Registering a car in Idaho involves a straightforward process handled by your local County Assessor’s Motor Vehicle office. You'll need to provide proof of ownership, identity, and insurance, pay the required fees, and potentially pass a safety and emissions inspection. The most critical step is ensuring you have the correct paperwork to avoid delays.
The essential documents you must bring are:
- Proof of Ownership: The vehicle’s out-of-state title, properly assigned to you, or the Manufacturer’s Certificate of Origin (MCO) for a new car.
- Proof of Identity: A valid driver’s license or state-issued ID card.
- Proof of Idaho Auto Insurance: Your insurance card or policy document showing Idaho-compliant coverage.
- Vehicle Identification Number (VIN) Inspection: This is often done at the office, but if your vehicle is from out of state, you may need a form completed by law enforcement or a licensed dealer.
- Odometer Disclosure: Required for vehicles under ten years old.
If your vehicle is from another state or is more than a few model years old, you will likely need a safety inspection. Certain counties, like Ada County (which includes Boise), also require an emissions test. Check with your local county motor vehicle office for specific requirements.
The fees you'll pay include an initial registration fee, title fee, and sales tax. The most significant cost is the Idaho vehicle registration tax, which is based on the vehicle's age and taxable value. Newer and more expensive vehicles cost more to register.
| Vehicle Age | Sample Taxable Value | Estimated Registration Tax (Example) |
|---|
| Brand New | $35,000 | ~$490 |
| 3 Years Old | $22,000 | ~$308 |
| 5 Years Old | $16,000 | ~$224 |
| 7 Years Old | $11,000 | ~$154 |
| 10+ Years Old | Fixed Minimum Fee | ~$24 |
After completing the process, you will receive your Idaho license plates and registration sticker immediately. Your new title will be mailed to you separately within a few weeks.
