What Illinois boat registration is and who needs it

Illinois requires most boats to be registered with the Department of Natural Resources (DNR) before you operate them on state waters. Registration is how the state tracks boat ownership, collects a small fee, and ensures you have proof of ownership if you ever need to sell or transfer the boat.

You need to register any boat with a motor, including sailboats with auxiliary motors. Non-motorized boats like canoes, kayaks, and rowboats do not require registration. If you own a boat registered in another state and keep it in Illinois for more than 90 consecutive days, you must register it in Illinois instead.

Registration lasts three years from the date you receive your certificate. After that, you renew it through the same process. The DNR issues a registration number and decal that you display on the boat's hull.

Key Takeaways

  • Motorized boats must be registered with the Illinois DNR before you use them on state waters, and registration lasts three years.
  • You can register in person at a DNR office, by mail, or through an authorized agent like a boat dealer or bait shop.
  • You will need proof of ownership (title, bill of sale, or manufacturer's certificate), proof of your identity, and the boat's hull identification number (HIN).
  • Registration fees vary based on boat length and motor type, and you pay them once per three-year period.
  • Once approved, you receive a certificate and decal that must be displayed on the boat's hull in a visible location.

Documents you need to bring or submit

Before you register, gather proof that you own the boat. This can be a title, a bill of sale from the previous owner, or a manufacturer's certificate of origin if the boat is new. If the boat was titled in another state, bring that title document.

You will also need a valid photo ID — a driver's license, passport, or state ID card all work. Have the boat's hull identification number (HIN) ready; it is usually stamped on the starboard (right) side of the hull near the waterline, or on the transom (back) of the boat. If you cannot locate it, the DNR can help you identify it during registration.

If someone other than you owns the boat but you are registering it on their behalf, bring a power of attorney or written authorization from the owner, along with their ID information.

Where and how to register your boat

You have three main routes to register: in person at a DNR office, by mail, or through an authorized agent. The fastest is usually an authorized agent — boat dealers, marinas, and bait and tackle shops across Illinois can process registrations on the spot. They charge a small service fee on top of the registration fee.

To register by mail, read the boat registration form from the Illinois DNR website, fill it out completely, and mail it with your proof of ownership and a check or money order for the registration fee. Mail it to the address listed on the form. Processing by mail typically takes two to three weeks.

If you prefer to register in person, visit any DNR office during business hours. The DNR has regional offices in Springfield, Havana, and other locations. Call ahead to confirm hours and to ask whether you need an appointment, as some offices now require them.

Registration fees and what affects the cost

The registration fee depends on the length of your boat and the type of motor. Boats are grouped by length: under 16 feet, 16 to 26 feet, 26 to 40 feet, and over 40 feet. A boat with an outboard motor costs less to register than one with an inboard motor of the same length.

The DNR website lists the current fee schedule by boat class and motor type. Fees do not change during the three-year registration period, so you pay the same amount whether you register today or later in the year. Non-resident boat owners pay a higher fee than Illinois residents.

Some people may have access to for a reduced fee or exemption — for example, disabled veterans may pay a lower rate. Ask the DNR or the agent processing your registration whether you may have access to for any reduction.

The registration certificate and decal

Once your registration is approved, the DNR mails you a certificate and a decal. The certificate is your proof of registration and should be kept on the boat or with your boating documents. The decal is a sticker with your registration number that you must display on the hull.

Attach the decal to the starboard (right) side of the hull, near the waterline or as high as practical. Make sure it is visible and not covered by the boat's name or other markings. If you lose the decal or it becomes unreadable, contact the DNR to request a replacement.

Your registration number is also printed on the certificate. Some boaters paint this number on the hull instead of or in addition to the decal. Either way, the number must be clearly visible to law enforcement during a water safety stop.

Renewing your registration before it expires

Your registration is valid for three years from the date the DNR issues it. About 30 to 60 days before expiration, the DNR mails a renewal notice to the address on file. The notice includes a renewal form and instructions.

You can renew by mail, in person, or through an authorized agent using the same methods as initial registration. You do not need to provide proof of ownership again — just fill out the renewal form, pay the fee, and submit it. If you have made changes to the boat (such as a new motor or a change of ownership), tell the DNR on the renewal form.

If you miss the expiration date, you can still renew, but you should not operate the boat on state waters until the new registration is in hand. Operating an unregistered motorized boat can result in a fine.

What happens if your boat is sold or transferred

If you sell the boat, the new owner must register it in their name. Give the buyer the title or bill of sale and let them know the registration will need to be transferred. The new owner can use the same registration documents and process to register the boat under their ownership.

If you give the boat to a family member or transfer it as a gift, the recipient must also register it. They will need proof of the transfer (a signed title or a gift letter) and can then register it as the new owner.

You are not responsible for the boat once the title is transferred, but make sure the transfer is documented so you have proof you no longer own it. Keep a copy of the bill of sale or title transfer for your records.

Frequently Asked Questions

Do I need to register a boat I only use on private property?

No. Registration is required only for boats used on public waters — lakes, rivers, and other state waterways. If your boat never leaves private property, you do not need to register it with the DNR.

What if I cannot find the hull identification number?

Contact the DNR or visit an authorized agent with the boat. They can help you locate the HIN or, if it is missing or damaged, guide you through the process of obtaining one. Bring proof of ownership so they can verify you own the boat.

Can I register a boat online?

The Illinois DNR does not currently offer online registration. You can register by mail, in person at a DNR office, or through an authorized agent. Check the DNR website for the most current registration methods and any updates to the process.

What if I move to another state — do I need to re-register?

If you move out of Illinois and take the boat with you, you will need to register it in your new state. Contact that state's fish and wildlife or boating authority for their registration requirements. You can let your Illinois registration expire once you have registered in the new state.

How much does boat registration cost?

Fees vary by boat length and motor type and range from roughly $30 to over $100 for a three-year registration, though exact amounts change yearly. Check the Illinois DNR website or call a DNR office for the current fee schedule for your boat's size and motor.