How to Register a Boat Without a Title in Michigan (2026)

Michigan allows boats under 20 ft with detachable engines to register without a title. For boats that need titles, learn about the surety bond process using forms TR-121 and TR-205.

Published: 2026-03-14 · Updated: 2026-03-18 · 10 min
Older wooden fishing boat docked at a rural Michigan lakeside dock in autumn

When You Don't Need a Title in Michigan

Michigan has a unique titling threshold that benefits many small boat owners. A title is only required for watercraft that meet one of these criteria: the vessel is 20 feet or longer, or the vessel has a permanently affixed engine (inboard or sterndrive motor) regardless of length.

This means a large category of boats can be registered and operated in Michigan without ever needing a title:

Boat TypeTitle Required?Why
14 ft aluminum with outboard motorNoUnder 20 ft + detachable engine
18 ft bass boat with outboardNoUnder 20 ft + detachable engine
16 ft bowrider with I/O sterndriveYesPermanently affixed engine
22 ft pontoon with outboardYes20 ft or longer
12 ft jon boat with trolling motorNoUnder 20 ft + detachable motor

For boats that do not require titles, ownership can be transferred using the back of the registration form or a comprehensive bill of sale. This makes Michigan one of the simpler states for buying and selling smaller boats. For an in-depth comparison, see our title vs. registration guide.

Registering a No-Title Boat: Step by Step

If you are buying or already own a boat that falls below Michigan's title threshold, here is how to register it without a title:

Registering a Boat Without a Title in MichiganOption A: Has RegistrationSeller completes back ofregistration cardOption B: No RegistrationCreate comprehensiveBill of SaleBoth OptionsBring valid photo ID+ 6% use tax paymentVisit Michigan Secretary of State OfficeBoth buyer and seller visit together (recommended)Receive new MC registration number + 3-year stickers

Option A — Seller has registration: The seller signs the back of the watercraft registration card, filling in the buyer's name, address, date, and sale price. Both parties then visit a Secretary of State office to complete the transfer.

Option B — No registration exists: If the registration has been lost or the boat has never been registered, prepare a detailed bill of sale that includes the boat's year, make, Hull Identification Number (HIN), any previous MC number, full names and addresses of both buyer and seller, sale price, and date. Both parties should sign the bill of sale.

Registering a boat without a title in Michigan

Bill of Sale Requirements

When a title is not available and there is no registration to transfer, the bill of sale becomes the primary ownership document. Michigan's Secretary of State accepts a comprehensive bill of sale for boats that do not require titles, but the document must be thorough:

Required InformationDetails
Hull Identification Number (HIN)12-character code on transom; critical for verification
Year, Make, ModelAs accurate as possible; manufacturer name if known
Length and Hull MaterialOverall length in feet; fiberglass, aluminum, wood, etc.
Michigan MC Number (if any)Previous registration number, if the boat was ever registered in MI
Seller's Full Name & AddressLegal name matching government ID; signature required
Buyer's Full Name & AddressLegal name matching government ID; signature required
Sale Price & DateActual transaction amount; 6% use tax will be assessed on this
Motor InformationIf motorized: engine make, horsepower, serial number

A notarized bill of sale, while not strictly required for boats under the title threshold, adds an extra layer of legal protection and is strongly recommended for any purchase over $1,000. Keep multiple copies of all documentation.

The Surety Bond Process: When Title Is Required but Unavailable

If your boat requires a title (20 ft+ or permanently affixed engine) but the previous owner cannot provide one, Michigan offers a surety bond pathway. This is the legal workaround for obtaining a title when standard documentation is missing.

The surety bond process involves three key Michigan Department of State forms:

FormNamePurpose
TR-121Vehicle Uniform Surety BondThe actual surety bond form filed with the SOS
TR-205Self-Certification of Vehicle OwnershipYour sworn statement about how you acquired the boat
TR-54Hull Identification Number InspectionPhysical verification of the HIN by law enforcement (required if no existing MI record)

The surety bond amount in Michigan is twice the fair market value of the watercraft. The bond must come from a surety company licensed to operate in Michigan. The actual cost you pay to a bonding company (the premium) is typically 1-3% of the bond amount — so for a $10,000 boat, the bond face value is $20,000, but your out-of-pocket premium might be $200-$600.

Surety Bond Step-by-Step Process

Here is the complete process for obtaining a Michigan boat title through the surety bond pathway:

Michigan Bonded Title Process1. Determine boat value(NADA Guide, appraisal, or comparable sales)2. Purchase surety bond(Bond amount = 2x boat value; premium ~1-3%)3. Complete forms TR-121 + TR-205(Self-certify ownership + attach bond)4. Get HIN inspection (TR-54)(Law enforcement verifies HIN at boat location)5. Submit everything to Secretary of State → Receive bonded title ($5 or $10)Title will show "BONDED" notation for 3 years6. After 3 years with no claims → Bond released, title becomes "clean"Request bond release from surety company; SOS can reissue clean title

Step 1 — Determine value: Get a fair market value assessment using NADA Guides, BUC Used Boat Values, recent comparable sales, or a marine surveyor's appraisal. The SOS may question unreasonably low valuations.

Step 2 — Purchase bond: Contact a surety bond company licensed in Michigan. Provide the boat's details and your estimated value. The bond amount will be twice the assessed value. Your actual premium is typically 1-3% of the bond face value.

Step 3 — Complete paperwork: Fill out Form TR-121 (the bond itself, completed by the bonding company) and Form TR-205 (your self-certification of how you acquired the vessel — gift, private sale, auction, abandonment, etc.).

