If Your Car Is Written Off and You Want to Keep It, What Comes Off the Payout?
If the insurer agrees to let you keep a car written off in Category S or N, it takes the salvage value off your payout. That deduction is a separate number from the car's market value, and the Financial Ombudsman Service has changed it when it was higher than what the insurer would have got for the salvage.
Our guide on what to do if a write-off offer is too low is about the value of the car. This one is about the second number, which only appears if you decide to keep it.
Need a documented market value for a write-off settlement? Get a price for your write-off valuation report.
Which written-off cars can you keep?
Gov.uk lists four categories. Category A cars cannot be repaired and the whole vehicle is crushed. Category B cars cannot be repaired either, and the body shell is crushed, though other parts can be salvaged. Category N cars can be repaired after non-structural damage, and Category S cars after structural damage. You can use an N or S car again once it is repaired to a roadworthy condition.
For N and S, gov.uk says the insurer will give you a payout and sell the vehicle back to you. For a Category S car you also send the complete log book to the insurer and apply for a free duplicate using form V62, and DVLA records the category in the log book.
Why does the insurer take money off?
The Financial Ombudsman Service says that when a vehicle is written off, the insurer usually owns the salvage once you have accepted payment for the full market value. If you want the car back, you are in effect buying it from the insurer. In a decision involving Ageas, the ombudsman put it this way: the salvage value is what the customer would need to pay the insurer to get the car back, on top of the settlement for it.
So the settlement works in two steps. First the insurer pays the market value of the car before the damage. Then it deducts what the damaged car is worth to it, and you get the difference.
How big is the deduction?
There is no official rate. These three Ombudsman decisions show how it was set:
| Decision | What the insurer deducted | Outcome |
|---|---|---|
| DRN-5910257 (Ageas) | 25%, in line with its arrangement with its salvage company | Not upheld: the insurer showed the rate was what it would have got |
| DRN-6055079 (Tradex) | 33% (£1,089) | Upheld: its own data showed 26%, so the fair deduction was £858 and it paid £231 |
| DRN-4721403 (One Insurance) | 50% of the valuation, after the engineer's report said £2,329 | Upheld: no evidence for the 50%, so the engineer's figure was used and the settlement rose by £4,325.75 |
The pattern is the same in all three. An insurer may deduct what it would have received for the salvage, but it has to be able to show that figure. In the Tradex decision the ombudsman said the insurer needed to demonstrate that the amount it deducted was in line with what it would have received from its salvage scheme.
Settlement lower than the car was worth? Send us the details and photos and we prepare an independent valuation with the comparable cars and the adjustments set out, usually within a few hours.
Get a price for my write-off valuation reportYour price is confirmed in writing before any work begins.
What should you ask the insurer before you agree to keep the car?
- The market value it has used, and how it got there. The Ombudsman says insurers mainly rely on motor valuation guides and is likely to agree where the guides give a similar value.
- The salvage figure as a number and as a percentage of that value.
- What evidence supports the salvage figure, such as an engineer's report or the rate from its salvage scheme.
- The payout both ways: with the insurer taking the car, and with you keeping it. Mrs A's offer in the Ageas case set out both.
Does a better valuation help if you keep the car?
It does, but not one for one. In the Tradex and One Insurance decisions the deduction was set as a share of the car's market value, so a higher value raises the deduction too. If the rate is 26%, as in the Tradex case, every extra £1,000 of market value adds £740 to what you receive. That is still a gain, and the market value is the number you can build evidence for.
The Ombudsman says it may look at independent engineer or expert reports, copies of valuations, evidence of pre-existing damage and the vehicle history. A valuation report is about the car's market value before the damage. The salvage figure is a separate number the insurer has to evidence.
Frequently asked questions
Can I keep my car if the insurer writes it off?
Only if it is in Category N or S. Gov.uk says that for those categories the insurer will give you a payout and sell the vehicle back to you. Category A and B cars cannot be repaired and are crushed, in full or as a body shell.
How much does the insurer take off for the salvage?
There is no fixed figure. In the three Ombudsman decisions we read, the insurers deducted 25% to 33%, and in one case asked for 50%. The deduction should reflect what the insurer would have received for the salvage.
Can I challenge the salvage deduction?
Yes. The Financial Ombudsman Service says an insurer that returns the damaged car after deducting salvage value must provide evidence of what it would have got for the salvage. Ask your insurer for that evidence first, and complain to the Ombudsman if it will not give it.
Does a higher valuation of the car help if I keep it?
It raises your payout, but also the salvage deduction if the insurer sets that as a percentage of the market value, as in two of the three decisions. At a 26% rate, every extra £1,000 of market value adds £740 to what you receive.
Car written off and the offer looks low?
We prepare independent valuations from the details and photos you send, with the comparables set out, usually within a few hours.
Get a price for my write-off valuation reportYour price is confirmed in writing before any work begins.
Sources: GOV.UK, insurance write-offs; Financial Ombudsman Service, motor valuations and write-offs; the three decisions linked in the table. All read on 5 October 2026.