Top What to Register

• Motorboats (including motorized canoes and rubber rafts).

• Sailboats 12 feet long and longer.

What Not to Register

• Canoes.

• Kayaks.

• Rowboats.

• Non-motorized sailboats less than 12 feet in length.

Top Exemptions

• Lifeboats.

• Government-owned boats.

• Registered boats from another state or country that are not kept in Montana for more than 90 consecutive days.

Top Requirements and Procedures

1. Complete a Montana boat registration form.
2. Mail it along with the fees (title, registration, fee-in-lieu of tax) to your county treasurer's office.
3. Obtain two free validation decals from any Montana Fish, Wildlife, and Parks office.

Top Fees

• Title: $10

• Registration: $15.50

• $50 Fee-In-Lieu-of-Tax:

• Motorboats between 10-16 feet in length.

• Sailboats between 12-16 feet in length.

• Personal watercraft less than 16 feet in length.

• Motorized pontoon less than 16 feet.

• $110 Fee-In-Lieu-of-Tax:

• Motorboats between 16-19 feet in length.

• Sailboats between 16-19 feet in length.

• Personal watercraft 16 feet or longer.

• Motorized pontoon 16 feet or longer.

• $280 Fee-In-Lieu-of-Tax:

• Motorboats 19 feet or longer.

• Sailboats 19 feet or longer.

Top Renewals and Replacements

All boat registrations are permanent. You must, however, renew your boat's free validation decals every three years. These can be obtained from any Montana Fish, Wildlife, and Parks office.

Renew Online

Currently unavailable.

Renew by Mail

Mail renewal notification to your county treasurer's office.

Renew in Person

Visit your county treasurer's office with your renewal notification.

Replace Lost Registration

Take your boat's registration number to the county treasurer. Cost: $2

Top Boater License

Teenagers ages 13 and 14 need a valid Montana motorboat operator's safety certificate to operate a boat without adult supervision.

Top Boater Safety Courses

• Online: Boater Exam.

• Home study: Contact a Fish, Wildlife and Parks office or call
  (406) 444-2535.

• Class: U.S. Coast Guard Auxiliary.

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