New Hampshire Car Insurance Requirements: Minimums, Fault Rules & Penalties

New Hampshire stands alone as the only state in the country that does not require drivers to carry auto insurance. That distinction does not mean consequences are absent — drivers are still fully liable for any harm they cause on the road, and an uninsured driver who cannot cover those costs faces license suspension and registration loss. Most New Hampshire drivers choose to carry insurance because the practical risk of going without it is substantial.

Financial responsibility thresholds

New Hampshire does not set mandatory insurance limits, but the state's financial responsibility law establishes a benchmark used after accidents:

Coverage	State-recommended minimum
Bodily injury per person	$25,000
Bodily injury per accident	$50,000
Property damage per accident	$25,000

Drivers who purchase a policy typically carry at least 25/50/25 to meet this threshold. Higher limits are advisable — medical costs from a single-vehicle injury accident can exceed these amounts, and a multi-person crash can multiply that exposure quickly. Without a policy in place, every dollar of damage above what you can personally pay remains your personal debt.

Fault system

New Hampshire is an at-fault state using modified comparative fault with a 51% bar. After a collision, fault is allocated among the parties involved. If your share of fault is 50% or less, you may recover damages from the at-fault party, reduced proportionally by your own fault percentage. If you are found 51% or more responsible, you are barred from recovering anything from the other driver.

Uninsured motorist coverage is available as an add-on and is worth carrying. Because New Hampshire permits drivers to go without insurance, a meaningful number of vehicles on the road have no liability coverage. If one of those drivers hits you, UM coverage is your primary protection.

SR-22 requirements

Even without a general insurance mandate, New Hampshire courts can impose an SR-22 requirement as a condition of maintaining driving privileges after serious convictions. Triggering events include:

• A DUI or DWI conviction
• Certain other serious traffic offenses as ordered by the court or DMV

The SR-22 is a certificate filed by your insurer directly with the NH DMV confirming that you carry at least the state's recommended minimum limits. The standard filing period is 3 years from the date the requirement is imposed. A policy lapse during that window requires your insurer to notify the state, which typically triggers an immediate license suspension.

After a DUI conviction, insurance is no longer optional for that driver — it becomes a mandatory condition of any driving privilege going forward.

Consequences of driving uninsured after an accident

New Hampshire does not issue fines simply for failing to carry insurance. The consequences attach when an uninsured driver causes an accident and cannot satisfy the resulting financial obligations:

• License suspension until the driver demonstrates financial responsibility to the NH DMV
• Vehicle registration suspension
• Full personal liability for all damages and injuries — there is no insurer absorbing the exposure
• Mandatory insurance requirement following a DUI conviction

Reinstating suspended driving privileges requires filing proof of financial responsibility and paying any applicable reinstatement fees. The cost of maintaining a policy is typically far lower than the financial exposure created by a serious uninsured accident.

For coverage options that meet New Hampshire's recommended minimums, request a quote through AIS.