How long do I have to register my car after moving to Idaho?

Thirty days, according to the Idaho Transportation Department, even if your out-of-state registration hasn't expired.

Do I need a VIN inspection in Idaho?

Yes, for any vehicle that hasn't been titled in Idaho before. A DMV employee does it when you bring the vehicle to the county motor vehicle office; law enforcement officers and Idaho dealers can also do it.

Does Idaho require a smog check or emissions test?

No. Idaho repealed vehicle emissions testing effective July 1, 2023.

Idaho vehicle title and registration: a new-resident checklist

By the Bluebird Marketplace team · Last checked against official sources October 13, 2026

If you've moved to Idaho, you have 30 days to title and register your vehicle here, even if your old state's registration hasn't expired, and 30 days to get an Idaho driver's license or ID card. Take the vehicle, its current title and registration, and your ID to a county assessor's motor vehicle office, where an employee will inspect the VIN. Fees depend on the vehicle and your county. Idaho doesn't require emissions testing.

The deadline

The Idaho Transportation Department's guide for new residents says you must title and register your vehicle within 30 days of moving to Idaho, whether or not your out-of-state registration has expired. Some older ITD documents mention 90 days; go by the current 30-day rule.

What to bring to the county motor vehicle office

The vehicle itself, for the VIN inspection (required for any vehicle not already titled in Idaho).
Its current title and registration. If a lender holds the title, bring the lender's name and address.
Lost your title? Apply for a duplicate from the state that issued it before your Idaho visit; ITD's new-resident guidance specifically calls this out.
Your ID.
If the title isn't in your name, it must be signed over to you, and you'll need a bill of sale if the price isn't on the title.
A way to pay: confirm accepted payment methods with your county office. Fees and taxes depend on the vehicle type, its age, the purchase price and your county.

Insurance and the right DMV office

Tell your insurance company that you have moved to Idaho and confirm your liability coverage is with a carrier admitted in Idaho. ITD verifies coverage electronically, so changing your registration does not replace updating your insurance.

Use the Idaho DMV office finder linked from ITD's new-resident page to check services and appointments before you go. Some county offices handle only driver's licenses, some only motor vehicles, and some both. Ask the office which fees and payment methods apply to your vehicle.

The document checklist, insurance guidance and office-selection advice above were checked against ITD's New to Idaho page on November 1, 2026. If you are buying a vehicle rather than bringing one you already own, use the used-car buying checklist for the sale and title handoff.

Your Idaho driver's license

You also have 30 days to get an Idaho driver's license or ID card. Bring proof of U.S. citizenship or lawful presence, identity, Idaho residency and your name; ITD recommends a second, different proof of residency too. College students attending Idaho schools and active-duty military members and their dependents can keep a valid out-of-state license.

Things you don't need to worry about

Emissions testing: Idaho repealed it effective July 1, 2023, and the EPA approved removing the Ada County program.
Your old state's brands carry over: if your vehicle has a salvage or rebuilt brand from another state, Idaho carries it forward on the new title.

Boats, ATVs and snowmobiles

These are registered through Idaho Parks and Recreation, not the DMV: online, by phone at 1-888-922-6743, or through registration vendors around the state. Titles for boats and off-road vehicles that need one go through the county DMV. See selling an RV, trailer or boat in Idaho for which ones need a title.

Common questions

How long do I have to register my car after moving to Idaho?: Thirty days, according to the Idaho Transportation Department, even if your out-of-state registration hasn't expired.
Do I need a VIN inspection in Idaho?: Yes, for any vehicle that hasn't been titled in Idaho before. A DMV employee does it when you bring the vehicle to the county motor vehicle office; law enforcement officers and Idaho dealers can also do it.
Does Idaho require a smog check or emissions test?: No. Idaho repealed vehicle emissions testing effective July 1, 2023.

Sources

Fees and forms change. Check with the Idaho Transportation Department or your county assessor's motor vehicle office before you file. This guide is general information, not legal advice.