Where to renew your Arizona vehicle registration
The Arizona Department of Transportation (ADOT) does not handle vehicle registration directly. Instead, you renew through your county assessor's office, which is the body that issues and renews Arizona registration. Each of Arizona's 15 counties has its own assessor's office, and you work with the one in the county where your vehicle is registered.
You can renew in person at your county assessor's office, by mail, or online through the county's system. The online option is fastest if your county offers it — most do — and you can complete it from home without visiting an office or waiting in line. Mail renewal takes longer but works if you prefer not to go online.
ADOT's role is limited to issuing the actual registration documents and license plates after the county processes your renewal. You do not contact ADOT directly to renew; you contact your county assessor.
Key Takeaways
- Your county assessor's office, not ADOT, handles registration renewal in Arizona, and each county has its own office and renewal system.
- Online renewal through your county is the fastest method and is available in most Arizona counties if your vehicle meets basic requirements.
- You will need your current registration card, vehicle identification number (VIN), and proof that your vehicle passed emissions testing if your county requires it.
- Renewal fees vary by county and vehicle type, so contact your assessor's office or check their website to learn the exact cost before you renew.
- If you renew online or by mail, ADOT mails your new registration documents and plates to your address within two to four weeks.
What documents and information you need before starting
Gather your current registration card before you begin the renewal process. This card shows your vehicle's registration number and expiration date. You will also need your vehicle identification number (VIN), which appears on your registration card, your vehicle's title, and your driver's license or state ID.
If your county requires emissions testing — Maricopa, Pima, and Pinal counties do — you must have a passing emissions test certificate dated within the last 60 days. Counties that do not require emissions testing will not ask for this. Check your county assessor's website or call their office to confirm whether your county requires it before you renew.
Have your payment method ready. Most counties accept credit cards, debit cards, and checks for online or mail renewal. In-person renewal may accept cash as well. Renewal fees are set by each county and typically range based on your vehicle's weight and age, so the exact amount varies.
Renewing online through your county assessor
Online renewal is the fastest route if your vehicle meets the requirements. Your vehicle must not have any liens, your registration must not be suspended, and you must have a current address on file with your county. If any of these do not explore to you, you will need to renew in person or by mail instead.
Go to your county assessor's website and look for a link labeled "Vehicle Registration Renewal" or "Online Renewal." The exact name and location of this link varies by county. Enter your vehicle's registration number and VIN when prompted. The system will pull up your current registration and show you the renewal fee.
Review the information on screen to confirm it is correct. If your address has changed, update it before you pay. Then select your payment method and complete the transaction. You will receive a confirmation number on screen and by email. ADOT will mail your new registration card and plates to your address within two to four weeks.
Renewing by mail or in person at your county assessor's office
Mail renewal works if you prefer not to go online or if your vehicle does not meet the requirements for online renewal. Request a renewal form from your county assessor's office by phone or through their website. Fill out the form completely, including your current registration number, VIN, and current address. Attach a check or money order for the renewal fee — do not send cash through the mail.
Mail the completed form and payment to the address listed on the form or the county assessor's website. Include a copy of your current registration card. If your county requires emissions testing, include a copy of your passing certificate as well. Mail renewal typically takes four to six weeks from the time the office receives your form.
In-person renewal at your county assessor's office is the fastest method if you need your new registration quickly. Bring your current registration card, VIN, driver's license or state ID, and payment. If emissions testing is required, bring your passing certificate. The office will process your renewal on the spot and give you a temporary registration document. Your permanent registration card and plates will arrive by mail within two to four weeks.
Finding your county assessor's office contact information
Each Arizona county has a different assessor's office website and phone number. The easiest way to find yours is to search "[Your County Name] Arizona Assessor" in a search engine. For example, if you live in Maricopa County, search "Maricopa County Arizona Assessor."
The assessor's office website will list their phone number, office address, hours, and usually a link to online renewal. Many counties also post their renewal fees and required documents on their website so you can confirm what you need before you contact them.
If you do not know which county your vehicle is registered in, check your current registration card. The county name appears near the top of the card.
What happens after you submit your renewal
Once your county assessor processes your renewal, ADOT takes over and produces your new registration documents and license plates. This step takes one to two weeks. ADOT then mails everything to the address on file with your county. Total time from submission to delivery is usually two to four weeks for online or in-person renewal, and four to six weeks for mail renewal.
You can use your temporary registration document or your old registration card to drive legally while you wait for your new materials to arrive. Do not drive without any registration document, even if you have submitted your renewal.
If your new registration does not arrive within six weeks, contact your county assessor's office. They can check the status of your renewal and confirm that ADOT received it. Keep your confirmation number from your renewal submission so you can reference it when you call.
Emissions testing requirements by county
Arizona requires emissions testing in three counties: Maricopa, Pima, and Pinal. If your vehicle is registered in one of these counties, you must have a passing emissions test certificate dated within the last 60 days before you renew your registration. Vehicles registered in all other Arizona counties do not need emissions testing.
Emissions testing facilities are located throughout each county and are run by private companies, not by the county or ADOT. You can find a testing location by searching "[Your County Name] emissions testing" or by calling your county assessor's office for a list of approved facilities. Testing typically costs between $20 and $30 and takes 15 to 30 minutes.
If your vehicle fails emissions testing, you will receive a report explaining what failed. You can have the vehicle repaired and retested at the same facility. Some facilities offer a retest at a reduced cost if you return within a certain time frame.
Frequently Asked Questions
Can I renew my registration if my vehicle has a lien on it?
Online renewal is not available if your vehicle has a lien. You must renew in person at your county assessor's office or by mail. Bring proof that you are making payments on the lien, such as a recent payment receipt or loan statement. The assessor's office can tell you what documents they need before you visit.
What if my registration is suspended?
You cannot renew a suspended registration. Contact your county assessor's office to find out why your registration is suspended and what steps you need to take to clear it. Common reasons include unpaid traffic fines, unpaid property taxes, or an unpaid emissions violation. Once the suspension is lifted, you can renew normally.
Do I need to renew my license plates at the same time as my registration?
License plates are renewed automatically with your registration in Arizona. You do not need to request them separately. ADOT will mail your new plates along with your new registration card. If your plates are damaged or missing, call your county assessor's office to request a replacement.
How much does registration renewal cost in Arizona?
Renewal fees vary by county and depend on your vehicle's weight and age. Fees typically range from $50 to $200 or more for older or heavier vehicles. Check your county assessor's website or call their office to learn the exact fee for your vehicle before you renew.
What if I miss my registration expiration date?
Renew as soon as you realize your registration has expired. Driving with an expired registration can result in a traffic citation. Contact your county assessor's office to renew when ready. You may owe a late fee in addition to the standard renewal fee, depending on your county's policy.