Trailer Registration
Illinois Trailer
Registration 2026
Everything you need to register a trailer in Illinois - fees, weight-based schedules, inspection requirements, and the official Illinois Secretary of State — Vehicle Services link. Illinois requires annual trailer registration through the Secretary of State. Weight-based fees cover several classes from light personal trailers to heavy commercial models. Illinois's agricultural economy generates substantial trailer registration activity alongside recreational boat and utility trailers.
1-Year Registration
Weight-Based Fees
2026 Trailer Registration Quick Facts
Verified 2026
Base Fee
$18.00
Trailers 0–3,000 lbs: $18 annually
Reg. Period
1yr
Annual renewal required
Weight-Based?
Yes
Fee increases with GVWR
Inspection Required?
No
No state inspection required
Step-by-Step
How to Register a Trailer in Illinois
All trailers towed on public roads in Illinois must be registered with Illinois Secretary of State — Vehicle Services. Here is the standard registration process:
1
Gather Required Documents
You will need proof of ownership (Manufacturer's Certificate of Origin for new trailers, or the current title for used trailers), a valid photo ID, and payment. If the trailer was previously registered in another state, bring those documents as well.
2
Determine Your Trailer's GVWR
Illinois uses a weight-based fee schedule - you'll need to know your trailer's Gross Vehicle Weight Rating (GVWR). This is usually listed on a tag on the trailer frame or tongue.
3
Apply and Pay Registration Fees
Submit your application online at Illinois Secretary of State — Vehicle Services: Register online →. Base fee: $18.00. Trailers 0–3,000 lbs: $18 annually
4
Attach License Plate & Keep Registration
Install your trailer's license plate in the designated bracket and ensure the plate light functions properly. Keep your registration certificate accessible when towing. Your trailer must also have proper functioning brake lights, turn signals, running lights, and safety chains.
Requirements
Illinois Trailer Requirements
All trailers towed on Illinois roads must be registered with the Secretary of State. License plates must be displayed on the rear of the trailer.
Source: Illinois Secretary of State — Vehicle Services (www.ilsos.gov).
Requirements verified 2026. Always confirm current fees and rules directly with the agency before registering.