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Comparative Negligence Calculator

Being partly at fault rarely ends a claim — but in some states crossing a threshold erases it. See exactly how your fault percentage changes your recovery under your state's rule.

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Comparative-negligence calculator

If you share part of the blame, most states cut your recovery by your fault percentage — and some bar it entirely past a threshold. Enter your damages, your fault share, and your state's rule to see what is left.

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Not sure which applies? Most states use a 50% or 51% bar. Confirm yours with an attorney.
Full damages Reduction for your fault
Estimated recoverable

"It was partly my fault" does not automatically end a claim. How much fault costs you depends entirely on which of four rules your state follows — and the difference can be your whole recovery.

The four rules, plainly

  • Pure comparative negligence. Your recovery is reduced by your fault percentage, no matter how high. Even if you are 90% at fault, you can recover 10% of your damages.
  • Modified comparative — 50% bar. You recover (reduced by your fault) only if you are less than 50% at fault. At 50% or more, you recover nothing.
  • Modified comparative — 51% bar. The most common rule. You recover if you are 50% or less at fault; you are barred once you cross 51%.
  • Pure contributory negligence. The harshest rule, surviving in only a handful of places (Alabama, Maryland, North Carolina, Virginia, and the District of Columbia). If you are even 1% at fault, you may recover nothing — though exceptions and doctrines like "last clear chance" can apply.
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Why fault is fiercely contested in rail cases

Railroads and transit agencies know these rules, so their defense often focuses on shifting blame onto you — you crossed against a signal, you stood too close to the platform edge, you were distracted. Pushing your fault from 20% to 51% in a modified-bar state does not just shrink the claim; in a 51%-bar state it can erase it. That is why documenting the operator's negligence (signal failure, speed, crossing-maintenance lapses) matters so much — see how attorneys prove railroad negligence. Note that for railroad employees, FELA uses a more worker-friendly pure comparative standard with no bar at all.

Using the result

Plug the recoverable figure into the settlement estimator as your starting gross, then subtract fees and liens. Remember: the fault percentage is itself negotiated and litigated — an experienced attorney's main job here is keeping your number low.

Frequently asked questions

Can I still recover if the accident was partly my fault?

In most states, yes — your recovery is just reduced by your percentage of fault. The exceptions are the few pure-contributory jurisdictions (Alabama, Maryland, North Carolina, Virginia, and DC), where even slight fault can bar recovery, and modified-comparative states where crossing a 50% or 51% threshold bars you.

What is the difference between the 50% and 51% bar?

Under a 50% bar, you are barred at exactly 50% fault or more. Under the 51% bar (more common), you can still recover at exactly 50% but are barred once you are 51% or more at fault. The practical effect shows up only in cases where fault is split right around half.

Who decides my percentage of fault?

In a settlement, it is negotiated between the parties; in a trial, the jury assigns percentages. Because the number is contested rather than fixed, strong evidence of the railroad's negligence and good legal advocacy directly protect your recovery.

Important: This tool is an educational estimate, not legal or financial advice, and is not a prediction or guarantee of any outcome. Actual results depend on the facts of your case, your state's law, and negotiations. Confirm everything with a licensed attorney in your state.
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Mustafa Bilgic
Editor & Publisher

Independent educational resource — not legal advice. This tool gives a general, educational estimate from public sources; figures and deadlines vary by state and change over time, so confirm your situation with a licensed attorney. Last updated 26 June 2026.