Step 4 — HIN inspection: If the boat has no existing Michigan record, request a Hull Identification Number inspection using Form TR-54. A Michigan State Police trooper, sheriff's deputy, or DNR Conservation Officer can perform this inspection. They verify the HIN stamped on the transom matches your paperwork.

Step 5 — Submit to SOS: Bring all forms, the surety bond, bill of sale, valid photo ID, and 6% use tax payment to a Secretary of State office. Pay the $5 standard or $10 instant title fee.

Cost Breakdown: Bonded Title

The bonded title process adds costs beyond a standard title transfer. Here's a realistic breakdown for a $10,000 boat:

Cost ItemAmountNotes
Surety bond premium$200-$6001-3% of $20,000 bond face value
Title fee$5-$10Standard ($5) or instant ($10)
6% use tax$600On purchase price
3-year registrationVaries$14-$448 based on length
Estimated total$860-$1,660For a $10,000 boat (20+ ft)

While the bonded title adds cost, it's the only legal pathway to title a boat without proper documentation. The good news is that Michigan's base title fees ($5/$10) keep the process affordable compared to states where title fees alone can exceed $50. For a detailed fee breakdown, see our Michigan title transfer guide.

When to Walk Away from a No-Title Boat

Not every no-title boat is a good deal. There are legitimate red flags that suggest walking away, even if the price is attractive:

  • Seller refuses to provide bill of sale — This may indicate stolen property
  • HIN has been removed, defaced, or altered — This is a federal crime and the boat may be stolen or salvaged
  • Seller cannot explain how they acquired the boat — Legitimate ownership should have a traceable history
  • Price is dramatically below market value — While this could indicate a motivated seller, it can also signal problems
  • Multiple lien holders — A surety bond does not eliminate existing liens; you could inherit debt

Before purchasing any boat without a title, consider running a boat history report using the HIN. This can reveal theft records, insurance total losses, accident history, and outstanding liens. See our boat lien check guide for more information.

Alternatives to the Surety Bond

Before committing to the surety bond process, explore these alternatives that may provide the documentation you need:

  • Contact the previous owner: Ask them to apply for a duplicate title ($5) at any SOS office — this is the simplest solution
  • Search the SOS database: The Michigan SOS may have records of the boat's registration history even if the physical documents are lost
  • USCG documentation: For vessels 5 net tons or larger, USCG documentation provides federal proof of ownership that bypasses state title requirements entirely. See our USCG documentation guide
  • Court-ordered title: In complex situations (estate disputes, abandoned vessels), a court order can establish ownership and compel the SOS to issue a title

Each alternative has trade-offs in time, cost, and complexity. For most buyers, getting the previous owner to apply for a duplicate title ($5) is the fastest and cheapest path forward.

Buying Tips: Protecting Yourself

When buying a boat without standard title documentation in Michigan, follow these best practices to protect yourself legally and financially:

  • Verify the HIN physically: Check the HIN plate on the transom matches what the seller claims — bring a flashlight and camera
  • Get a written bill of sale: Even for boats under the title threshold, a detailed bill of sale is your proof of legitimate purchase
  • Both parties visit SOS together: Having both buyer and seller present at the Secretary of State office eliminates most ownership disputes
  • Pay by traceable method: Use a check, cashier's check, or bank transfer — avoid cash-only transactions for boats over $1,000
  • Photograph everything: Take photos of the boat, HIN, seller's ID, and all documents before and during the transaction
  • Keep copies for 5+ years: Store copies of the bill of sale, registration, and any correspondence related to the purchase

For used boat purchasing advice across all states, see our comprehensive guide to registering used boats.

Frequently Asked Questions

Can I register a boat without a title in Michigan?
Yes, if the boat is under 20 feet long and has a detachable engine (outboard). These boats do not require titles in Michigan and can be registered using a bill of sale or the back of an existing registration form. Boats 20 feet or longer, or with permanently affixed engines, must have titles.
How much does a Michigan boat surety bond cost?
The surety bond face value must equal twice the boat's fair market value. However, you only pay a premium of 1-3% of the bond amount. For a boat valued at $10,000, the bond face value is $20,000 and your premium would be approximately $200-$600. The bond is valid for three years.
What forms do I need for a Michigan bonded boat title?
You need three forms: TR-121 (Vehicle Uniform Surety Bond), TR-205 (Self-Certification of Vehicle Ownership), and TR-54 (HIN Inspection, if no existing Michigan record). Additionally, you'll need a bill of sale, valid photo ID, and payment for the title fee ($5-$10) and 6% use tax.
How long does a bonded title last in Michigan?
The surety bond is active for three years. During this period, the title will show a "BONDED" notation. If no ownership claims are filed within three years, the bond is released and you can request a clean title from the Secretary of State.
What is the difference between a detachable and permanently affixed engine?
A detachable engine (outboard motor) can be removed from the boat without structural modification. A permanently affixed engine (inboard or sterndrive/I/O) is built into the boat's hull. This distinction matters because boats under 20 feet with detachable engines do not require titles in Michigan, while boats with permanently affixed engines always require titles regardless of length.

Sources

  1. Michigan Secretary of State — Watercraft Titling and Surety Bonds (https://www.michigan.gov/sos/vehicle/boat)
  2. Michigan Department of State — Forms TR-121, TR-205, TR-54 (https://www.michigan.gov/sos)
  3. Michigan Legislature — Natural Resources and Environmental Protection Act, Part 801

This information is provided for reference purposes only. While we strive to keep data accurate and up-to-date, registration requirements, fees, and regulations may change without notice. Always contact your state's official registration agency for the most current and authoritative information before making any decisions.