GAP insurance comes up in almost every car dealer conversation, usually right at the end when you're signing paperwork and your guard is down. Here's what it actually does, when it's genuinely useful, and when you can safely decline it.
What Is GAP Insurance?
GAP stands for Guaranteed Asset Protection. It covers the difference (the "gap") between what your standard car insurance pays out if your car is written off or stolen, and what you originally paid for it — or what you owe on finance.
The problem it solves: If you buy a car for £15,000 and it's written off 18 months later, your insurer pays its current market value — which might be £10,000. You're £5,000 short. If you had £13,000 left on a finance agreement, you'd owe the lender £3,000 that your insurance hasn't covered.
GAP insurance covers that shortfall.
Types of GAP Insurance
- Finance GAP — covers the difference between the insurance payout and the outstanding finance balance. Most relevant if you're on HP or PCP.
- Return to Invoice (RTI) — pays the difference between insurance payout and what you originally paid for the car. More comprehensive.
- Vehicle Replacement GAP — covers the cost of replacing the car with a like-for-like equivalent. Most expensive and usually overkill on used cars.
When GAP Insurance Is Worth It
- You've bought a car on finance (HP or PCP) with a small deposit — you owe more than the car is worth for the first year or two
- You've bought a high-depreciation car (luxury brands, new cars) where the value drop in year 1–2 is significant
- You've paid close to retail for a used car and want to protect against depreciation if it's written off
When GAP Insurance Probably Isn't Worth It
- You bought the car outright with cash — there's no finance gap to worry about
- You paid significantly below market value — the "gap" may not exist
- The car is older and lower value — premiums may not be proportionate to the risk
- Your standard policy already includes agreed value or new car replacement cover
The Price Problem
Dealers typically charge £300–£600 for GAP insurance added to your paperwork. The same policy from a standalone insurer (Motoreasy, GapInsurance123, ALA) typically costs £50–£150 for equivalent cover. You're not obliged to buy it from the dealer — and you have a 4-year cooling-off period after purchase to shop around.
Rule: Never buy GAP insurance at the dealership on the day. Shop around and buy it separately within a few days.
Bottom Line
GAP insurance is a genuinely useful product for the right buyer in the right situation — particularly on finance with a small deposit. The product itself is fine; the dealer price usually isn't. If you want it, buy it elsewhere for a fraction of the cost.