Free Idaho Vehicle (DMV) Bill of Sale Form (ITD 3738) | PDF

Idaho Vehicle (DMV) Bill of Sale Form (ITD 3738)

An Idaho DMV bill of sale (ITD 3738) is a written record that captures the key details of a vehicle being sold from one individual to another. Information such as the vehicle description, sale price, and buyer/seller details is included, along with signatures from both parties to validate the agreement. Idaho allows about 30 days to complete registration after the sale.

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Last updated April 9th, 2026

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An Idaho DMV bill of sale (ITD 3738) is a written record that captures the key details of a vehicle being sold from one individual to another. Information such as the vehicle description, sale price, and buyer/seller details is included, along with signatures from both parties to validate the agreement. Idaho allows about 30 days to complete registration after the sale.

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Bill of Sale (Requirements)

  • Buyer’s information
    • Full legal name
    • Driver’s license number
    • Address
    • Daytime phone number
    • Signature
  • Seller’s information
    • Full legal name
    • Driver’s license number
    • Address
    • Daytime phone number
    • Signature
  • Vehicle information
    • Year/Make/Model
    • Vehicle identification number (VIN)
    • Title number
    • Odometer reading
    • Vehicle description
    • Brands, if applicable
  • Sale information
    • True selling price ($)
    • Sale date
  • Lien information
    • New lienholder name, or “None”
    • Address

Source: Idaho Transportation Department (Bill of Sale ITD 3738)

How to Register a Vehicle

To begin the registration process, you must appear in person before your local county assessor at an Idaho Transportation Department office with: You have up to 30 days to title and register your vehicle after the time of purchase in the state of Idaho. Once the 30 days expire, you can no longer legally operate your vehicle on public roadways.

  • Bill of Sale: Helpful if needed as part of the title paperwork.
  • Full Legal Name and Identification Number
  • Idaho Title Documents: The vehicle must be titled in Idaho before registration can be completed.
  • Odometer Disclosure: Required for vehicles newer than 2010 and weighing under 16,000 pounds.
  • Proof of Insurance: The vehicle must be insured with a company licensed to do business in Idaho with at least the minimum coverage.
  • Verifiable Physical Address and Mailing Address

Out-of-State Purchase

  • Idaho Title Required: A vehicle purchased out of state must still be titled in Idaho before it can be registered.

Source: Idaho Transportation Department (Vehicle Registrations)

How to Register a Vessel

To lawfully employ the use of a watercraft upon waters located in the State of Idaho, you must officially register the boat within the jurisdiction. Also, when purchasing a new boat, you must register within the first 15 days to avoid penalty fees. Any vessel that uses a sail or is mechanically propelled by a motor is held by this standard with the following exemptions:

  • Non-motorized vessels.
  • Emergency lifeboats.
  • Sailboards.
  • Vessels registered in an alternate state or country are to be utilized for a period of time of less than 60 continuous days in any one-year time period.
  • Vessels owned by the federal or state authorities.

The registration application process can be completed at your nearest Idaho DMV facility or a participating boat registration vendor with the following materials:

  • A fillable Idaho Boat Registration Application (made available on-site at the time of registration).
  • A regulated Idaho Certificate of Title (If the vessel is purchased new or from out-of-state, you must apply for one. If you are purchasing the boat from a private seller, have the previous owner sign over the title to you at the time of purchase).
  • A unique identifier is associated with the boat owner, such as a social security number, photo ID, or company employer identification number.
  • A photograph of your vessel’s hull identification number may need to be verified to grant registration.
  • Certificate of completion of the Official Idaho Boating Safety Course exam available online.
  • Funds to compensate the registration fees and applicable taxes.

Sample

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