New Hampshire DWI Costs (2026)
State-specific DWI cost calculators, law summaries, and guides for New Hampshire.
The national average first-offense DWI total cost is $13,500. Use the calculators below to see how New Hampshire compares for your specific situation.
New Hampshire DWI Key Facts
New Hampshire DWI Calculators
New Hampshire DWI FAQ
How much does a DWI cost in New Hampshire?
A first-offense DWI in New Hampshire typically costs between $8,000 and $20,000+ when you add up fines ($500-$1,200), attorney fees ($1,500-$5,000), SR-22 insurance, ignition interlock, and lost wages. Use the calculator above for a personalized estimate.
What is the legal DWI term in New Hampshire?
New Hampshire uses the term "DWI" for impaired driving offenses. The legal BAC limit is 0.08% for adults, with enhanced penalties at 0.16% BAC.
How long is your license suspended for a first DWI in New Hampshire?
A first-offense DWI in New Hampshire carries a license suspension of 270 days, and a second offense carries 3 years (1095 days). Whether you can keep driving on a restricted license during that time is covered below.
Is an ignition interlock device required in New Hampshire?
A first-offense DWI in New Hampshire does not automatically require an ignition interlock device, though courts may order one at their discretion. A second offense requires 12 months of IID.
Does New Hampshire require SR-22 insurance after a DWI?
Yes. New Hampshire requires SR-22 high-risk insurance filing for 3 years following a DWI conviction. Insurance premiums typically increase by 50-100%.
When does a DWI become a felony in New Hampshire?
In New Hampshire, a DWI becomes a felony on the fourth offense within 10 years. A DUI involving injury or fatality is a felony in all states regardless of offense count.
Can a DWI be expunged in New Hampshire?
New Hampshire allows DWI expungement under certain conditions, typically after a waiting period of 10 year(s) following completion of your sentence. Estimated cost: $0-$1,500.
How long does New Hampshire have to charge you with a DWI?
In New Hampshire, the state generally must file DWI charges within 1 year of the alleged offense. This deadline reflects a first-offense misdemeanor DWI; felony cases can carry a longer filing window. If you are charged, an attorney can confirm how the deadline applies to your case.
Can you get a hardship or restricted license after a DWI in New Hampshire?
New Hampshire generally offers a hardship or restricted license that can let you keep driving for work, school, or treatment during part of a DWI suspension. Eligibility depends on your offense level and the court, and an ignition interlock device is often required, so confirm the current rules for your situation.
Speak with a New Hampshire DWI Attorney
A DWI attorney can often reduce your total costs significantly. Connect with an attorney near you for a free consultation.
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