How to Challenge a Vehicle Finance Agreement in the UK

Most people in a PCP or hire purchase agreement don't know they have a statutory right to hand back their car and walk away. Not as a favour from the finance company. As a legal right — written into the Consumer Credit Act 1974.

Finance companies don't advertise this. When customers try to use it, they are often met with demands for shortfall payments, invented damage charges, and flat refusals to collect the vehicle. Most people back down. They shouldn't.

There are three main types of vehicle finance dispute in the UK. The first is voluntary termination under s.99 of the Consumer Credit Act — the “half rule.” The second is mis-selling through discretionary commission arrangements, which affected millions of car finance customers before January 2021. The third covers errors, incorrect charges, and credit file damage. All three have clear complaint and escalation routes. All three are winnable.

Section 1: Voluntary termination — the half rule

Under section 99 of the Consumer Credit Act 1974, you can terminate a PCP or hire purchase agreement at any time once you have paid at least 50% of the total amount payable (TAP). This is often called the “half rule.” It is a statutory right — not a clause the lender puts in as a favour, and not something they can remove from your agreement.

What counts as the total amount payable?

TAP is the full amount you are contracted to pay under the agreement. For a PCP deal, this means all of your monthly repayments plus the optional final balloon payment — even if you never intend to exercise the option to purchase. Finance companies sometimes try to calculate 50% without including the balloon, which understates what you have actually paid. That is incorrect. The balloon is part of TAP.

To check whether you have hit the threshold, ask your lender for a settlement figure and full statement of account. Under section 77 and section 78 of the Consumer Credit Act 1974, they are legally required to provide this information within 12 working days of a written request.

What happens when you terminate?

You return the vehicle. Your liability ends there — provided the car is in reasonable condition, reflecting normal wear and tear. You owe nothing further. No shortfall. No negative equity top-up. If you have already paid more than 50% of TAP, you cannot claim the excess back, but you have no further obligation.

If the lender claims the car has damage beyond fair wear and tear, they must itemise it specifically. A general damage charge added without inspection, or a refusal to put the assessment in writing, should be challenged immediately.

Common lender tactics — and what to do

The Financial Ombudsman Service handles voluntary termination disputes. If your lender refuses to honour a legitimate VT or pursues charges you do not owe, the FOS has upheld consumer complaints against lenders on exactly these grounds. Many settle before a formal decision is reached.

Section 2: Mis-selling and discretionary commission arrangements

If you took out a car finance agreement through a dealership before 28 January 2021, you may have been charged a higher interest rate than you should have been — and the dealer may have been paid a higher commission as a result.

What is a discretionary commission arrangement?

Under discretionary commission arrangements (DCAs), car dealers were given the power to set the interest rate on finance agreements — within a range set by the lender. The higher the rate the dealer set, the more commission they earned. Customers were not told that their rate had been inflated to benefit the dealer. In many cases, the dealer had a direct financial incentive to push the most expensive option rather than the most suitable one.

The Financial Conduct Authority banned this practice in January 2021 following a review that found it was causing harm to consumers. The FCA's review into historical motor finance mis-selling — published in January 2024 — has since become one of the most significant consumer finance investigations in years.

UK courts have ruled that lenders and dealers had obligations to disclose the commission arrangements to customers. A failure to disclose in circumstances where there was a clear conflict of interest may mean the agreement was not lawfully entered into, entitling the consumer to redress.

Who is affected?

Anyone who arranged car finance through a dealership before January 2021 may be affected — this is potentially millions of consumers. The issue is not confined to one lender or one type of agreement. PCP deals, hire purchase agreements, and other regulated consumer credit products are all within scope.

If your dealer arranged your finance before January 2021, you may be entitled to redress. You do not need to prove you were specifically targeted — the failure to disclose the commission arrangement may be enough.

What to do

Start by complaining directly to your finance company. Reference the FCA's motor finance review and the failure to disclose the commission arrangement at the time your agreement was set up. The lender must respond within 8 weeks.

If the lender rejects your complaint or does not respond in time, escalate to the Financial Ombudsman Service within 6 months of their final response. The FOS has been actively handling DCA complaints and the volume of cases has shaped FCA and FOS policy in this area.

The legislation underpinning these claims includes the Financial Services and Markets Act 2000 and the FCA's Consumer Credit sourcebook (CONC), which sets out the conduct standards lenders and dealers were required to follow.

Section 3: Disputing charges and errors on your agreement

Not every vehicle finance dispute is about voluntary termination or mis-selling. A large number of complaints involve incorrect charges, errors on default notices, and damage to credit files that should never have happened.

Incorrect default notices

A creditor cannot issue a valid default notice without complying precisely with the requirements of the Consumer Credit Act 1974. If a default notice contains errors — wrong figures, wrong dates, wrong prescribed terms — it may not be enforceable. Challenge it in writing and request a copy of all information they hold about the account under s.77/78 CCA.

Charges added after a payment dispute

If you disputed a payment and the lender continued to add late payment charges or default fees during the dispute period, those charges may be unlawful. Write to the complaints team citing the FCA's CONC rules on fair treatment of customers in arrears (CONC 7). The FCA requires lenders to treat customers fairly and not to take steps that would make a situation worse.

Credit file damage from a disputed account

If a lender has recorded incorrect information on your credit file — a default that should not be there, a missed payment that you dispute, or a balance that is wrong — you have a right to have it corrected.

Under UK GDPR Article 16 (right to rectification), you can require the lender to correct inaccurate personal data without undue delay. Write to the data controller (usually the lender's data protection officer), state specifically what is wrong, and request rectification in writing. If they refuse, you can escalate to the Information Commissioner's Office (ICO) as well as the FOS.

A default that has been recorded remains on your credit file for six years from the date of default — even if you pay the account in full. That is a further reason to challenge incorrect defaults immediately, before the damage compounds.

Section 4: How to complain — step by step

The complaints process for a PCP agreement complaint or hire purchase dispute follows the same regulated pathway regardless of the type of complaint. The rules are set by the FCA, and lenders must follow them.

Legislation that applies to vehicle finance disputes