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When buying a car from a private seller in Idaho, you must obtain the original Certificate of Title. The seller must sign their name in the "Seller's Signature" section on the back of the title, enter the date of sale, the odometer reading, and the selling price. As the buyer, you must also sign the title in the "Buyer's Signature" section. If the title has space for a notary, check if it's required (usually not for Idaho titles, but always verify).
Yes, a Bill of Sale (Form ITD 3738) is required by the Idaho Transportation Department (ITD). This document serves as the official price declaration for tax purposes and your proof of purchase. It must include the vehicle description (VIN, make, model, year), the purchase price, the date of sale, and the full names and signatures of both the buyer and seller.
You will be required to pay the state sales tax (currently 6%) on the purchase price listed on the Bill of Sale. This tax is paid directly to the county assessor's office when you title and register the vehicle, not to the seller. You will also pay a title fee (typically $14) and registration fees, which vary based on the age of the vehicle and your county of residence.
The license plates on the car belong to the seller and must be removed at the time of sale. You generally cannot drive the vehicle legally without plates. However, you can obtain a "72-Hour Trip Permit" from the ITD for a small fee, which allows you to legally drive the unregistered vehicle for three days to get it home or to the DMV.
You have 30 days from the date of purchase to file for a title and register the vehicle at your local county assessor's motor vehicle office. If you fail to title the vehicle within this 30-day window, a penalty fee (usually $20) will be added to your transaction costs.
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