When an insurer writes your car off, it has decided not to repair it: it pays you the car's market value just before the loss, minus your excess, and the car gets a write-off category that stays on its record for life. Whether you get a fair sum depends on the valuation, any finance on the car and whether you want to keep it. This guide covers the process from the insurer's decision to the money in your account: how the payout is worked out, how to challenge it, what happens with finance and GAP, buying the car back, the tax refund, and what the write-off means for the car afterwards. It is general guidance, not legal advice: your policy wording decides the detail.
What "written off" means
A write-off, or total loss, is an insurer's decision, not a statement that the car is beyond saving. If repairing the car would cost more than the insurer is willing to spend against its value, taking in a hire car, storage and its own time, the insurer settles the claim with money instead of a repair. That is why older cars are written off after fairly minor damage. The decision comes with a category under the insurance industry's salvage code:
| Category | Meaning | Can you keep it on the road? |
|---|---|---|
| Cat A | Scrap: the whole car must be crushed | No |
| Cat B | Break: the body shell must be crushed, parts may be salvaged | No |
| Cat S | Structural damage, repairable | Yes, once professionally repaired |
| Cat N | Non-structural damage, repairable | Yes, once repaired |
Cat S and Cat N replaced the old Cat C and Cat D in October 2017. The full list, with the old codes, is in write-off categories explained.
My car has been written off: what happens next
- The insurer's engineer inspects the car, in person or from photos and the repairer's estimate, and recommends a category.
- The insurer tells you the car is a total loss, the category and its valuation, usually in writing, and asks for the V5C log book and any spare keys.
- You accept, or you challenge the valuation (see below). Nothing is final until you accept.
- The insurer pays: any finance company first, then you. If you keep the car, the salvage value comes off the sum.
- The insurer tells the DVLA about the write-off. The DVLA refunds any full months of road tax left, and if you keep a Cat S or Cat N car you apply for a replacement V5C.
- The write-off goes on the insurance industry's register, where any future buyer's write-off check will find it.
Car written off: how much will I get?
The starting point is the car's market value immediately before the loss: what it would have cost you to buy the same car, with the same age, mileage, trim, options and condition, on the day of the accident. It is not what you paid, not what you owe on finance, and not what a replacement costs today if prices have moved. Insurers take the figure from the trade valuation guides, sometimes adjusted for condition and mileage. From that figure they deduct:
- Your excess, including any voluntary excess you chose for a lower premium.
- The rest of the year's premium, if you pay monthly: the policy has paid out, so many insurers take the remaining instalments from the settlement. Check your policy wording.
- The salvage value, if you keep the car.
There is no write-off calculator that gives a figure for your car, because the figure is a judgement about the market. That is also why it can be argued with.
Negotiating a low valuation
If the offer looks low, do not accept it. Ask the insurer in writing how it reached the figure, then build your own case:
- Collect adverts for the same model, year, trim, similar mileage and condition, from dealers and private sellers, dated close to the loss. Screenshots with the date are your evidence.
- List everything that adds value: a full service history, a recent MOT with no advisories, new tyres, a recent timing belt or clutch, factory options, low mileage for the age.
- Send the evidence and ask for a revised offer. Insurers do revise valuations when the evidence supports it.
- If you still disagree, make a formal complaint. Once the insurer gives its final answer, or eight weeks have passed, you can take it to the Financial Ombudsman Service, which is free to use.
A reasonable valuation reflects what you would actually have to pay to replace the car, so retail adverts, not trade prices, are the right comparison for a private owner.
Written-off car on finance
If the car is on hire purchase, PCP or a conditional sale, the finance company owns it until the last payment, so the insurer settles with the finance company first and sends you whatever is left. The problem comes when the payout is less than the amount you still owe, which is common in the first years of a PCP: the car has lost value faster than the balance has fallen. The shortfall is still your debt.
- Ask the lender for a settlement figure as soon as the car is declared a total loss, and tell the lender the car has been written off.
- GAP insurance, if you bought it, is for exactly this: it pays the difference between the insurer's payout and either the finance balance or the price you paid, depending on the type of cover. Claim on it after the main insurer has settled.
