Car Accident Fault Percentage Estimator
Compare how assumed shared fault changes recovery calculations.
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Whether you can still recover after being partly at fault depends on your state's negligence rule. Look up whether your state uses pure comparative, modified comparative, or contributory negligence — and the fault percentage at which recovery is reduced or barred entirely.
Select a state for its rule in plain English, or scan the full, sortable 50-state table below.
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The same accident can pay full value in one state and nothing in another.
When fault is shared, your state's negligence rule controls how much you can recover. Pure comparative states let you recover even when mostly at fault, reduced by your share. Modified states cut recovery off at a 50% or 51% threshold. A handful of contributory-negligence jurisdictions can bar recovery for being even slightly at fault.
That is why estimating your likely fault percentage is only half the picture — the rule is what turns that percentage into a dollar outcome.
Use these pages and documentation tools to validate the estimate, preserve evidence, and keep the claim file organized.
Guide
Learn how shared fault can reduce or bar recovery before looking up a state's rule family.
Related Tool
Estimate how fault is likely to be apportioned, then see how your state's rule applies it to recovery.
Related Tool
Once fault adjusts the gross, model what the settlement nets after fees and liens.
Guides
Read deeper guides on liability, negligence, and how shared fault is argued in a claim.
Comparative negligence reduces your recovery by your share of fault. In a pure comparative state you can recover even if mostly at fault (minus your percentage); modified states cut off recovery at a 50% or 51% fault threshold.
Under a 50% bar you cannot recover if you are 50% or more at fault. Under a 51% bar you can still recover at exactly 50% but not at 51% or more.
A few states follow pure contributory negligence, where being even 1% at fault can bar recovery entirely. It is the harshest rule for injured people.
In a comparative state, a $100,000 claim reduced by 30% fault pays $70,000. In a contributory state, that same 30% fault could bar recovery completely — which is why the rule matters so much.
This tool is an educational reference only and does not constitute legal advice. Negligence rules have exceptions and are applied to specific facts by courts and juries; verify the current rule and how it applies with a licensed attorney in your state. Values shown as “under review” are not yet published.
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