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Comparative negligence explained

If you were even partly responsible for a crash, your compensation can shrink — or disappear entirely — depending on your state's fault rules. Here is how it works.

What comparative negligence means

Comparative negligence is the legal principle that reduces your recovery by your share of the blame. If your claim is worth $50,000 but you were 20% at fault, you would receive $40,000. Our settlement calculator lets you enter a fault percentage to see this effect directly.

The three main systems

System	How it works
Pure comparative negligence	You can recover even if 99% at fault — but your award is reduced by your share.
Modified — 50% bar	You recover only if you are less than 50% at fault.
Modified — 51% bar	You recover only if you are 50% or less at fault.

Contributory negligence — the strict exception

A small number of states follow strict contributory negligence, where being even 1% at fault can bar recovery entirely. It is one of the harshest rules in U.S. injury law, which is why fault is fought over so hard in those states.

How fault is decided

Insurers and, if needed, courts assign fault based on the police report, physical evidence, witness statements, traffic laws, and sometimes accident reconstruction. Because a few percentage points can move thousands of dollars, documenting the scene well (see what to do after a crash) matters enormously.

Why this matters for your settlement

Two people with identical injuries can walk away with very different amounts purely because of fault percentages and which state's rule applies. That is also why insurers often try to shift some blame onto you — every point of fault they assign reduces what they pay.

General educational information, not legal advice. The rule that applies depends on your state; consult a licensed attorney.