- Without GAP, the shortfall has to be paid or re-financed; talk to the lender before missing payments.
- If the payout is more than the balance, the surplus is yours.
Leased cars work differently: the leasing company owns the car and handles the claim. Finance on a car you are buying second-hand is a different problem, covered by the outstanding finance check.
Can I buy back my written-off car?
Often, yes, for a Cat S or Cat N car. This is called salvage retention: you tell the insurer you want to keep the car, it deducts the salvage value from your payout, and the car is yours to repair. Cat A and Cat B cars cannot be kept for the road. Before you decide: the car is recorded as Cat S or Cat N for life, which lowers its value and can raise its insurance however well you repair it; a Cat S repair is structural work for a body shop with a jig; you will need a replacement V5C if the insurer kept the original; and you must tell your next insurer the category. Buying back makes sense for a cheap-to-repair Cat N or a car you can repair yourself to a proper standard, and rarely for a Cat S car you would pay a professional to rebuild.
Road tax refund after a write-off
When the insurer tells the DVLA the car is a total loss, the DVLA cancels the tax and refunds any full months left to the registered keeper; a direct debit is cancelled automatically. You do not get the part-month back, and the refund arrives separately from the insurance payout. If it has not arrived within a few weeks, check that the insurer has told the DVLA. The detail is in car tax refunds: when you get one and how it works. If you keep the car, declare it SORN while it is being repaired and tax it again when it goes back on the road.
Not-at-fault write-offs
If another driver caused the accident, you can claim from their insurer rather than your own, directly or through your insurer. The valuation rules are the same: market value before the loss. The differences are that you should not pay an excess, you are usually entitled to a replacement vehicle while the claim is sorted, and your no-claims discount should not be affected once the other side has accepted liability. The car still receives a write-off category, because the category describes the damage, not who was to blame. Keep your evidence: photos of the scene, the other driver's details, witnesses and any dashcam footage.
What happens to the car's record
The write-off is reported to the Motor Insurance Anti-Fraud and Theft Register, where it stays permanently. A write-off check on the registration shows the category and the date of loss to anyone who runs it. If you keep and repair the car, you must declare the category when you sell it and when you insure it; a car described as accident-free that turns out to be a write-off is misrepresentation. If you are buying a car with a declared write-off, run the check: the category and date in the report should match the seller's story.
About 1 in 7 cars our customers checked in full between March 2023 and October 2026 had a write-off recorded, so it is not a rare record to carry. The car history check page explains what the free check and the full report show.
Written-off car checklist
- Get the insurer's decision, category and valuation in writing.
- Check the valuation against dated adverts; challenge it with evidence if it is low.
- Tell your finance company, ask for a settlement figure, and check whether you have GAP cover.
- Decide whether to keep the car (Cat S or Cat N only) before you accept the settlement.
- Remove your belongings and the private plate if you want to keep it.
- Hand over the V5C and keys as asked, or apply for a replacement V5C if you keep the car.
- Watch for the road tax refund.
- If you keep the car, keep every repair invoice and photo for the next insurer and the next buyer.
Written-off car FAQs
What happens when a car is written off?
The insurer pays you its market value before the loss, minus your excess, instead of repairing it. The car gets a category (A, B, S or N), the DVLA is told, and the write-off is recorded on the car for life.
Can I refuse the insurer's offer?
Yes. Ask how the figure was reached, send evidence of similar cars for sale, and complain to the insurer and then the Financial Ombudsman Service if you still disagree.
What if the payout is less than my finance balance?
The finance company is paid first and the shortfall remains your debt. GAP insurance, if you have it, covers the gap; otherwise agree a plan with the lender.
Am I still insured after my car is written off?
Once the insurer has paid out, the policy on that car normally ends and the remaining premium is usually not refunded. Ask whether the policy can be moved to a replacement car before you buy one.
Does a write-off show on a history check?
Yes. The category and the date of loss are recorded permanently and appear in the full report. The free check cannot show them, but the MOT history can hint at the time the car was off the road.