Idaho Boat Registration Fee Calculator
In Idaho, boat registration is handled by the Idaho Department of Parks & Recreation and renews annually. The fee is based on boat length — from $30 for the smallest class up to $70 for the largest per year. Non-motorized craft like kayaks and canoes are generally exempt (check local rules for sailboats). Boats with motors — including trolling motors on otherwise unpowered craft — almost always require registration.
Your boat
- Registration fee (by length)$46.00
- Title fee$14.00
Estimate only — actual fees are set by your state and county at the time of registration. Data last reviewed 2026-07-16. This state's full local formula is not yet implemented; see the notes below the calculator.
Good to know
- Formula: $30 for powered boats up to 12 ft plus $2 per additional foot (invasive-species fee included), plus a $1.50 vendor fee.
- Non-motorized craft skip registration but need a $7/yr invasive species sticker (inflatables under 10 ft exempt).
What determines boat registration cost in Idaho?
- Boat length (fee tiers)
- Motorized vs. non-motorized
- New registration vs. renewal (title/transfer fees apply once)
Frequently asked questions
Do I have to register a kayak or canoe in Idaho?
Generally no — unpowered craft are exempt in Idaho. But the moment you mount any motor, including an electric trolling motor, registration is required.
How often do I renew a boat registration in Idaho?
Annually.
More Idaho calculators
Boat Registration calculators for other states
Sources: https://itd.idaho.gov/wp-content/uploads/2025/07/Registration-Fact-Sheet_DMV.pdf — data last reviewed 2026-07-16.