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Write-Off & Salvage Check — Free MOT Check Included

Salvage History Check - Is Your Car a Write-Off?

Check if a vehicle has been written off by an insurer. Understand Cat N, Cat S, Cat C, and Cat D categories — and run a free MOT history check to spot signs of past accident damage.

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UK Insurance Write-Off Categories Explained

Understanding the write-off category tells you how seriously a vehicle was damaged and what it means for roadworthiness.

Category S

Structural damage. The vehicle has damaged chassis, crumple zones, or suspension mounting points. Can be repaired and returned to the road but must undergo DVLA re-inspection and re-registration before being sold.

Category N

Non-structural damage. Damage is limited to non-structural components such as panels, airbags, electronics, or cosmetic items. Can be repaired and sold without DVLA re-inspection — but repairs must still be carried out properly.

Category C (old)

The pre-2017 equivalent of Cat S. Structural damage where repair cost exceeded the vehicle's value. Category C vehicles were required to be re-registered after repair. Still appears on pre-2017 write-off records.

Category D (old)

The pre-2017 equivalent of Cat N. The vehicle was written off for non-structural reasons or where repair cost was high relative to value but not necessarily structurally compromised. Less serious than Cat C.

How MOT History Helps Identify Past Accidents

MOT history does not directly record write-off status, but the data reveals telling patterns that point to past accident damage.

Gaps in MOT History

A year or more with no MOT test can indicate the vehicle was off the road following a serious accident. Sellers rarely volunteer this information, but the DVSA records do not lie.

Mileage Anomalies

Mileage that drops, stays flat for a long period, or jumps dramatically can indicate the vehicle was sitting unrepaired for months or was sold to a repairer who clocked it.

Structural Advisories

Advisory notices mentioning subframe condition, sill corrosion, or suspension mounting points — particularly on a relatively new vehicle — can be red flags for poorly repaired accident damage.

Sudden Improvement in Pass Rate

A vehicle that repeatedly failed MOTs, then suddenly passed cleanly and was sold, may have received only superficial repairs to get it through the test rather than a thorough accident repair.

Change of Test Station

A sudden change in test station — particularly to a different region — can indicate the vehicle changed hands after an incident, potentially at auction, where it is common for salvaged vehicles to re-enter the market.

Full Write-Off Check

For certainty, our full vehicle history check includes insurance write-off category data sourced from insurance databases. Upgrade from the free MOT check for complete salvage history verification.

Why Checking Salvage History Matters

Buying a written-off car without knowing it can have serious financial and safety consequences.

Safety Risk

Poorly repaired structural damage compromises the vehicle's crumple zones and safety cage. In a subsequent accident, the vehicle may not protect occupants as designed. Airbag deployment timing can also be affected by structural misalignment.

Financial Loss

A written-off vehicle is worth significantly less than an equivalent clean-history example — typically 20-40% less depending on category and repair quality. Buying one at full market price means an immediate and substantial loss in value.

Insurance Problems

Insurers require you to disclose known write-off history when taking out a policy. If you are unaware of the history and the insurer discovers it during a claim, they may reduce a payout or decline to pay entirely on the basis of non-disclosure.

Salvage History Check — FAQ

Common questions about write-off categories and salvage history checks.

What is a salvage history check?
A salvage history check reveals whether a vehicle has ever been declared a total loss (write-off) by an insurance company. When an insurer decides the cost of repair exceeds the vehicle's value — or that the damage is too severe — they write the vehicle off and assign it an insurance category. This record is held by insurance databases. Our free MOT history check is an essential first step, and you can upgrade to a full vehicle history check that includes write-off and salvage category data.
What do the write-off categories mean?
UK insurance write-off categories were updated in 2017. Category S (structural) means the vehicle has sustained structural damage but can be repaired and returned to the road — it must be re-inspected by the DVLA before re-registration. Category N (non-structural) means the damage is non-structural (for example, airbag deployment or electrical damage) and the vehicle can be repaired and re-sold without DVLA re-inspection. The older Cat C and Cat D categories are equivalent to the new Cat S and Cat N respectively and still appear on pre-2017 write-off records.
Can a written-off car be safe to drive?
A Category N write-off, properly repaired by a reputable bodyshop, can be entirely safe to drive. The non-structural damage — cosmetic panels, airbags, electrical systems — can be properly restored. Category S is more serious: structural damage must be correctly repaired and independently inspected before the car is returned to the road. What matters is the quality of the repair, not just the category. The problem is that many write-offs are repaired cheaply, without proper structural alignment or safety component replacement, making them dangerous even if they look presentable.
How does MOT history help identify a write-off?
An MOT history check does not directly reveal write-off status, but it provides crucial context. A gap in MOT testing — a year or more where no test was carried out — can indicate a period off the road following a serious accident. A mileage reading that jumps up significantly after a gap, or advisory items focused on structural areas such as subframe condition or sill corrosion, can also hint at past accident damage. Our free MOT history check is a strong starting point before investing in a full write-off history report.
What should I check before buying a car with write-off history?
If a seller discloses write-off history, or if a full history check reveals it, you should: verify the category (N is less serious than S), ask for documentation of the repair work, have the car independently inspected by a qualified mechanic or engineer, check for signs of poor repair quality (misaligned panels, overspray, inconsistent paint texture), ensure the selling price reflects the write-off status, and confirm the car is properly re-registered if it was a Category S. Never pay full market value for a written-off vehicle without thoroughly understanding the repair quality.

Check MOT History Before You Buy — Free

Start with a free MOT history check to spot signs of past accident damage. Upgrade for full write-off and salvage category data.

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MOT data sourced from the DVSA. Write-off and salvage category data sourced from insurance industry databases. Last updated: April 2026.