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Free Maine Boat Bill of Sale

Maine boat sales involve two separate agencies depending on the transaction: the Maine Department of Inland Fisheries and Wildlife (DIFW) handles boat registration for all motorized boats and sailboats 12 feet or longer, while the Maine BMV handles titles for motorized boats 14 feet or longer using Form MVD-355. The Hull Identification Number (HIN) — a 17-character code on the transom — is the primary identifier for all Maine boat transactions. Maine's 5.5% Sales and Use Tax applies to private boat sales, and buyers should note that excise tax (which applies to motor vehicles) does not extend to boats in Maine, making the boat tax structure simpler than Maine car sales.

Maine Requirements: Transfer title within 30 days. 5.5% sales tax.

Seller Information

Buyer Information

Boat Details

Sale Information

Condition & Warranty

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Boats are sold with undisclosed liens far more often than cars. Our guide covers running a title search, decoding the HIN, separating boat and trailer titles, and what a Coast Guard document means for the transfer process. Read: Boat Bill of Sale: Complete Guide

Maine Boat Bill of Sale — What You Need to Know

Primary Form
Application for Certificate of Title
Agency
Maine Bureau of Motor Vehicles and Maine Department of Inland Fisheries and Wildlife
Primary ID Field
HIN (Hull ID Number)
Sales Tax
5.5%
Title Required
Yes
Maine titles motorized boats 14 feet or longer. Motorized boats under 14 feet and non-motorized boats are registered but not titled. Motorized boats and sailboats 12 feet or longer must be registered. Boat registration is administered by the Maine Department of Inland Fisheries and Wildlife (DIFW); titles for larger motorized boats use Maine BMV Form MVD-355.
Inspection
Not required

Sales Tax Details

Maine's 5.5% Sales and Use Tax applies to private boat sales. Paid at the time of registration through the Maine DIFW or authorized agent. Maine has no county-level sales tax add-on.

Exemption: Commercial fishing vessels used exclusively for licensed commercial fishing operations may qualify for sales tax exemptions under Maine law — consult the Maine Revenue Services for eligibility.

Inspection Requirements

Maine has no mandatory boat safety inspection at the point of private sale or registration transfer. The Maine DIFW enforces boating safety regulations on the water, including required safety equipment, but a pre-sale inspection is not required to complete title or registration.

Registration

Registration for this vehicle type is handled by Maine Department of Inland Fisheries and Wildlife — boat registration handled through DIFW offices and authorized agents statewide — not the same agency that handles cars in Maine. Plan for separate filings.

Maine Boat Sale — Step-by-Step Checklist

  1. Locate the 17-character Hull Identification Number (HIN) — stamped or molded into the transom (rear of hull) on the starboard side near the top.
  2. Determine whether the boat requires a title: motorized boats 14 feet or longer need a title transfer using Maine BMV Form MVD-355. Smaller motorized boats and sailboats need registration only through Maine DIFW.
  3. Seller endorses the Maine boat title (if one exists) over to the buyer, or provides the current Maine DIFW registration certificate for registration-only vessels.
  4. Both parties sign a bill of sale with the HIN, year, make, model, hull length, engine details (if motorized), sale price, date, and both parties' full names and addresses.
  5. Seller removes Maine boat registration numbers and stickers — the registration certificate and current numbers belong to the seller's registration record.
  6. Buyer completes Maine DIFW boat registration paperwork and, if applicable, Maine BMV Form MVD-355 for title.
  7. Buyer pays the 5.5% Maine Sales and Use Tax on the sale price plus applicable registration and title fees at the Maine DIFW office or authorized agent.
  8. Buyer affixes new Maine registration numbers to both sides of the bow per DIFW requirements, with numbers readable from port and starboard.

Common Pitfalls

  • Confusing the registration agency: Maine boat registration goes through the Maine DIFW, not the BMV (which handles motor vehicle registrations). Going to a BMV agent for boat registration will result in being redirected — contact Maine DIFW directly for boat-specific guidance.
  • Recording a VIN instead of the HIN: boats use a 17-character Hull Identification Number, not a vehicle VIN. The two formats look similar but are assigned by different systems. Use the HIN exactly as it appears on the hull — a single transposition creates document mismatches that delay registration.
  • Selling a titled motorized boat (14ft+) without a valid Maine title: if a title was never obtained or was lost, the seller must apply for a replacement title from the Maine BMV before the sale can be completed cleanly.
  • Assuming Maine excise tax applies to boats: unlike cars and trucks in Maine, boats are not subject to the annual excise tax. Only the 5.5% Sales and Use Tax applies to Maine boat purchases — buyers budget accordingly.

Pro Tip

Maine boat transactions are more straightforward than Maine car sales because excise tax does not apply — buyers owe only the 5.5% Sales and Use Tax at DIFW registration, with no mandatory pre-registration inspection. The most important pre-sale step is confirming whether the boat requires a title (motorized, 14 feet or longer) and whether a valid Maine title already exists. If it does not, the seller must resolve the title before the sale proceeds. Bring the HIN, the signed title or registration certificate, and the bill of sale to the Maine DIFW office in a single visit to complete registration efficiently.

Maine Boat Bill of Sale — FAQs

Which Maine agency handles boat registration and titles?
Maine boat registrations are administered by the Maine Department of Inland Fisheries and Wildlife (DIFW). Titles for motorized boats 14 feet or longer use Maine BMV Form MVD-355, but the DIFW handles the registration side of the transaction. For most buyers, the first stop is a Maine DIFW office or authorized agent. Find DIFW licensing offices at maine.gov/ifw.
Does Maine title all boats, or only larger ones?
Maine titles motorized boats 14 feet or longer. Motorized boats under 14 feet and non-motorized vessels (including sailboats) are registered with the Maine DIFW but do not receive a state-issued title. Any motorized boat, and any sailboat 12 feet or longer, must be registered in Maine — but the title requirement kicks in only at the 14-foot threshold for powered vessels.
Is Maine's excise tax owed when buying a boat from a private seller?
No. Maine's annual excise tax — which applies to motor vehicles and is paid at the town municipal office before registration — does not extend to boats. Maine boat buyers owe only the 5.5% Sales and Use Tax on the purchase price, paid at the time of DIFW registration. This makes the Maine boat tax structure simpler than Maine car sales, which trigger both sales tax and excise tax.
What is the HIN and where do I find it on a Maine boat?
The Hull Identification Number (HIN) is a 17-character alphanumeric identifier assigned to every boat built after November 1, 1972. On most boats it is molded or stamped into the transom — the flat rear surface of the hull — on the starboard (right) side near the top edge. The HIN is the boat's primary identifier on Maine DIFW registration paperwork and on the bill of sale. Record it exactly as it appears on the hull, character by character, to avoid document discrepancies at the DIFW office.