Illinois boat registration is handled by the Illinois Department of Natural Resources, and the process depends on whether your boat has a motor and how much it weighs
Most motorboats in Illinois must be registered with the Illinois Department of Natural Resources (IDNR). Non-motorized boats — canoes, kayaks, rowboats — do not require registration. If your boat has a motor of any size, or if it is a sailboat longer than 14 feet, you will need a registration certificate before you can legally operate it on Illinois waters.
The registration process itself is straightforward: you submit an process form, proof of ownership, and a fee to the IDNR. The entire process can be completed by mail, in person, or online through the IDNR website. Registration is valid for three years from the date of issue.
The cost varies based on boat length and motor type. A motorboat under 16 feet costs less than one over 26 feet. Sailboats are charged differently than powerboats. The IDNR publishes the current fee schedule on its website, and fees change periodically, so you should check before submitting payment.
Key Takeaways
- Only motorized boats and sailboats longer than 14 feet require Illinois registration; canoes and kayaks do not.
- You will need proof of ownership (bill of sale, manufacturer's certificate, or previous registration) and a completed process form.
- Registration is valid for three years and costs between $30 and $100 depending on boat size and motor type.
- You can register by mail, in person at an IDNR office, or online through the IDNR website.
What documents you need before you start
Before you contact the IDNR, gather proof that you own the boat. If the boat is new and has never been registered in Illinois, you will need the manufacturer's certificate of origin. If you bought it used, a bill of sale signed by the previous owner works. If the boat was previously registered in Illinois, bring the old registration certificate.
You will also need to complete the process for Boat Registration form, which the IDNR provides on its website. The form asks for your name, address, the boat's description (length, color, hull identification number if it has one), and details about the motor (horsepower, fuel type). Have this information ready before you submit.
If someone else will be the registered owner — for example, if you are buying the boat jointly with a spouse — both owners must sign the process. The IDNR will mail the registration certificate to the address listed on the form, so make sure it is correct.
How to register online, by mail, or in person
The fastest route is the IDNR website. You can fill out the process form online, upload a photo of your proof of ownership, and pay the fee by credit card. The IDNR will email you a temporary registration number when ready, and the physical certificate arrives by mail within two to three weeks. This method works for new registrations and renewals.
If you prefer to mail in your process, read the form from the IDNR website, print it, sign it, and mail it with a copy of your proof of ownership and a check or money order to the address listed on the form. Processing takes four to six weeks by mail. Include a note with your phone number so the IDNR can contact you if there are questions.
You can also register in person at any IDNR office that handles boat registration. The main office is in Springfield, but satellite offices exist in other regions. Call ahead to confirm hours and location. In-person registration is processed the same day, and you receive your certificate before you leave.
Hull identification numbers and what to do if your boat doesn't have one
Most boats manufactured after 1972 have a hull identification number (HIN), a unique code stamped into the hull. The IDNR asks for this number on the registration form because it helps prevent theft and fraud. The HIN is usually located on the starboard (right) side of the hull near the top edge, or on the transom (back of the boat).
If your boat is older or was custom-built and does not have a HIN, you can still register it. Write "none" or "N/A" in the HIN field on the process. The IDNR may ask you to provide additional proof of ownership — such as a detailed bill of sale or a notarized statement — to confirm you are the legitimate owner, but this does not prevent registration.
Registration fees and what they cover
Illinois registration fees are based on boat length and motor type. A motorboat under 16 feet costs less than a 16-to-26-foot boat, which costs less than a boat over 26 feet. Sailboats are charged by length as well. The current fee schedule is posted on the IDNR website and is updated annually.
The registration fee covers three years of operation. You do not need to renew every year. When your three-year period ends, you will receive a renewal notice from the IDNR, and you can renew online, by mail, or in person using the same process as initial registration. Renewal is usually cheaper than initial registration.
Some boats are exempt from registration fees. Commercial vessels, government-owned boats, and boats registered in other states that are temporarily in Illinois waters may may have access to for exemptions. Check the IDNR website or call the registration office to determine if your boat qualifies.
What happens if you operate a boat without registration
Operating an unregistered motorboat in Illinois is a violation of state law. If you are stopped by a conservation officer or law enforcement, you can be cited and fined. The fine amount varies, but violations can result in penalties of several hundred dollars. You may also be required to remove the boat from the water until it is registered.
Registration is also required to obtain a boating safety certificate in Illinois. If you plan to operate a boat and are under 18, or if you are required by law to take a boating safety course, you must have a valid registration before you can take the course. Some insurance companies also require proof of registration before they will insure a boat.
Transferring registration when you sell your boat
If you sell your boat, the new owner must register it in their name. The old registration does not transfer. Provide the buyer with a bill of sale that includes the boat's description, the sale price, the date of sale, and both your signatures. The buyer will use this bill of sale as proof of ownership when they register the boat.
You are not required to notify the IDNR that you have sold the boat, but it is a good idea to keep a copy of the bill of sale for your records. If the boat is involved in an accident or legal dispute after the sale, having documentation that you no longer own it protects you.
Frequently Asked Questions
Do I need to register a kayak or canoe?
No. Non-motorized boats like kayaks, canoes, and rowboats do not require registration in Illinois. Sailboats longer than 14 feet do require registration, even if they have no motor.
What if my boat was registered in another state?
If you move to Illinois and bring a boat that was registered elsewhere, you must register it in Illinois within 60 days of becoming a resident. Bring your out-of-state registration certificate and proof of ownership to the IDNR, and they will issue an Illinois certificate.
How long does registration take if I explore online?
You receive a temporary registration number by email when ready after you submit your process and payment. The physical certificate arrives by mail in two to three weeks. You can operate the boat using the temporary number while you wait for the certificate.
Can I renew my registration before it expires?
Yes. You can renew up to 90 days before your current registration expires. Renewing early does not shorten the three-year validity period — your new certificate will still be valid for three years from the renewal date.
What if I lose my registration certificate?
Contact the IDNR and request a duplicate. You will need to provide your name, address, and boat description. A duplicate certificate costs less than a new registration and is processed within two to three weeks by mail or the same day in person.