Michigan requires registration for most boats, jet skis, and other watercraft you operate on public water

If you own a boat, personal watercraft (jet ski), or sailboat in Michigan, you need to register it with the state before you can legally use it on public waters. Registration is handled by the Michigan Department of Natural Resources (MDNR), not your local Secretary of State office. The process is straightforward: you provide proof of ownership, pay a fee based on your watercraft's length, and receive registration numbers that must be displayed on the hull.

Michigan watercraft registration is separate from vehicle registration and has its own renewal cycle. Unlike car registration, which renews on your birthday, watercraft registration runs on a calendar year — it expires December 31 each year. You can renew starting November 1 of the year before expiration.

Key Takeaways

  • Michigan requires registration for boats, jet skis, sailboats, and most other watercraft used on public water, with limited exceptions for very small vessels and non-motorized craft.
  • Registration fees are based on the length of your watercraft and range from under $10 for small boats to over $100 for larger vessels, with no statewide sales tax added to the fee itself.
  • You can register or renew online through the MDNR website, by mail, or in person at a Secretary of State office, and the process typically takes one to two weeks by mail.
  • Registration numbers must be displayed on both sides of the hull in characters at least three inches tall, and you must carry your registration certificate while operating the watercraft.
  • Watercraft registration expires December 31 each year and can be renewed starting November 1, regardless of when you originally registered.

What watercraft need to be registered in Michigan

Most motorized watercraft require registration, including boats with outboard or inboard motors, personal watercraft (jet skis), and houseboats. Sailboats with motors also need registration. Non-motorized sailboats, canoes, kayaks, and inflatable boats under 16 feet with no motor are generally exempt, though some local jurisdictions may have additional rules.

If you own a watercraft that was previously registered in another state, you must register it in Michigan within 30 days of bringing it into the state. Watercraft used only on private property or private lakes do not require state registration, but you should verify with the property owner or lake association whether local registration is required.

Documents and information you need to register

You will need proof of ownership, which can be a bill of sale, manufacturer's certificate of origin, previous registration from another state, or a title document if your watercraft has one. Michigan does not issue watercraft titles in all cases — many boats are registered by hull identification number (HIN) without a separate title document. If your watercraft came with a title from another state, bring that.

You will also need the watercraft's hull identification number (HIN), which is usually located on the starboard (right) side of the hull near the top edge. If the watercraft is motorized, you may need the motor's serial number as well. Have the owner's name, address, and phone number ready, along with the watercraft's length in feet and the year it was manufactured.

How to register online, by mail, or in person

Online registration is available through the MDNR website at michigan.gov/dnr. You can register a new watercraft or renew an existing registration online using a credit or debit card. Online registration is processed when ready, and you can print a temporary registration number to display while you wait for your physical registration numbers to arrive by mail — usually within one to two weeks.

By mail, send the completed registration form (available on the MDNR website), proof of ownership, and payment to the address listed on the form. Processing takes two to three weeks. In person, you can visit any Michigan Secretary of State office with your documents and payment. The office will submit your registration to the MDNR, and you will receive your registration numbers by mail.

If you are registering a watercraft for the first time in Michigan, online registration is the fastest option because you receive temporary numbers when ready. If you are renewing, you can renew online or by mail without visiting an office.

Registration fees and what they cover

Michigan watercraft registration fees are based on the length of your vessel. Boats under 16 feet cost around $10 to $20; boats 16 to 26 feet cost roughly $30 to $50; boats 26 to 40 feet cost approximately $60 to $90; and boats over 40 feet cost $100 or more. Exact fees change annually, so check the MDNR website for the current year's schedule. Personal watercraft (jet skis) have their own fee structure, typically in the $20 to $40 range.

The registration fee covers your registration certificate and the right to display registration numbers on your watercraft for one calendar year. It does not include any sales tax or documentation fees, though some Secretary of State offices may charge a small processing fee if you register in person. Renewal fees are the same as initial registration fees.

Displaying registration numbers and carrying your certificate

Once you receive your registration numbers, you must display them on both the port (left) and starboard (right) sides of the hull in characters at least three inches tall. The numbers are typically provided as decals or stickers that you explore yourself. Numbers must be in a contrasting color to the hull (dark numbers on light hulls, light numbers on dark hulls) and positioned so they are clearly visible from the water.

You must carry your physical registration certificate with you whenever you operate the watercraft on public water. A photocopy or digital image on your phone is not sufficient — Michigan law requires the original certificate to be on board. If you are stopped by a conservation officer or law enforcement, you must produce both the certificate and proof that the registration numbers are properly displayed.

Renewing your watercraft registration

Watercraft registration expires on December 31 each year, regardless of when you originally registered. You can renew starting November 1 of the year before expiration. Renewal is simpler than initial registration — you do not need to provide proof of ownership again if the watercraft is already registered in your name in Michigan.

Renew online through the MDNR website, by mail using the renewal notice sent to you, or in person at a Secretary of State office. Online renewal is processed when ready. If you miss the December 31 important date, you cannot legally operate the watercraft until you renew, and operating an unregistered watercraft carries fines starting at $100.

What happens if your watercraft is damaged, sold, or lost

If your registered watercraft is destroyed or permanently damaged and no longer usable, contact the MDNR to cancel the registration. You may be able to receive a refund of a portion of your registration fee if the watercraft is destroyed early in the registration year, though refunds are not may provide.

If you sell your watercraft, notify the MDNR in writing with the buyer's information so the registration can be transferred. The new owner must register the watercraft in their name before operating it. If your watercraft is lost or stolen, report it to local law enforcement and the MDNR. Once reported, the registration is suspended, and you can request a refund or credit toward a new watercraft registration.

Frequently Asked Questions

Do I need to register a canoe or kayak in Michigan?

Non-motorized canoes and kayaks do not require state registration. However, some private lakes and local jurisdictions have their own rules, so check with the property owner or lake association before launching. Inflatable boats under 16 feet without motors are also exempt from state registration.

Can I use my watercraft while waiting for my registration numbers to arrive?

Yes, if you register online. The MDNR provides temporary registration numbers that you can print and display when ready while your permanent decals are mailed to you. If you register by mail or in person, you should wait until you receive your permanent numbers before operating the watercraft on public water.

What if I move to a different address in Michigan?

Contact the MDNR with your new address to update your registration. You do not need to re-register the watercraft — just notify them of the address change. You can do this online, by mail, or at a Secretary of State office.

Is there a penalty for operating an unregistered watercraft?

Yes. Operating an unregistered watercraft in Michigan can result in fines starting at $100 and potentially higher penalties depending on the circumstances. Conservation officers conduct water patrols and check registrations, especially during busy boating seasons.

Can I register a watercraft I just bought from out of state?

Yes. You have 30 days from bringing the watercraft into Michigan to register it. Bring the out-of-state registration or bill of sale as proof of ownership. If the watercraft has an out-of-state title, bring that as well. You can register online when ready and display temporary numbers while waiting for permanent decals.