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What happens if you get a second DWI in New Hampshire?

On Behalf of | May 14, 2026 | DWI Charges

You might feel a heavy sense of uncertainty right now that you have a second DWI charge. New Hampshire takes repeat offenses very seriously, and the consequences are structured to be significantly more rigorous than for your first offense.

Understanding the legal framework is the first step in regaining control, allowing you to better prepare for the process ahead and take proactive steps toward restoring your driving privileges.

Recognizing the mandatory jail requirements

Unlike a first offense, a second DWI conviction in New Hampshire carries mandatory time in a county correctional facility. The duration depends on how recently your first conviction occurred:

  • Within two years of the first offense: The law requires a 60-day sentence, with at least 30 consecutive days served in a county correctional facility.
  • Between two and ten years of the first offense: The law requires a 17-day sentence, with at least 5 consecutive days served.

Following your release, you generally have to adhere to a strict compliance schedule:

  • Mandatory victim impact panel: Completion of a qualified online victim impact panel program (minimum 3.5 hours).
  • Immediate IDCMP contact: Contact an Impaired Driver Care Management Program (IDCMP) within three business days of release.
  • Evaluation deadline: Completion of a full substance use disorder evaluation within 60 days of release.

Staying proactive with these timelines is an important part of complying with the court’s requirements and can help keep your progress toward license restoration on track.

Losing your license after a second DWI

A second DWI conviction carries a mandatory minimum three-year license revocation that the court cannot shorten. If you refused a chemical test at the time of your arrest, the New Hampshire Division of Motor Vehicles (DMV) may impose an additional two-year administrative suspension, and in many cases, these periods run consecutively.

Once eligible for restoration, you will be required to install an ignition interlock device (IID) in any vehicle you drive for a period of 12 months to two years.

Understanding the long-term financial Impact

The costs of a second conviction extend far beyond the mandatory minimum fine of $750. With the 24% penalty assessment, the baseline cost alone reaches nearly $1,000. Additional expenses include IDCMP evaluation fees, the victim impact panel, required treatment programs and monthly ignition interlock costs.

You will also likely need to maintain SR-22 insurance for several years, which typically drives up your monthly premiums significantly.

Moving forward with the right information

Facing these penalties can feel overwhelming, but understanding the requirements of DWI law is the first step in managing the road ahead. New Hampshire’s laws are strict, but they are clear about what is expected for reinstatement. Staying informed about your obligations ensures you do not face unnecessary delays.

When court requirements and DMV administrative rules intersect, professional guidance can help you work through the specific steps toward getting back behind the wheel.