Boat Registration in Illinois: Fees, Renewal, and Titling

Boat registration in Illinois is handled by the Illinois Department of Natural Resources (IDNR). If your boat has a motor of any kind, or if it’s a sailboat longer than 12 feet, you need to register it before putting it on the water. Fees run from $28 to $210 based on length, and the registration lasts three years.¹

Which Boats Have to Be Registered

The rule is simple: motor on board, or sailboat over 12 feet, means you register. Non-powered watercraft — canoes, kayaks, paddleboards — are exempt from registration, though they have a separate requirement covered further down.

A few other vessels are exempt from Illinois numbering:²

Boats with a valid registration from another state, as long as they aren’t in Illinois waters more than 60 consecutive days.
Boats owned by federal, state, or local government and used only for official purposes, provided they are clearly identifiable.
Vessels with a valid U.S. Coast Guard marine document, if they are used on Illinois waters 60 days or fewer in a calendar year. Beyond that, Illinois registration is required.
Watercraft entered in a Department-approved race, or built solely for racing and being readied for one.

How to Register Your Boat

Registration starts with the IDNR’s Watercraft Application, available on the IDNR website or at a local office. The form asks for your hull identification number (HIN), the vessel’s make, model, year of manufacture, and length.¹ You’ll submit proof of ownership with it, typically a bill of sale or a manufacturer’s statement of origin.

Once the IDNR processes the application and confirms any applicable use tax has been paid, it issues a Certificate of Number. That certificate is your official registration and has to stay on board whenever the boat is in use.³ The IDNR also issues expiration decals, which you affix to each side of the bow next to the assigned identification number.

How Much Registration Costs

Fees are set by vessel length, and the IDNR adds a $2 processing fee to every watercraft transaction.⁴

New Registration and Transfer Fees

Class 1 (under 16 feet): $28
Class 2 (16 to under 26 feet): $60
Class 3 (26 to under 40 feet): $160
Class 4 (40 feet and over): $210

These apply to first-time registrations and ownership transfers alike.⁵

Renewal Fees

Renewals run $10 less per class than a new registration:

Class 1: $18
Class 2: $50
Class 3: $150
Class 4: $200

USCG-documented vessels that have to register in Illinois pay the renewal-level fee for their class no matter whether the transaction is new, a transfer, or a renewal.⁴

Other Common Fees

Duplicate or corrected title, registration, or decals: $7 each
Title search: $7⁵

Don’t Forget the Use Tax

Buying a boat in Illinois also triggers a state use tax of 6.25 percent of the purchase price.⁶ The IDNR will not issue your Certificate of Number until the tax is confirmed paid. Dealers usually collect it at the point of sale. If you buy from a private seller or out of state, you pay it directly. Local use taxes can push the effective rate higher, so on a $30,000 boat, budget at least $1,875 in state tax on top of the registration fee.

Titling: A Separate Requirement

Registration and titling aren’t the same thing. Every registered boat longer than 21 feet must also carry a certificate of title from the IDNR.⁷ The title application usually goes in with the registration and asks for the owner’s name and address, a description of the vessel, purchase date, seller information, and any lienholder details.

Owners of smaller boats can title voluntarily, which makes selling later much smoother. When you buy from a dealer, the dealer has 15 days to send the title application to the IDNR. If the boat was previously titled in another state, include that out-of-state title with your application. Vessels with a valid U.S. Coast Guard marine document are exempt from Illinois titling.⁷

Renewing Your Registration

Illinois registrations run about three years. Every certificate expires on June 30 of the third year after it was issued.³ You can renew online, by mail, or in person at an IDNR office. The IDNR sends a renewal notice as a courtesy, but keeping the registration current is on you.

You’ll need the current registration number, proof of ownership, and the renewal fee for your class. Let the registration lapse and you’ll likely pay the higher new-registration rate when you come back, instead of the renewal rate.

Buying or Selling: The 15-Day Rule

When a boat changes hands, the buyer has 15 days from the purchase to apply to the IDNR for a transfer of the Certificate of Number.¹ The transfer needs a completed Watercraft Application, the seller’s original Certificate of Number, and proof of ownership transfer such as a bill of sale.

The transfer fee matches the new-registration fee for the vessel’s class, plus the $2 processing fee, and the transfer starts a fresh three-year period. The seller has an independent obligation to notify the IDNR of the sale within the same 15 days. Miss that window and the seller stays on record as the owner while the buyer has trouble proving the boat is theirs.

Canoes, Kayaks, and Paddleboards

Non-powered watercraft don’t get registered or titled in Illinois.² They’re not entirely unregulated, though. Anyone using a non-powered watercraft on Illinois waters must buy a Water Usage Stamp and affix it somewhere easily visible on the craft.⁸ The stamp is cheap, and paddlers often miss it on the assumption that “no registration” means no paperwork at all.

The Boating Safety Certificate

Registering your boat is separate from being allowed to drive it. Illinois requires a Boating Safety Certificate for anyone born on or after January 1, 1998, who operates a motorboat with more than 10 horsepower, including personal watercraft like jet skis.⁹ If you were born before that date, no certificate is required.

For younger operators the rules are stricter:

Under 10: cannot operate a motorboat at all, including personal watercraft.
Ages 10–11: may operate a motorboat over 10 horsepower only under the direct on-board supervision of a parent, guardian, or designated adult (18+); the supervising adult must hold a valid certificate if born on or after January 1, 1998.
Ages 12–17: may operate with a valid certificate, or under direct on-board supervision by a parent, guardian, or designated adult who holds one.⁹

The certificate is earned through an instructor-led or approved online course, and students must be at least 11 years old. Failing to show the certificate to a law enforcement officer on request is a petty offense on its own.¹⁰

What Happens If You Skip Registration

Operating a boat that should be registered but isn’t violates the Boat Registration and Safety Act. Any violation of the Act without a more specific penalty is classified as a petty offense, meaning fines but no jail.¹¹ Some violations carry more. Certain boating offenses committed with a child under 16 aboard carry a mandatory minimum fine of $500 and at least five days of community service.¹⁰

Running unregistered also means no Certificate of Number aboard and no identification numbers on the bow, both independently required. That gives officers multiple reasons to stop you and can complicate any insurance claim if things go wrong on the water. Given the fee levels, letting registration lapse rarely pays off.

1
Illinois General Assembly. Illinois Code 625 ILCS 45 – Boat Registration and Safety Act – Article III
2
Illinois General Assembly. Illinois Code 625 ILCS 45/3-12 – Exemption From Numbering Provisions
3
Justia. Illinois Code 625 ILCS 45 – Boat Registration and Safety Act – Article III
4
Illinois Department of Natural Resources. Watercraft Frequently Asked Questions
5
Illinois Department of Natural Resources. IDNR Boating Transaction Fees
6
Justia. Illinois Administrative Code Title 86 Part 153 Section 153.110
7
Illinois General Assembly. Illinois Code 625 ILCS 45 – Boat Registration and Safety Act – Article IIIA
8
Illinois Department of Natural Resources. Illinois Boat Registration and Safety Act Information
9
Illinois Department of Natural Resources. Boating Safety Education
10
Illinois General Assembly. Illinois Code 625 ILCS 45 – Boat Registration and Safety Act
11
Justia. Illinois Code 625 ILCS 45 – Boat Registration and Safety Act – Article XIa Penalties