Category S and Category N are labels insurers use after a claim, when they decide not to repair the car themselves. A write-off is not scrap metal. Some of these cars are repaired and driven again. Some should never go back on the road. The letter tells you which conversation you are in.
This explains the UK labels. It is not a history check, and it is not a comment on any car we have listed. Ask, and run your own check, before you rely on an advert.
The four labels, in brief
Since October 2017, insurers recording a write-off in the UK have used four categories.
- Category A means the car should be crushed. It is not a car to buy for the road.
- Category B means the car can be broken for parts, but the body shell should not go back on the road.
- Category S means structural damage. The car can be repaired and used again. The structure was damaged, so the quality of that repair is the whole point.
- Category N means non-structural damage. The car can also be repaired and used again. The structure was not the damaged part. The damage can still be serious.
Older records can still say Category C or Category D. Those labels were dropped in the 2017 change. They were based mainly on the cost of repair compared with the value of the car, not on a simple structural split. If a history check shows C or D, ask what the record refers to. Do not treat C as a tidy match for S, or D as a tidy match for N.
What Category S actually tells you
Category S means an insurer decided the damage reached the structure of the car and that they would not repair it on their own policy. Structure, in this context, is the frame or chassis area that matters in a crash, not a scratched bumper.
A repaired Category S car can be legal and perfectly usable. It can also have been put back together badly. You cannot see the difference from the category letter alone. Ask what was damaged, who repaired it, and whether there are invoices and photos from before and after the repair. Airbags, seatbelts and other safety parts matter as much as the panels you can see.
An MOT pass after the repair is useful. It is not proof that the structure was put right. The test checks the car on the day. It is not a survey of how a crash was repaired.
What Category N actually tells you
Non-structural does not mean trivial. Category N can cover damage to lights, panels, wiring, or safety systems, and it can include water damage. A car can be Category N because the insurer's repair bill did not make sense, even when the shell was straight.
Treat it as a recorded insurance decision, not as a polite word for a car-park dent. You still want to know what broke, what was replaced, and whether the repair looks consistent. If the interior smells damp, or the electrics behave oddly, take that seriously and do not talk yourself out of it because the letter is N rather than S.
A visible dent, on its own, is a different subject. The 2012 Nissan Juke listing on this site notes a dent on the front passenger door, and the 2016 Kia Sportage listing notes scratches and a gearbox point. Those are condition notes about what we have seen or been told. They are not category markers. A category is a separate question you should ask about any used car, including ours.
How the record usually turns up
A vehicle history check, using the registration and the vehicle identification number, is the usual way to see a marker. Sellers should tell you about a write-off. If a check shows one and the advert was silent, stop and get an explanation before you talk about price. The same report often covers outstanding finance and stolen markers. It will not tell you whether the repair was any good.
Questions worth asking before you travel
- Which category is recorded, and when was the car written off?
- What was damaged, in ordinary words?
- Who repaired it, and can you see invoices or photos?
- Were airbags or other safety parts replaced?
- Has the car had an MOT since the repair, and what did that test say? You can compare that with the free MOT history (opens in a new tab).
- Will your insurer cover this exact car? Ask them, or a broker, before you buy. Some insurers want the details. Some charge more. This guide will not guess a price.
If you are unsure about a Category S repair, an independent garage or inspection can meet you at the viewing. Price should reflect the record. Buyers often pay less for a write-off marker, and the next buyer will see it too. There is no fixed discount that makes a bad repair good.
The viewing checklist still applies. A category marker does not replace a slow look around the car, and a clean walk-round does not replace the history check.
Message us on Facebook if you want to ask about a car in stock before you come. We would rather answer a straight question than have you travel across the city with a doubt.
