Michigan boat registration is handled by the Michigan Department of Natural Resources, and you'll need your boat's hull identification number, proof of ownership, and a completed process form.

Every motorized boat and sailboat over 20 feet used on Michigan waters must be registered. Registration is valid for three years and costs between $10 and $30 depending on your boat's length. You can register in person at a Secretary of State office, by mail, or online through the Michigan Department of Natural Resources website.

The process takes about 15 minutes in person or one to two weeks by mail. Once approved, you'll receive registration decals to display on your boat's hull. Without current registration, you cannot legally operate your boat on Michigan waters, and you may face fines if stopped by a conservation officer.

Key Takeaways

  • All motorized boats and sailboats over 20 feet on Michigan waters must be registered with the Michigan Department of Natural Resources.
  • You need your boat's hull identification number, proof of ownership (bill of sale or title), and a completed Form REG 3807 to register.
  • Registration costs between $10 and $30 based on boat length and is valid for three years from the date issued.
  • You can register at any Secretary of State office, by mail to the DNR, or online through the Michigan DNR website.

What documents you need to bring or submit

Start by gathering your hull identification number (HIN), which is a 12-character code stamped on the starboard (right) side of your boat's hull near the top. If you cannot locate it, the boat's manufacturer or previous owner can provide it. You will also need proof of ownership — either a bill of sale, a previous registration, a title document, or a manufacturer's statement of origin if the boat is new.

Complete Form REG 3807, the Michigan Boat Registration process, which you can read from the Michigan DNR website or pick up at any Secretary of State office. The form asks for your name, address, the boat's description (length, type, color, engine type), and the HIN. If you are registering a boat you just bought, bring the bill of sale showing the purchase price and date. If the boat has a title, bring that instead.

You will also need to show a valid photo ID. If someone other than the owner is registering the boat, bring a notarized power of attorney or written authorization from the owner.

Registering in person at a Secretary of State office

Walk into any Secretary of State office with your completed Form REG 3807, proof of ownership, HIN, and photo ID. The staff member will verify your documents, process the registration, and collect the fee on the spot. Registration takes about 15 minutes. You will receive your registration decals when ready, along with a certificate of registration to keep in your boat.

Secretary of State offices are located in most Michigan cities and towns. You can find the nearest office and its hours on the Michigan Secretary of State website. No appointment is needed, though wait times vary by location and time of day. Bring cash or a debit card, as not all offices accept checks.

Registering by mail

Mail your completed Form REG 3807, proof of ownership, a copy of your photo ID, and a check or money order for the registration fee to the Michigan Department of Natural Resources, Watercraft Registration, P.O. Box 30028, Lansing, MI 48909. Include a cover letter with your name, phone number, and email address so the DNR can contact you if there are questions.

Processing by mail takes one to two weeks. The DNR will mail your registration decals and certificate to the address you provided on the form. If you need the registration sooner, use in-person registration or the online option instead. Keep a copy of everything you send for your records.

Registering online through the Michigan DNR website

Visit the Michigan Department of Natural Resources watercraft registration page and select the online registration option. You will create an account, enter your boat information, upload a photo of your HIN and proof of ownership, and pay the fee by credit or debit card. The system will verify your documents and issue your registration within a few business days.

Online registration is the fastest option if your documents are clear and complete. You will receive your decals and certificate by mail at the address you provide. Make sure your HIN photo is well-lit and shows the entire 12-character code, and that your proof of ownership is legible. If the DNR cannot read your documents, they will contact you to resubmit.

Registration fees and what they cover

Michigan boat registration fees are based on your boat's length. Boats under 20 feet cost $10 for three years. Boats 20 to 26 feet cost $20 for three years. Boats over 26 feet cost $30 for three years. These are the standard fees; some counties may charge a small additional county registration fee, which varies by location.

Your registration covers the right to operate your boat on all Michigan waters for three years. The decals you receive must be displayed on both sides of your boat's hull so conservation officers can verify your registration during inspections. Registration does not include insurance, launch fees, or mooring permits — those are separate.

Renewing your registration before it expires

Your registration expires three years from the date it was issued. About 30 days before expiration, you should renew to avoid operating without current registration. You can renew by mail, in person, or online using the same methods as initial registration. Bring or submit your current registration certificate, proof of ownership, and the renewal fee.

If your boat's length or ownership has changed since your last registration, you will need to provide updated information. If you let your registration expire, you must re-register as if it were new rather than straightforward renewing, which may require additional documentation. Renew early to avoid this step.

Frequently Asked Questions

Do I need to register a boat under 20 feet or a sailboat under 20 feet?

No. Michigan only requires registration for motorized boats of any size and sailboats over 20 feet. A motorized boat under 20 feet still needs registration. If you have a non-motorized sailboat under 20 feet, registration is not required, but you must still follow all boating safety laws.

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

Older boats or boats built before HIN requirements were standard may not have one. Contact the boat's manufacturer or the Michigan DNR directly — they can issue a number or help you locate one if it exists. Do not attempt to create or alter a HIN yourself, as this is illegal.

Can I register a boat I do not own yet?

No. You must own the boat or have written authorization from the owner to register it. Once you purchase the boat and receive the bill of sale or title, you can register it. If you are buying a boat from a dealer, ask them to handle the registration as part of the sale, or register it yourself once the paperwork is complete.

What happens if I operate a boat without current registration?

Michigan conservation officers can stop you and issue a citation. Fines for operating without registration can range from $50 to several hundred dollars depending on the violation. Your boat may also be impounded. Always carry your registration certificate in your boat and display the decals on your hull.

Do I need to re-register if I move to a different Michigan county?

No. Your Michigan registration is valid statewide regardless of which county you live in. You do not need to re-register when you move. However, if you move out of Michigan, you will need to register your boat in your new state if you plan to use it there.