Free Idaho Car Bill of Sale
The office that appraises Idaho farmland also titles Idaho cars: transfers happen at the COUNTY ASSESSOR'S motor vehicle counter — not at an ITD building or any central DMV — which is the single most misdirecting fact in an Idaho car sale. Everything else is flat and predictable: 6% sales tax with zero local additions anywhere in the state, form ITD 3738 as the bill of sale, a 30-day window, and no inspection of any kind for in-state vehicles (out-of-state cars take a VIN verification first). The assessor's office appraises for a living, so declared prices far from market draw questions.
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Idaho Car Bill of Sale — What You Need to Know
Sales Tax Details
Idaho state sales tax is 6%. No local sales tax on vehicles in Idaho. Paid at county assessor at title transfer.
Inspection Requirements
Idaho does not require a state safety or emissions inspection at time of sale.
Idaho Car Sale — Step-by-Step Checklist
- Complete ITD 3738 with VIN, year, make, model, odometer, sale price.
- Seller signs the title over to buyer.
- Buyer takes ITD 3738 + signed title to county assessor within 30 days.
- Buyer pays 6% sales tax + title fee ($14) + registration fees.
Common Pitfalls
- Going to ITD central office — county assessors handle title transfers in Idaho.
- Missing the 30-day deadline.
- Idaho's 6% is flat statewide — no local rate confusion.
- Odometer disclosure required on all vehicles under 10 model years old.
Pro Tip
ID car: ITD 3738 + county assessor + 30-day transfer + 6% flat sales tax.