New Hampshire boat registration is handled by the New Hampshire Fish and Game Department, not the DMV, and covers any motorized vessel or sailboat over a certain size on state waters.

If you own a boat in New Hampshire or plan to use one on state waters, you need a registration number issued by Fish and Game. The process is straightforward: you submit an process with proof of ownership, pay a fee based on your boat's length, and receive a registration certificate and hull number decals. Unlike car registration, boat registration in New Hampshire does not renew annually — it lasts for three years.

The registration requirement applies to any motorized vessel, regardless of size, plus sailboats 14 feet or longer. Canoes, kayaks, and other non-motorized boats under 14 feet do not need registration. If your boat is documented with the U.S. Coast Guard, you still need a New Hampshire registration number for state waters.

Key Takeaways

  • New Hampshire boat registration is issued by Fish and Game and lasts three years, not one year like vehicle registration.
  • You need registration for any motorized boat of any size and for sailboats 14 feet or longer.
  • The fee depends on your boat's length, ranging from $20 to $100 or more for larger vessels.
  • You can register in person at a Fish and Game office, by mail, or online through the Fish and Game website.
  • You must display the registration number on both sides of your boat's hull in characters at least three inches tall.

What documents you need to register

To register a boat in New Hampshire, you need proof of ownership. If you bought the boat new, bring the manufacturer's statement of origin. If you bought it used, bring a bill of sale signed by the previous owner or a title document if one exists. If the boat is financed, bring the lienholder's information as well.

You also need to know your boat's hull identification number (HIN), which is usually stamped on the transom or starboard side near the waterline. If your boat is documented with the Coast Guard, bring that documentation number instead. Have the boat's length in feet ready — Fish and Game uses this to calculate the fee.

Registration fees and how they are calculated

New Hampshire boat registration fees are based on the boat's length overall, measured in feet. A boat under 16 feet costs $20. From 16 to 25 feet, the fee is $40. From 26 to 40 feet, it is $60. Boats 41 feet or longer pay $100. These fees cover the three-year registration period.

If you register a boat partway through the year, you do not pay a prorated fee — you pay the full three-year fee regardless of when you register. Your registration certificate will show the expiration date, which is three years from the month you register.

How to register online, by mail, or in person

The fastest route is online through the New Hampshire Fish and Game website. You fill out the process form, upload a photo of your proof of ownership, provide the HIN and boat length, and pay by credit card. Processing usually takes one to two business days, and you receive your registration certificate and decal instructions by email.

If you prefer to register by mail, read the boat registration process from the Fish and Game website, fill it out, and mail it with a copy of your proof of ownership and a check or money order to the address listed on the form. Mail processing takes longer — typically one to two weeks.

You can also register in person at any New Hampshire Fish and Game office. Bring your proof of ownership, the HIN, and payment. The office will issue your certificate and decals on the spot. Fish and Game has regional offices in Concord, Durham, and other locations; check the website for hours and locations near you.

What to do with your registration certificate and decals

When you receive your registration, you get a certificate and two decal stickers with your registration number. The decals must be displayed on both the port (left) and starboard (right) sides of your boat's hull. The characters must be at least three inches tall, in a contrasting color to the hull, and positioned so they are clearly visible from the water. Do not cover them with anything.

Keep your registration certificate on board whenever you operate the boat. New Hampshire Fish and Game officers can ask to see it during a routine check. If you lose the certificate, contact Fish and Game to request a replacement.

Renewing your registration before it expires

Your registration lasts three years from the month you register. You can renew it up to 90 days before the expiration date shown on your certificate. Renewal is simpler than initial registration — you do not need to provide proof of ownership again, just confirm that the boat information has not changed.

Renew online through the Fish and Game website, by mail using the renewal form, or in person at a Fish and Game office. The renewal fee is the same as the initial registration fee for your boat's length. If you do not renew before the expiration date, your registration becomes invalid and you cannot legally operate the boat on New Hampshire waters.

What happens if your boat information changes

If you sell the boat, the new owner must register it in their name. The registration does not transfer. The new owner should contact Fish and Game with the bill of sale and their proof of ownership to register it as a new boat.

If you change the boat's length (for example, by adding a cabin or extension), you must notify Fish and Game because the fee may change. If you change the hull identification number or the boat's primary use, contact Fish and Game to update your registration. You do not need to re-register — just report the change.

Frequently Asked Questions

Do I need a New Hampshire boat registration if my boat is registered in another state?

Yes. If you operate the boat on New Hampshire waters, you need a New Hampshire registration number regardless of where it is registered elsewhere. New Hampshire requires registration for all boats used on state waters, even temporarily.

What if my boat does not have a hull identification number?

Older boats, especially wooden or homemade vessels, may not have a HIN. Contact Fish and Game before you register — they can assign a number or accept an alternative identifier like the engine serial number if the boat has no HIN.

Can I register a boat I am still paying off?

Yes. If the boat is financed, provide the lender's name and address on the registration form. The lender becomes a lienholder on the registration, but you can still register and use the boat.

How long does it take to get a registration certificate?

Online registration usually takes one to two business days. Mail registration takes one to two weeks. In-person registration at a Fish and Game office is when ready — you walk out with your certificate and decals the same day.

What if I lose my registration decals?

Contact Fish and Game and request replacement decals. You will need to provide your registration number and boat information. There is usually a small replacement fee, and new decals are mailed to you within a week or two.