New Hampshire Personal Injury Claims: Deadlines, Fault & What to Do

If you were injured in New Hampshire, two rules shape your claim more than any others: how long you have to file, and how shared fault is handled. Here is the general picture — and where New Hampshire differs from other states.

How long you have to file

New Hampshire generally allows 3 years from the date of injury to file most personal injury lawsuits. That is the general rule — different claim types (medical malpractice, wrongful death, property damage) often carry their own periods, exceptions can pause or shorten the clock, and deadlines change when a government entity is involved.

Claims against a city, county, or the state itself usually require a formal notice filed on a far shorter timeline — often a matter of months. If any government body might be involved in your injury, treat your timeline as urgent.

What if the accident was partly your fault?

New Hampshire follows modified comparative negligence (51% bar). You can generally recover as long as you were not more at fault than the other side; above that threshold, recovery is barred. Your award is reduced by your share of blame.

Practically, this means the percentage of fault assigned to you is negotiated, not fixed — and the insurance company’s opening position is a bargaining stance, not a ruling. Do not conclude you have no case before anyone has examined the evidence.

Worth knowing about New Hampshire

New Hampshire follows a three-year general rule with modified comparative fault.

What to do now

• Get medical care and follow through with treatment — gaps in care are the most common way claims lose value
• Preserve evidence: photos, reports, witness contacts, and anything showing how the injury happened
• Be careful with recorded statements to the other side’s insurer
• Confirm your actual deadline with an attorney licensed in New Hampshire rather than relying on general rules