This page explains the concepts so you know what to ask about. It does not list the rules for any specific state; those specifics, and how they apply to you, should come from a licensed attorney in your state.

Filing deadlines (statute of limitations)

Every state sets a statute of limitations, a hard deadline to file a claim. It varies by state and is commonly around two to three years for injury claims, but it can be shorter or longer, and special situations can change it.

Missing the deadline can permanently bar your claim, no matter how strong it is. Because the clock is already running, it is wise to learn your state's deadline early rather than assume you have plenty of time.

Comparative vs. contributory negligence

States handle shared fault differently. Many use comparative negligence, where your recovery is reduced by your percentage of fault (and in some states barred if you are 50 or 51 percent or more at fault).

A few states use strict contributory negligence, where being even slightly at fault can bar recovery entirely. These differences are significant, which is why the same facts can lead to very different results depending on the state.

No-fault states and why state matters

Some states use a no-fault system, where your own insurance pays certain costs after a crash regardless of who caused it, often with limits on when you can step outside that system to sue. Other states are at-fault (tort) states with different procedures.

Between deadlines, fault rules, no-fault systems, and coverage requirements, your state shapes nearly every part of a claim. A calculator cannot account for this. An attorney licensed in your state can.