to renegotiate one later.

Mistake 3: Ignoring the Vehicle Condition Rules at the End

If you return the car, it must meet the condition standards in your agreement. Damage beyond fair wear and tear risks additional charges, alongside any excess mileage. Charges for scuffed alloys, dents or interior wear vary by lender, so the standard that matters is the one printed in your contract, not the one a salesperson summarises on the forecourt.

What to do instead:

• Read the condition section of the agreement before you sign, so you know what that lender counts as fair wear and tear.
• Keep the car serviced in line with the manufacturer’s schedule and repair minor damage before the handback inspection.
• Photograph the car’s condition before returning it, so you have a record if a charge is later disputed.

Mistake 4: Assuming You Will Have Equity in the Car

Equity is not a feature of PCP; it is a possible outcome. The balloon is set at the start from an estimate of the car’s future value, and that estimate is planned to come in below the car’s actual value, creating equity you can put towards your next car. That plan is not guaranteed and does not always occur. If the used car market moves against you, the car can be worth less than the balloon when the contract ends.

The trade-offs cut both ways. If the car is worth more than the GFV, you can use the difference as a deposit on your next agreement, or pay the balloon and own a car for less than its market value. If it is worth less, handing the car back avoids the depreciation risk entirely, because the lender absorbs the shortfall. The position is only painful if you want to keep a car worth less than its balloon, since you pay the figure in the contract either way.

Watch for the approach that often arrives before the contract ends. Customers who have built up equity are commonly contacted with offers of a new agreement, and the Financial Conduct Authority (FCA) has observed that this is a key driver of brand loyalty. Treat it as a sales moment: judge the new deal on its own total cost, not on the impression that money is coming back to you.

Mistake 5: Skipping the Fee and Commission Disclosures

For years, some lenders allowed car dealers, who act as credit brokers, to adjust the interest rate on a deal. The higher the rate, the more commission the dealer earned. Deals set up this way were called discretionary commission arrangements (DCAs), and the FCA banned the practice in 2021. Complaints about undisclosed commissions before the ban followed, and the FCA extended the deadlines for firms to respond to relevant complaints to December 2025 while it investigated.

The courts have since sharpened the point. In October 2024, the Court of Appeal held that it was unlawful, in the circumstances of three cases before it, for a dealer to receive commission from a lender, whether discretionary or a fixed percentage, without giving the customer sufficient information and obtaining their informed consent. After the Supreme Court gave its ruling on 1 August 2025, the FCA said it would consult on proposals for a single scheme covering the whole motor finance industry, to pay redress to customers who had been treated unfairly. It has also brought in a redress scheme under which consumers are expected to receive £7.5bn in total, though that scheme has been partly paused while legal challenges are dealt with.

The practical lesson for a buyer signing today is straightforward: commission can still exist, and disclosure matters. Ask the dealer how much commission they receive from the lender and how it is calculated, and read the pre-contract disclosure documents rather than skipping to the signature page. Terminology in motor finance is not standardised across the market, which the FCA has flagged as a source of confusion, so ask for plain definitions of anything unclear.

If you already hold a PCP agreement and suspect the commission was never properly disclosed, the FCA publishes a free template complaint letter. You do not need to pay a claims management company or law firm to complain for you.

PCP vs Hire Purchase: Which Trade-Offs Suit You

Hire purchase spreads the full price of the car across equal monthly instalments, so payments are typically higher than PCP on the same car, but you own the vehicle once the last payment is made. PCP keeps monthly payments lower and gives you three routes at the end of the contract, at the cost of a mileage limit, condition rules and a balloon you must fund if you want ownership.

	PCP	Hire purchase
What monthly payments cover	The car’s expected drop in value, plus interest	The full price, in equal instalments
Typical monthly cost	Lower	Higher on the same car
Ownership	Only after the balloon payment is made	Once the final instalment is paid
End-of-term conditions	Mileage limit and vehicle condition rules apply	No deferred balloon or future value estimate

Neither structure is better in the abstract. If you want predictable ownership with no end-of-term conditions, hire purchase fits better. If you value lower monthly payments and expect to change cars regularly, PCP can suit, provided you price the total cost and respect the mileage and condition terms.

Because the finance is secured on the vehicle, falling behind puts the car itself at risk as well as your credit file. Our guide to missing a personal loan payment explains arrears, defaults and your rights, and much of the process applies to motor finance too. For the wider picture of what security means when you borrow, see secured vs unsecured loans.

More on this site

• Representative APR Explained: how advertised rates work and what decides the rate attached to your own quote.
• Secured vs Unsecured Loans: what is at stake when borrowing is tied to an asset.
• Missing a Personal Loan Payment: arrears, defaults and your rights if repayments go wrong.

Your questions

What happens if I hand the car back at the end of a PCP agreement?
You return the vehicle to the finance company with no further liability for the balloon payment. However, excess mileage charges and charges for damage beyond fair wear and tear will often still apply, as set out in your agreement.

Who owns the car during a PCP agreement?
The finance company buys the car and retains a legal interest in it until the agreement ends. You only become the owner by making the final balloon payment and settling any other fees in the contract.

Are dealers still paid commission on car finance?
Discretionary commission arrangements, where dealers earned more by raising your interest rate, were banned by the Financial Conduct Authority in 2021. Other commission arrangements can exist, and the courts have emphasised that customers must be given sufficient information and consent to them.

What is the balloon payment in a PCP deal?
It is the lump sum you pay at the end if you want to own the car. The lender calculates it at the start of the agreement from its estimate of the car’s future value, and it is usually much larger than a monthly payment.