How to Sell a Boat Privately in Idaho (2026)
| Titling agency | Idaho DMV |
| Transfer deadline | 30 days from sale |
| Sales / use tax | 6% (Sales tax applies to private party vehicle purchases) |
| Bill of sale notary | Not required |
| Lien release form | ITD 3367 |
How to Sell a Boat Privately in Idaho — 8 Steps
- 1Locate the HIN — the 12-character hull identification number is stamped on the starboard (right) transom on all boats manufactured after 1972. Idaho requires this on every bill of sale.
- 2Determine registration class — boats under 26 ft register with Idaho DMV only. Boats 26 ft+ may need USCG documentation (federal title) in addition to state registration. Check vessel length and use.
- 3Clear any liens — if the boat was financed, request a payoff and lien release letter. Idaho uses ITD 3367.
- 4Gather documentation — current Idaho registration card, state title (if titled), USCG documentation (if applicable), trailer title, engine serial number records.
- 5Price the vessel — check NADA Guides (boats), BUCValu, or recent Idaho dealer comps. Factor in trailer condition, engine hours, and recent service.
- 6Complete the bill of sale — HIN, vessel make/year/length, engine make/model/serial, trailer VIN (if included), sale price, sale date, both parties' full legal names and addresses.
- 7Sign the title or registration — endorse the back of the Idaho registration or title. For USCG-documented vessels, complete Form CG-1340 (notarized).
- 8Notify Idaho DMV — buyer must register within 30 days of the sale. Seller files release of ownership with Idaho DMV to remove liability for future fines.
Idaho lien release procedure
- Obtain Form ITD 3367 from the Idaho Transportation Department or the lienholder.
- Lienholder completes and signs ITD 3367 releasing the lien.
- Submit ITD 3367 with the existing title and title application at a county DMV office.
- Pay the title fee and receive a clean Idaho title.
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Start My Idaho Boat Bill of Sale →Frequently Asked Questions — Idaho
Do I need a bill of sale to sell a boat in Idaho?▾
Yes. Idaho requires a written bill of sale for private boat transfers to document the hull identification number (HIN), engine details, sale price, and both parties' signatures. The buyer needs the bill of sale to register the vessel with Idaho DMV.
What is the Idaho boat title transfer deadline?▾
Idaho requires the buyer to transfer registration within 30 days of the sale date. Missing the deadline can trigger late fees and back-dated registration penalties.
Is sales tax owed on a private boat sale in Idaho?▾
Idaho charges 6% sales/use tax on private boat sales. Sales tax applies to private party vehicle purchases The buyer typically pays tax at the registration office when registering with Idaho DMV.
Do I need a notary for a Idaho boat bill of sale?▾
Idaho does not require notarization for a private boat bill of sale. However, USCG-documented vessels (26+ feet) require notarization on Form CG-1340 regardless of state.
How does a buyer register a boat purchased privately in Idaho?▾
The buyer takes the signed bill of sale and endorsed title (or prior registration) to Idaho DMV and pays the registration fee plus 6% sales/use tax. Transfer must be completed within 30 days of the sale date.
Source: Idaho DMV ↗ · Last verified 2026-05-07