Write-off value calculator

Enter a car's clean market value and see what a repaired Cat S or Cat N example is likely to be worth. The percentages come straight from our write-off value guide.

The published resale ranges

• Category N: 75% to 85% of a clean equivalent. Non-structural damage, so buyers price in less risk.
• Category S: 60% to 75% of a clean equivalent. Structural damage was recorded, which carries more stigma and insurance friction.
• Unrecorded or undisclosed accident damage: no published rule-of-thumb exists, because by definition nobody tracks it. Treat it as at least as risky as a Cat S.

Why there is a range, not a single number

The category tells a buyer how the damage was classed, not how well the repair was actually done. The same Cat S marker sits on a car repaired to a genuinely sound standard and one patched up cheaply to pass an MOT, and the market cannot tell the two apart from the paperwork alone, so it prices the whole category somewhere in between. A full repair history, an engineer's report, or a specialist Cat S/N insurer already on board pushes a specific car toward the top of its range; a bare marker with no supporting paperwork pushes it toward the bottom.

Try the interactive version above, or check a specific car's own record with the free mileage and history check. If it is your own car that is damaged and you are deciding what to do with it, use is my car worth repairing instead.