If you bought a utility, cargo, boat, or recreational trailer in Illinois, you generally have to title and register it with the Illinois Secretary of State before you tow it on a public road. Registering a trailer in Illinois means completing a short application, showing proof of ownership, and paying a weight-based fee. Below is what the process looks like, what it costs, and the equipment and towing laws that keep your setup legal once you are on the road.
Do You Have to Register a Trailer in Illinois?
In most cases, yes. Illinois law requires every motor vehicle, trailer, semitrailer, and pole trailer to be registered and titled when it is driven or moved on a highway (625 ILCS 5/3-402). That covers the everyday trailers most people own, including cargo and enclosed trailers, flatbeds and utility trailers, boat trailers, and travel or recreational trailers.
If you buy a trailer from a private seller or bring one in from another state, you have 45 days to register it in Illinois. You can also request a temporary registration permit, valid for 90 days, to stay legal while your paperwork is processed.
How to Register a Trailer in Illinois, Step by Step
You can register a trailer in person at a Secretary of State facility or by mail. An in-person visit is usually completed the same day, while a mailed application can take several weeks. Here is what the process involves:
- Complete an Application for Vehicle Transaction(s), Form VSD 190, which you can prepare through the Secretary of State’s Electronic Registration and Title (ERT) system
- Provide proof of ownership, such as the signed title, a Manufacturer’s Certificate of Origin (MCO) for a new trailer, or a bill of sale
- Bring a valid photo ID and, for a new or dealer purchase, proof that any tax, title, and license fees were handled
- Pay the title fee plus the weight-based registration fee for your trailer’s plate class
Homemade and custom-built trailers have an extra step. Because they have no factory title or VIN, the Secretary of State typically requires a VIN inspection and supporting documents, such as receipts for the materials, before a title and plate are issued.
Illinois Trailer Registration Fees
What you pay depends on the trailer’s weight and plate class. Recreational Trailer (RT) plates, used for many personal camping and travel trailers, are billed on an annual schedule tied to gross weight:
| Trailer gross weight | Annual RT registration fee |
|---|---|
| 3,000 lbs or less | $18 |
| 3,001 to 8,000 lbs | $30 |
| 8,001 to 10,000 lbs | $38 |
| Over 10,000 lbs | $50 |
Smaller utility and cargo trailers usually fall under TA trailer plates, and larger or commercial trailers use flat-weight trailer plates with higher fees. Fee schedules change from time to time, so confirm the current amount for your plate class with the Illinois Secretary of State before you file.
Titling a Trailer and Registering One Without a Title
Illinois issues a title for most trailers, and you generally need proof of ownership to get one. When you have the trailer’s title or MCO, titling is straightforward. Registering a trailer without a title is still possible, but it takes more work.
If a private seller cannot provide a title, a properly completed bill of sale can help establish ownership, and the Secretary of State may require a VIN or ownership inspection and additional forms before issuing a new title. For a homemade trailer, expect the same inspection process along with documentation showing how the trailer was built. Because these situations vary, it is worth calling the Secretary of State ahead of time so you arrive with the right paperwork.
Illinois Trailer Equipment and Safety Laws
Registration is only part of staying legal. Once your trailer is on the road, it has to meet the equipment standards in the Illinois Vehicle Code, which are written to keep a loaded trailer visible and under control.
Brakes
Every trailer or semitrailer over 3,000 pounds gross weight must have brakes that can control, stop, and hold the trailer, and they must be operable by the driver from the towing vehicle (625 ILCS 5/12-301). Heavier trailers must also have a breakaway system that automatically applies the brakes if the trailer separates from the tow vehicle, which reduces the chance of a runaway trailer in traffic.
Lights and safety equipment
Trailers need working tail lamps, brake lights, turn signals, rear reflectors, and a license plate light so they are visible and their signals match the towing vehicle. Larger trailers may also need side marker lamps and clearance lamps. A secure hitch and safety chains are required to keep the trailer connected if the primary coupling fails.
Size limits
Illinois caps how big a trailer and load can be. On most highways the total width may not exceed 8 feet 6 inches (102 inches), and height may not exceed 13 feet 6 inches, including the load (625 ILCS 5/15-102, 5/15-103). Overall length limits also apply and depend on your specific vehicle-and-trailer configuration and the highway you are on, so oversized loads may need a permit.
What License Do You Need to Tow a Trailer in Illinois?
For most personal towing, a standard Illinois Class D driver’s license is enough to pull a trailer behind a car, SUV, or pickup. A commercial driver’s license (CDL) may be required once the combined weight of the vehicle and trailer crosses certain thresholds or when the trailer is used for commercial purposes. Because CDL classifications turn on both weight and use, drivers hauling heavy or business loads should confirm which class applies to their setup.
Injured in a Crash Involving a Trailer?
A poorly maintained, overloaded, or improperly hitched trailer can cause serious harm when it sways, disconnects, or jackknifes. Crashes involving tractor-trailers and other large towed loads tend to be severe because of the weight and size involved, and sorting out who is responsible is rarely simple. The driver, the trucking or towing company, a cargo loader, or a parts manufacturer may share the blame.
The attorneys at 844-SEE-MIKE handle Illinois truck accident and car accident claims, including crashes with commercial trailers. An experienced injury lawyer can move quickly to preserve evidence like driver logs, maintenance records, and onboard data, then deal with the insurance companies so you can focus on recovering. Our Chicago truck accident lawyers work on a contingency fee, which means you pay nothing unless we recover money for you. If a towing company damaged your vehicle, you may also have questions about suing a towing company for damage.
This article is general information about Illinois trailer rules, not legal advice.
Frequently Asked Questions
Do you have to register a trailer in Illinois?
Yes. Almost any trailer used on a public road must be titled and registered with the Illinois Secretary of State and display a valid plate (625 ILCS 5/3-402). Trailers used only off-road or certain exempt equipment are treated differently.
How much does it cost to register a trailer in Illinois?
It depends on the trailer’s weight and plate class. Recreational Trailer plates run $18 for 3,000 pounds or less, $30 for 3,001 to 8,000 pounds, $38 for 8,001 to 10,000 pounds, and $50 for over 10,000 pounds, plus a title fee. Utility, cargo, and commercial trailers use different plate classes, so verify the current fee with the Secretary of State.
Can you title a trailer with a bill of sale in Illinois?
Often yes. When there is no title, a complete bill of sale can help prove ownership, but the Secretary of State may require a VIN or ownership inspection and extra forms before issuing a new Illinois title.
How do I register a trailer without a title in Illinois?
Bring the best proof of ownership you have, such as a bill of sale, and be ready for a VIN inspection and additional paperwork. Homemade trailers follow the same path, usually with build receipts and an inspection before a title and plate are issued. Call the Secretary of State first to confirm exactly what your situation requires.
Do you need insurance for a trailer in Illinois?
Illinois generally does not mandate a separate liability policy on most trailers the way it does for the vehicle towing them, though your auto insurer or lender may require coverage. Insurance rules can be specific to your policy and situation, so confirm requirements with the Secretary of State and your insurer.
Do trailers need brakes in Illinois?
Trailers and semitrailers over 3,000 pounds gross weight must have brakes operable from the towing vehicle, and heavier trailers must also have a breakaway system that applies the brakes if the trailer detaches (625 ILCS 5/12-301).
Have questions after a trailer or truck crash in Illinois? Contact 844-SEE-MIKE anytime for a free, no-pressure consultation.
