Answers · UK 2025/26
What is GAP insurance for a car and do I need it?
Guaranteed Asset Protection (GAP) insurance covers the difference between what your motor insurer pays out if your car is written off or stolen (its market value) and what you originally paid for it, or what you still owe on a finance agreement. It is most useful for new or nearly-new cars bought on finance, since cars typically lose a significant chunk of their value in the first few years, and market value payouts can leave a shortfall against the outstanding finance balance.
Full answer
GAP insurance addresses a specific risk that standard comprehensive car insurance does not cover: the gap between a car's depreciated market value and what you paid for it or still owe on it. **The problem GAP insurance solves** If your car is stolen or written off, your standard motor insurer will pay out its current market value at the time of the loss -- not what you originally paid. Because new cars typically lose a substantial proportion of their value within the first few years, this payout can be significantly less than the original purchase price or the amount still outstanding on a finance agreement, leaving you with a shortfall to cover yourself. **Types of GAP insurance** Finance GAP (or "return to invoice") insurance covers the difference between the market value payout and either the original invoice price or the outstanding finance balance, whichever is relevant to the specific policy. Vehicle Replacement GAP goes further, covering the cost of replacing your car with an equivalent new model, even if prices have risen since you bought it. Return to Invoice GAP specifically focuses on getting you back to the original purchase price. **Who benefits most** GAP insurance is most valuable for buyers of new or nearly-new cars, particularly those financed through hire purchase (HP) or a Personal Contract Purchase (PCP) agreement, since the combination of rapid early depreciation and a large outstanding finance balance creates the biggest potential shortfall. It is generally less useful for older, cheaper cars bought outright in cash, where the potential gap is smaller. **Where to buy it** Dealerships often offer GAP insurance at the point of sale, but this is frequently more expensive than buying an equivalent independent GAP policy from a specialist insurer -- shopping around separately from the dealership can often save a significant amount on the same level of cover. **Worked example** Someone buys a new car for £25,000 on PCP finance. Two years later it is written off; the insurer's market value payout is £16,000, but the outstanding finance balance is £19,000. Without GAP insurance, the driver would need to find the £3,000 shortfall themselves; with GAP insurance, the policy covers that gap. **Practical tip** Use the Car Finance calculator to see how quickly your car's value is likely to fall relative to your outstanding finance balance, which helps you judge how much GAP protection, if any, you genuinely need.
Try the calculator
This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.