Comparative negligence
- Your damages are cut by your share of fault
- Pure versions let you recover even if mostly at fault
- Modified versions bar you at 50% or 51% fault
- Used in most US states, the UK and Canada
Fault rules
Comparative vs contributory negligence
If you were partly responsible for your accident, the fault rule where it happened decides whether you get reduced compensation or nothing at all.
The short answer
Under comparative negligence, your compensation is reduced by your percentage of fault, so being 20% to blame means you receive 80% of your damages. Under contributory negligence, being even slightly at fault can bar you from recovering anything. Most US states, the UK and Canada use a comparative approach. Only Alabama, Maryland, North Carolina, Virginia and Washington DC still use strict contributory negligence.
At a glance
Contributory negligence
- Any fault on your part can end the claim
- A 1% share of blame can matter
- Used in Alabama, Maryland, North Carolina, Virginia and DC
- Some exceptions, such as last clear chance, may apply
| What differs | Comparative negligence | Contributory negligence |
|---|---|---|
| Effect of shared fault | Reduces your award proportionally | Can eliminate your award |
| Threshold | None (pure), or a 50% or 51% bar (modified) | No threshold: any fault counts |
| What gets argued | The exact percentage split | Whether you contributed at all |
| Insurer tactics | Push your percentage up to shrink the payout | Find any mistake to deny the claim |
| Where it applies | Most US states, all UK nations, Canadian provinces | Four US states and DC |
How the rules work in practice
Say a court or insurer decides you were 30% at fault for a crash because you were driving slightly over the limit, and the other driver 70% for running a stop sign.
- Pure comparative negligence (California and New York, for example): you receive 70% of your damages. Even at 90% fault you could still recover 10%.
- Modified comparative, 50% bar: you recover 70%, but you'd get nothing if you were found 50% or more at fault.
- Modified comparative, 51% bar: the same, except you are only barred once your share goes above 50%. Florida moved from pure to this model in 2023.
- Contributory negligence: in Virginia or Maryland, your 30% share could mean you recover nothing.
The UK and Canada
In the UK, the Law Reform (Contributory Negligence) Act 1945 lets a court reduce your damages by whatever percentage it considers just and equitable. Despite the name, it works as a comparative rule: fault reduces your award rather than removing it. Common examples are not wearing a seatbelt, where reductions are often in the range of 15 to 25 percent if the belt would have lessened or prevented the injury, and getting into a car with a driver you knew had been drinking.
Canadian provinces all use apportionment under their own negligence statutes. Your damages are reduced by your share of fault, and contributory negligence no longer works as a complete bar.
How shared fault gets decided in your claim
Adjusters usually put a percentage on fault early, sometimes after a single recorded statement. In a 50% or 51% state, or anywhere contributory negligence applies, that number can decide whether you have a claim at all. Protect yourself by keeping your account factual, not apologising or guessing at the scene, and gathering evidence that shows what the other party did: dashcam footage, witness details, the police report and photos of the road.
Example
A pedestrian crossing mid-block in North Carolina is hit by a driver who was looking at a phone. The insurer argues she wasn't using the crosswalk, which under contributory negligence could bar her claim entirely. Her lawyer looks into whether an exception such as last clear chance applies, since the driver had time to see her and stop.
Common questions
Which states still use contributory negligence?
Alabama, Maryland, North Carolina, Virginia and Washington DC. Almost every other state uses some form of comparative negligence, either pure or modified.
Can I still get compensation if I was partly at fault?
In most places, yes. Your award is reduced by your share of fault. The exceptions are contributory negligence states and modified comparative states where your share reaches the 50% or 51% bar.
What happens if both drivers are 50% at fault?
It depends on the rule. In pure comparative states you each recover half your damages. In 50% bar states neither of you can recover, while in 51% bar states you can still recover half.
Does not wearing a seatbelt reduce my compensation?
In the UK and Canada it often does, if the belt would have reduced your injuries. In the US it varies widely: some states limit or exclude seatbelt evidence, while others allow a reduction.
Last reviewed September 2026. General information, not legal advice.