GAP Insurance for Used Cars: UK Guide 2026

Yes. All of the major UK GAP specialists — ALA, Direct Gap, MotorEasy, gapinsurance.co.uk and others — sell cover on used vehicles, and most of their business is written on cars that have already had at least one owner. The main product for used-car buyers is return to invoice (RTI) GAP, which tops up your motor insurer's total loss settlement to the price on your purchase invoice.

The key restriction is timing. Most RTI policies must be bought within a window of the purchase date: ALA's eligibility criteria require that you have owned the vehicle for less than 180 days when you take out Back to Invoice Plus cover, and MotorEasy states its RTI product is available for cars acquired within the last six months. Miss that window and RTI is off the table — although agreed value GAP, covered below, remains an option with some providers.

On a new car, GAP insurance bridges the notoriously steep first-year depreciation drop from list price. On a used car, someone else has already absorbed that drop — so the gap being insured is smaller, and the policy is priced and structured differently.

Return to invoice on a used car protects the used price you paid, not the car's original cost when new. If you bought a three-year-old car for £14,000 and it is written off two years later when your insurer values it at £9,500, an RTI policy pays the £4,500 difference (illustrative example). Vehicle replacement GAP — which pays the cost of a newer equivalent car rather than your invoice price — is generally harder to get on used cars: ALA restricts it to vehicles under 7 years old with fewer than 80,000 miles, collected from a VAT-registered dealer within the last 90 days.

The third structure, agreed value GAP, was designed for used cars that fall outside normal criteria. Direct Gap's agreed value product covers the difference between your motor insurer's settlement and the Glass's Guide retail price of the vehicle at the time you bought the policy, and ALA's agreed value GAP has no age or mileage restriction at all, provided a Glass's Guide valuation is obtainable. That makes it the usual route for private sales, auction purchases and older cars.

Age and mileage limits are the first thing to check, because they are hard cut-offs measured on the day you buy the policy. The table below summarises the published rules from each provider's website and eligibility pages as of July 2026 — always confirm against the current policy wording before you buy, as terms change.

Two details are easy to miss. First, limits can differ by product within the same provider: ALA allows RTI on cars up to 10 years old, but its vehicle replacement cover stops at 7 years and 80,000 miles. Second, some providers also cap the insured value — MotorEasy requires the insured value to be below £75,000, and gapinsurance.co.uk lists a maximum vehicle value of £100,000 with a maximum claim limit of £75,000.

Depreciation is the whole reason GAP exists, so it is worth knowing the shape of the curve. According to Motorway's UK car depreciation guide, a typical car loses around 15–25% of its value in the first year and roughly 50–60% over the first three years, with the losses heavily front-loaded. That is why the owner of a one- or two-year-old used car still faces meaningful depreciation — they have bought near the top of the curve.

By contrast, the same guide notes that depreciation slows markedly as cars age: a car that is already six or seven years old has done most of its falling, and its market value declines relatively gently from there. MotorEasy makes the same point in its own guidance, noting that GAP cover may not be necessary on older, higher-mileage cars because their market value often stays fairly close to what was paid for them.

The practical takeaway: the younger the used car and the closer its price to new, the bigger the potential shortfall between what you paid and a future insurer valuation — and the stronger the case for cover.

GAP on a used car earns its keep in a fairly specific set of circumstances. The common thread is a meaningful difference between what you paid (or owe) and what a motor insurer would pay out after a write-off or theft.

Honesty matters here: for many older used cars, GAP insurance is not worth buying. If you paid £4,500 for a nine-year-old hatchback, the maximum possible shortfall between your invoice price and any plausible insurer settlement might only be a few hundred pounds — yet the premium, policy excesses and claim conditions are all still there. The flatter the depreciation curve, the smaller the gap you are insuring.

It is also worth remembering the regulatory backdrop. In 2024 the FCA reported that GAP insurance had been paying out as little as 6% of premiums in claims across the market, and firms representing around 80% of GAP sales agreed to pause selling until they could demonstrate fair value. Standalone specialist pricing has always compared well against dealer add-on pricing, but the episode is a useful reminder to check that the realistic shortfall on your car justifies the premium.

As a rule of thumb, if the difference between your purchase price and the car's likely market value in two or three years is smaller than a couple of years' worth of premiums, put the money towards your excess savings instead. Our guide on whether GAP insurance is worth it works through the sums in more detail.

Standalone GAP for a typical used car is inexpensive relative to the sums protected. MotorEasy advertised GAP cover from £4.30 per month on its website as of July 2026, and ALA's guidance indicates multi-year policies generally range from around £100 to £300 depending on vehicle value and term. Direct Gap does not publish a from-price, noting that quotes vary with the original price of the car and the policy length, but advertises savings of up to 75% against dealer-sold equivalents.

Premiums scale mainly with the insured value and the policy term, so a modest used car on a three-year policy sits at the cheap end. Because pricing varies this much, the only meaningful number is a quote on your actual car — see our cost guide for typical price bands by vehicle value.

Before you compare quotes, gather your purchase invoice, first registration date and current mileage — every provider will ask for them, and eligibility is assessed on the day you buy the policy.