Financing a car with Personal Contract Purchase (PCP)

A simple way to understand a PCP agreement is to compare it to renting a property with the option to buy. When renting, you receive the property in a certain condition and are expected to return it in similar condition. Typically, you'll also pay a deposit upfront before moving in.

A PCP agreement works in a somewhat similar way. You typically pay a deposit, make monthly payments while using the vehicle, and must return the car in an acceptable condition and within the agreed mileage limits if you decide not to keep it. The key difference is that PCP also gives you the option to buy the vehicle at the end of the agreement by paying the final balloon payment.

You might not be familiar with this term, so to keep it simple, a balloon payment is a large lump sum due at the end of the agreement if you wish to keep the vehicle.

It is generally much larger than the regular monthly payments, and although it is clearly outlined in the agreement, many people mainly focus on the monthly cost and do not fully appreciate the size of the final payment until the end of the deal approaches.

How Is the Balloon Payment Calculated?

The finance company estimates how much the vehicle is likely to be worth at the end of the agreement. This is known as the Guaranteed Future Value (GFV), sometimes referred to as the Guaranteed Minimum Future Value (GMFV).

Several factors influence the size of the balloon payment, including the vehicle's purchase price, the length of the agreement, the agreed annual mileage, and the expected depreciation rate of that particular make and model. A lower mileage allowance means the car is expected to be worth more at the end, so the GFV (and your balloon payment) will be higher. A higher mileage allowance results in a lower GFV but higher monthly payments. It's a balancing act, and the finance company sets the terms.

Finance companies generally calculate the GFV cautiously to reduce their risk if the vehicle loses value faster than expected. However, actual used-car prices can fluctuate, so the final market value of the car may be higher or lower than the estimate.

Your Three Options at the End of a PCP Agreement

So, let's say the finance company determines the vehicle's value will be £10,000 at the end of the term. You will have three options once the agreement has ended:

1. Pay the £10,000 and keep the car.
2. Return the car with no further "finance payments". Emphasis on the "finance payments"; you will see why later.
3. Use any equity in the car to enter into a new PCP agreement.

The Interest Trap You Might Not Have Noticed

Remember earlier when we mentioned that you pay interest on £27,000? Even though your monthly payments may only be reducing part of that balance, the interest on a PCP agreement is generally calculated on the entire amount financed, including the balloon payment.

In our example, £27,000 is financed. While your monthly instalments may only reduce the portion representing the car's depreciation, interest is still charged on the full balance — including the £10,000 balloon that sits at the end of the agreement. This is one of the most misunderstood aspects of PCP finance.

In other words, you pay interest on the balloon amount during the agreement — even if you later return the car and never actually pay that balloon payment.

Some dealers offer 0% interest PCP agreements, but as with most things in life, the cost is often recovered elsewhere — for example, through a higher vehicle price, reduced room for negotiation, or manufacturer incentives built into the deal. It's important to consider the overall cost, not just the interest rate.

It's also important to note that the Financial Conduct Authority has been investigating the historical use of discretionary commission arrangements (DCAs) in car finance agreements. These arrangements enabled dealers to influence the interest rates offered to customers in exchange for higher commission.

The regulator has been reviewing tens of millions of motor finance agreements made between 2007 and 2024, and the outcome could potentially lead to a large industry-wide compensation scheme. If you took out PCP or HP finance during that period, you may want to keep an eye on developments as many agreements could potentially qualify for redress.

This is the most important part; you should pay the most attention to this section.

Damage Charges When You Return a PCP Car

You will be responsible for any damage exceeding fair wear and tear, meaning you may have to pay for scratches, dents, or other damage that falls outside the acceptable standard. We strongly recommend addressing any damage before you return the car (if you choose to do so), as repairing it yourself is often cheaper than paying the finance company's charges.

Normal wear and tear from everyday use is generally acceptable, but it is important to read your agreement carefully. The British Vehicle Rental and Leasing Association publishes fair wear and tear guidelines that many finance companies follow. It's worth checking whether your lender uses these as their benchmark.

Excess Mileage: The PCP Cost That Stings the Most

Now, this is where many people get caught out, so make sure you are very clear about the mileage allowance.

Most PCP agreements include a set mileage limit per year. If you go over this allowance and return the vehicle at the end of the agreement, you will typically be charged an excess mileage fee. These charges usually range from about 5p to 20p per mile or more, depending on the vehicle and the finance provider. For instance, some agreements with lenders such as Santander Consumer Finance have included excess mileage charges of around 14.9p per mile (excluding VAT).

It might not sound like much per mile, but it adds up quickly.

Let's look at a TRDG example so you can see how significant the impact can be:

It's not unusual for someone entering a PCP agreement to feel trapped in it.

This is because securing funds for the balloon payment at the end is not always easy. Returning the car means that the person may no longer have access to a vehicle. As a result, the third option, using any equity in the car to enter into a new PCP agreement, often becomes the most likely choice.

The balloon payment is typically set close to the vehicle’s expected market value when the agreement ends, meaning the car may have some equity.

In our example, the Guaranteed Future Value (GFV) is £10,000, and let's say the actual market value at the end of the agreement is £12,500.

£12,500 − £10,000 = £2,500.

That £2,500 can be used as a deposit for a new car through a new PCP agreement.

So, the cycle continues.

PCP agreements are designed to make rolling into a new agreement very common. The finance company retains a customer, the dealer makes another sale, and you start the process again, often on a more expensive car with a larger finance amount and more interest.

Industry data confirms that PCP remains the dominant car finance product for private new car buyers in the UK, and a large proportion of customers prefer to use any available equity as a deposit for their next vehicle rather than paying the balloon payment or simply returning the vehicle.

Under the Consumer Credit Act 1974, you have the right to return the car via a process called Voluntary Termination, provided you have paid at least 50% of the total amount payable under the agreement.

This is an important distinction: it refers to 50% of the total amount payable, including all interest, fees, and the balloon payment, not 50% of the car's value or the original loan amount. With a PCP agreement, since the balloon payment is part of the total amount payable, many customers do not reach the 50% threshold until quite late into the agreement.

If you haven't reached the 50% mark, you can still terminate by making a lump sum payment to reach that level. Once you've met the threshold and the vehicle is in reasonable condition, you can hand the car back with no further finance payments to make.

Voluntary Termination vs Voluntary Surrender: Know the Difference

This is important because getting these two confused could cost you thousands.

Voluntary termination is your legal right under Section 99 of the Consumer Credit Act 1974. Once you've paid 50% of the total amount payable and the car is in reasonable condition, you can return the vehicle and owe nothing further under the agreement.

Voluntary surrender is different. It is not a statutory right under the Act. You can agree with the finance company to return the car at any point in the agreement, but the lender will then sell the vehicle, often through an auction or trade channel, and you will remain liable for any shortfall between the sale proceeds and the remaining balance owed. That shortfall could run into thousands of pounds.

Always check where you stand before taking action. If you're close to the 50% threshold, it may be worth making a few more payments to reach it and exercise voluntary termination properly, rather than surrendering the vehicle and being left with a debt and no car.

Remember that with either route, you may still be liable for any damage beyond fair wear and tear.

The Real Debt Guy is a qualified financial adviser and a UK debt expert. The information in this article is considered to be true and correct at the publication date.