How to register a boat in New Hampshire
Register before you operate
Any vessel operated on New Hampshire public waters — inland, tidal, or coastal — must be registered before use and display the DMV-issued bow number. There is no fixed number of days after purchase; the requirement is simply that the boat be registered before it goes on the water, and boats can be registered any time of year.
Register through a town clerk, agent, or the DMV
New Hampshire boats cannot be registered or renewed online. Register in person at a town or city clerk who is a certified boat agent, at a marina or retail store that is an authorized agent, or with the Concord DMV in person, by drop-box, or by mail. Town clerks and agents add a small local processing fee.
Bring your application, bill of sale, and ID
You need a completed NH Boat Registration Application (form RDMV612), a signed bill of sale and/or Certificate of Origin or prior registration listing the year, make, model, length, horsepower, fuel, hull material, HIN, and both parties, and a valid government photo ID. A homemade boat or one with a missing HIN needs a Verification of Vessel Identification. If the boat was previously registered in New Hampshire, supply the original bow number. New Hampshire charges no sales tax on boats.
Display your number and decals
Display the bow number — "NH" plus four digits plus one or two letters (for example, NH 1234 AB) — on both sides of the bow, along with the validation decal. As of 2025 New Hampshire uses a two-decal system: a registration decal plus a boat-fee decal.
New Hampshire registration fees
New Hampshire sets the base registration fee by length (RSA 270-E:5), then adds fixed statutory charges on top of every registration — a boat-fee decal, a public boat-access contribution, a fish-and-game search-and-rescue fee, and the agent's processing fee — so the amount at the counter runs roughly $23–24 above the base figures below. New Hampshire charges no sales tax on boats.
| Class | Vessel length | Base fee |
|---|---|---|
| Up to 16 ft | Up to 16 ft | $24.00 |
| Over 16 ft to 21 ft | Over 16 to 21 ft | $34.00 |
| Over 21 ft to 30 ft | Over 21 to 30 ft | $52.00 |
| Over 30 ft to 45 ft | Over 30 to 45 ft | $72.00 |
| Over 45 ft | Over 45 ft | $92.00 |
Base registration fees under RSA 270-E:5; add the statutory boat-fee decal, boat-access and search-and-rescue fees, and a $5 agent fee (plus $2 for tidal/coastal vessels). Confirm the current total with a town clerk, an authorized agent, or the Concord DMV at (603) 227-4030.
Titling in New Hampshire
New Hampshire does not title boats. It is a registration-only state, and the Certificate of Registration is the ownership record — there is no boat-title system and no title fee. This is the cleanest version of a no-title state: nothing above a length or model-year threshold gets titled.
A federally documented vessel is still subject to New Hampshire's requirements if it operates on state waters — documentation does not waive the state obligation. Documented vessels display their federal official number and name rather than an "NH" bow number (they are exempt from state numbering, not from the boat fee), and are expected to pay the New Hampshire boat fee and display the boat-fee decal. Confirm the precise documented-vessel handling with the DMV; the relationship between the federal document and the state registration is explained in state registration vs USCG documentation.
HIN requirements
Boats built in 1973 or later must carry a 12-digit Hull Identification Number — decode it with the HIN decoder to confirm the manufacturer and model year match your bill of sale before you register.
A homemade boat, or one with a missing or unreadable HIN, requires a Verification of Vessel Identification: the hull is inspected and verified, and an identifying number is recorded so the vessel can be registered. Submit that verification with the RDMV612 application. Because the exact inspecting office and form details are not published in full online, contact the DMV Boat Registration section at the Concord office to arrange the verification for a no-HIN or homemade hull.
Renewal
New Hampshire boat registrations are annual and every registration expires December 31 of the year issued — a boat registered mid-year still expires that December 31, not on the purchase anniversary. Each December the DMV mails a renewal notice to the registrant; renew at a town clerk, an authorized agent, or by mail with the signed notice or prior registration. There is no online renewal and no published grace period, so operating after December 31 without a current registration is a violation.
Exemptions
Exempt from registration: sailboats under 12 feet; rowboats, canoes, kayaks, and craft powered only by sail, oars, paddles, or human power (any motor removes the exemption); vessels registered in another state or country temporarily using New Hampshire waters for 30 consecutive days or less; and vessels owned or operated by the U.S. government. Note that a boat spending more than half its time on New Hampshire waters must register here even within the 30-day visitor window, and that as of January 1, 2025 the exemption section was retitled to cover the boat-fee decal as well.
Frequently asked questions
Does New Hampshire title my boat?
No. New Hampshire does not title boats — it is a registration-only state. Your Certificate of Registration is the ownership document, and there is no title fee. Nothing gets titled above any length or age.
Can I register or renew my boat online in New Hampshire?
No. Unlike cars, New Hampshire boats cannot be registered or renewed online. You must use a town or city clerk who is a certified boat agent, an authorized marina or retail agent, or the Concord DMV in person, by drop-box, or by mail.
When does my New Hampshire boat registration expire?
December 31 of the year it was issued, no matter when during the year you registered. The DMV mails a renewal notice each December, and you renew through a town clerk, an agent, or by mail.
My boat is Coast Guard documented — do I still deal with New Hampshire?
Yes, if you operate it on New Hampshire waters. Documented vessels aren't fully exempt: they display their federal number and name instead of an NH bow number, but they are still expected to pay the New Hampshire boat fee and display the boat-fee decal. Confirm the exact handling with the DMV.
How long can I use my out-of-state boat before registering in New Hampshire?
Up to 30 consecutive days on a valid out-of-state or foreign registration. Beyond that — or if the boat spends more than half its time on New Hampshire waters — you must register it in New Hampshire.
Primary sources
Last verified .
- NH DMV — Boat Registrations (retrieved 2026-07-16)
- NH DMV — New Boat Registration (retrieved 2026-07-16)
- NH DMV — Authorized Boat Agents (retrieved 2026-07-16)
- RSA 270-E:5 — Boat registration fees (retrieved 2026-07-16)
- RSA 270-E:4 — Exemptions from registration and boat-fee decal (retrieved 2026-07-16)
Independent reference tool — not affiliated with, endorsed by, or sponsored by the U.S. Coast Guard or the National Maritime Center. Vessel data is derived from public USCG sources and may lag official records; always verify with the issuing authority.
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