Iowa Boating Information
Registration Questions:(515) 281-5918
Boating Registration Website:
State Tax Department Website:
Registration Grace Period (Days):60 days
Boat Sales & Use Tax Rate:6%
Credit For Tax Paid In Another State:Yes
State Decal Required For Documented Vessel:Yes
Boat Titles Issued:Yes
Notes:Local sales and use tax also apply.
Boating Law Administrator(515) 281-0122
Maximum Speed Limit:70mph on Interstate or Posted Speed Limit
Maximum Dimensions For Trailer:53'L x 8'6"W x 14'H
Maximum Overall Length with Vehicle & Trailer:70'
Minimum Weight Requiring Separate Trailer Brakes:3,000 lbs
Trailer Equipment Requirements:
Safety Chains:Yes
Brake Lights:Yes
Clearance Lights:Yes
License Light:No
Turn Signals:Yes
Flares:No, but lights required or triangles
Breakaway Brakes:Yes (Over 10,000 lbs.)
Two Trailers:Yes
Insurance:Not required specifically for the trailer, may fall under the vehicle insurance.
Oversize Permit Office (IAPS):(515) 237-3264
For specific questions about boating issues or BoatUS Government Affairs, please e-mail the department at

Iowa Boating Alerts: 

We do not have any current state alerts at this time. If you have a boating related issue please email us at