New Hampshire Car Accident Laws
Last reviewed June 2026
Quick answer. New Hampshire is an at-fault state. You have 3 years to file a personal injury claim (RSA 508:4), and the state follows modified, 51% bar negligence (RSA 507:7-d). Minimum liability coverage is 25/50/25 (only if insurance is carried).
New Hampshire Car Accident Quick Facts
| System | At-fault (tort) |
|---|---|
| Filing deadline | 3 years (RSA 508:4) |
| Fault rule | Modified, 51% bar (RSA 507:7-d) |
| Threshold to sue | None. No injury threshold must be met to sue. |
| Minimum liability | 25,000 / 50,000 / 25,000 if the driver chooses to carry insurance; insurance is not mandatory in New Hampshire |
| Helmet law | New Hampshire does not require adult motorcyclists to wear helmets. |
Fault and Insurance in New Hampshire
New Hampshire is an at-fault (tort) state with a notable twist: it is one of the few states that does not require most drivers to carry auto liability insurance. Drivers must instead show financial responsibility. When the at-fault driver is uninsured, your own uninsured motorist coverage often becomes the primary source of recovery.
Minimum liability coverage is 25,000 / 50,000 / 25,000 if the driver chooses to carry insurance; insurance is not mandatory in New Hampshire.
How Shared Fault Works in New Hampshire
New Hampshire applies modified comparative negligence with a 51 percent bar, meaning you recover only if you are 50 percent or less at fault, with your award reduced by your share, codified at RSA 507:7-d. Insurers know these rules and often try to shift blame to cut what they pay, so understanding how fault is decided matters to the outcome.
The Filing Deadline in New Hampshire
Under RSA 508:4, you generally have 3 years from the date of the crash to file a personal injury claim in New Hampshire. Waiting risks both the deadline and the loss of evidence.
Motorcycle Helmet Law
New Hampshire does not require adult motorcyclists to wear helmets. Riders under 18 must wear one.
Local Context
Crashes happen across New Hampshire, from Manchester, Nashua, Concord, Derry to smaller towns and rural routes. Injury claims are typically handled through the New Hampshire Superior Court, and driver and crash records run through the New Hampshire Division of Motor Vehicles (DMV).
Talk to an Accident Attorney in New Hampshire
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Frequently Asked Questions
What Is the Deadline to File a Car Accident Claim in New Hampshire?
New Hampshire allows 3 years from the date of the crash for most personal injury claims, under RSA 508:4. After that, the claim is usually barred.
Is New Hampshire a No-Fault or At-Fault State?
New Hampshire is an at-fault (tort) state with a notable twist: it is one of the few states that does not require most drivers to carry auto liability insurance. Drivers must instead show financial responsibility. When the at-fault driver is uninsured, your own uninsured motorist coverage often becomes the primary source of recovery.
How Does Fault Affect My Recovery in New Hampshire?
New Hampshire follows modified comparative negligence with a 51 percent bar, meaning you recover only if you are 50 percent or less at fault, with your award reduced by your share (RSA 507:7-d).
What Is the Minimum Car Insurance in New Hampshire?
The minimum liability coverage in New Hampshire is 25,000 / 50,000 / 25,000 if the driver chooses to carry insurance; insurance is not mandatory in New Hampshire.
Related Guides
- No-fault vs at-fault states
- Statute of limitations by state
- Serious injury and verbal thresholds
- Motorcycle accident laws by state
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