When buying a used car, you may come across vehicles described as:
These terms refer to insurance write off categories.
A vehicle receives a write off category when an insurance company decides that repairing the damage is not financially practical or the vehicle has suffered significant damage.
Understanding these categories is important because a written off vehicle may have a different value, repair history and resale potential compared with a vehicle that has never been damaged.
Before buying a repaired vehicle, buyers should understand exactly what each category means.
What Is A Write Off Category?
A write off category is a classification used by insurance companies to describe the level and type of damage a vehicle has suffered.
A vehicle may be written off because of:
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Serious mechanical damage
Not every written off vehicle is unsafe.
Some vehicles can be repaired and legally returned to the road.
However, the category gives buyers important information about the vehicle’s past.
Category A is the most severe write off category.
Cat A vehicles are considered beyond repair.
These vehicles cannot legally return to the road.
They must be completely destroyed.
Cat A vehicles usually have:
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Extreme structural damage
No parts from a Cat A vehicle should normally be reused.
Category B vehicles have significant damage where the vehicle body cannot be reused.
However, some parts may be recovered and reused.
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Cannot return to the road
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Cannot be repaired for normal use
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May have usable components removed
Examples of reusable parts may include:
The vehicle shell itself must be destroyed.
Category S means the vehicle has suffered structural damage.
The vehicle can be repaired and returned to the road if repairs are completed correctly.
Structural damage may involve:
•
Structural body components
A Cat S vehicle requires careful checking because poor repairs can affect safety.
Should You Buy A Cat S Car?
A Cat S car is not automatically a bad purchase.
A repaired Cat S vehicle may provide good value if:
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Repairs were completed professionally
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Documentation is available
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Vehicle condition is confirmed
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Price reflects the history
Always inspect the vehicle before buying.
Category N means the vehicle has suffered non-structural damage.
The damage does not affect the main structural frame.
Cat N vehicles can often be repaired and returned to the road.
Should You Buy A Cat N Car?
A Cat N vehicle can be a good option if it has been repaired properly.
However, buyers should still check:
Cat S Vs Cat N Difference
The main difference between Cat S and Cat N is the type of damage.
Cat S generally requires more attention because structural repairs are involved.
Old Write Off Categories: Cat C And Cat D
Before 2017, vehicles used different categories.
Vehicles where repair costs were higher compared with vehicle value.
Vehicles with repair costs lower than vehicle value but still written off due to insurance decisions.
These categories were replaced by Cat S and Cat N.
Why Check Write Off Category Before Buying?
A write off category can affect:
Written off vehicles are usually worth less than similar vehicles without damage history.
Some insurers may have different requirements for damaged vehicles.
Future buyers may avoid vehicles with previous write off history.
Poor repairs can create safety concerns.
How To Check If A Car Is Cat S Or Cat N
Before buying a repaired vehicle:
Review available records including:
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Vehicle condition history
Good documentation provides more confidence.
Common Mistakes When Buying Written Off Cars
Only Looking At The Price
A cheap vehicle may become expensive if repairs were poor.
Assuming Cat N Means No Problems
Non-structural damage can still involve expensive repairs.
Always understand why the vehicle was written off.
Always inspect before buying.
How CarVerified Helps Check Write Off Vehicles
CarVerified helps UK buyers research vehicles before purchase.
Using a registration number, users can:
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Access available history information
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Check important vehicle records
This helps buyers understand a vehicle’s background before making a decision.
Save Vehicles In CarVerified Garage
When comparing multiple vehicles, users can save important information.
CarVerified Garage helps manage:
This makes vehicle research easier.
Frequently Asked Questions
Cat S means a vehicle has suffered structural damage but has been repaired and can return to the road.
Cat N means a vehicle has suffered non-structural damage.
A Cat S car can be safe if repaired correctly and inspected properly.
Is A Cat N Car Worth Buying?
A Cat N car can offer good value if the repair quality and history are clear.
Can Cat A Cars Be Repaired?
No. Cat A vehicles cannot return to the road.
Can Cat B Cars Be Put Back On The Road?
No. Cat B vehicles cannot return to normal road use, although some parts may be recovered.
Should I Check A Written Off Car Before Buying?
Yes. Always check category information, vehicle history, MOT records and repair quality.
Understanding Cat A, Cat B, Cat S and Cat N categories is essential when buying a used vehicle.
A written off car is not automatically a bad purchase, but buyers need to understand the damage history and repair quality.
Cat S and Cat N vehicles can provide excellent value when properly repaired and carefully checked.
CarVerified helps UK drivers check vehicle information, save cars in Garage and make smarter used car decisions.
Before buying any repaired write off vehicle, check the history first.