What is gap insurance and is it worth it?
GAP (Guaranteed Asset Protection) insurance covers the difference between what your motor insurer pays if your car is written off or stolen, and a higher figure — either what you originally paid or what you still owe on finance.
Why a gap exists. Motor insurance settles at market value on the day of the loss. Cars depreciate steeply, so a car bought for £30,000 might be worth £21,000 eighteen months later. Written off at that point, you receive £21,000 — while potentially still owing more than that on a finance agreement, or needing £30,000 to replace what you had.
The main types:
Return to invoice pays the difference between the settlement and the original purchase price.
Finance GAP pays the difference between the settlement and the outstanding finance balance, clearing the debt. It does not leave you with money for a replacement.
Vehicle replacement pays the cost of an equivalent new vehicle at today's prices, which can exceed what you originally paid.
When it is genuinely worth considering: a new or nearly new car, especially a model depreciating quickly; a PCP or lease agreement where the outstanding balance can exceed market value; and where you could not absorb a several-thousand-pound shortfall.
When it is poor value: an older car, where depreciation has already happened and the gap is small; a car bought below list price, since return-to-invoice then reflects a lower figure anyway; and where you have savings to cover the difference.
Buy it separately. This is the most consequential practical point. Dealership GAP has historically been substantially more expensive than standalone policies — often by several hundred pounds. UK regulators introduced a deferred opt-in period specifically so buyers could not be sold it under pressure at the point of sale, and the FCA has since intervened over poor value in the market.
Check for exclusions, particularly around mileage, vehicle age at purchase and claim timing.