Trailer Registration
South Dakota Trailer
Registration 2026
Everything you need to register a trailer in South Dakota - fees, weight-based schedules, inspection requirements, and the official South Dakota Department of Revenue — Motor Vehicles link. South Dakota requires annual trailer registration through county treasurers. Weight-based fees reflect the state's mix of agricultural and recreational trailer use. Missouri River reservoirs and the state's many natural lakes drive boat trailer registrations alongside farm and livestock trailer volumes.
1-Year Registration
Weight-Based Fees
2026 Trailer Registration Quick Facts
Verified 2026
Base Fee
$30.00
Trailers under 3,000 lbs: $30 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 South Dakota
All trailers towed on public roads in South Dakota must be registered with South Dakota Department of Revenue — Motor Vehicles. 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
South Dakota 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 South Dakota Department of Revenue — Motor Vehicles: Register online →. Base fee: $30.00. Trailers under 3,000 lbs: $30 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
South Dakota Trailer Requirements
All trailers must be registered through the county treasurer. License plates required on rear.
Source: South Dakota Department of Revenue — Motor Vehicles (dor.sd.gov).
Requirements verified 2026. Always confirm current fees and rules directly with the agency before registering.