GAP Insurance Explained: Do You Need It?
Updated Oct 15, 2026 · Hannah Breckett · 5 min read
If your car is written off, your insurer pays its current value — which may be far less than you owe or paid.
What this article covers
New cars lose value fastest in their first few years. If a car is stolen or written off, a standard policy pays out its market value at the time — not what you paid, and not what you still owe on finance.
GAP (guaranteed asset protection) insurance covers that shortfall.
How the gap appears
Suppose you buy a car on finance and it is written off after eighteen months. The insurer pays its market value, but the outstanding finance is higher. Without GAP cover, you would still owe the difference while having no car.
Types of GAP cover
- Finance GAP: covers the difference between the insurance payout and the outstanding finance
- Return-to-invoice: covers the difference up to the original purchase price
- Vehicle replacement: covers the cost of a new equivalent car
When it makes sense
GAP is most useful if you have a large finance agreement, a small deposit, a lease, or a car that depreciates quickly. It is less useful on older, cheaper cars bought outright.
Where to buy it
Dealers often offer GAP at the point of sale, but standalone providers are frequently cheaper for comparable cover. You do not usually have to buy it at the same time as the car — in many places you can add it within a short window afterwards.
Check the small print
Look at the maximum claim limit, the policy length, whether it covers your insurance excess, and any exclusions such as commercial use. Make sure it matches the length of your finance or lease agreement.
This is general insurance information, not legal, financial, or insurance advice. Coverage depends on your specific policy, insurer, and jurisdiction. Read your policy documents and speak with a licensed insurance agent or broker before making decisions.