Renew your Colorado registration online, by mail, or in person at your county clerk's office

Colorado sends renewal notices 30 to 60 days before your registration expires. You can renew online through the Colorado Department of Revenue website, by mail using the renewal notice, or by visiting your county clerk's office in person. Online renewal is the fastest option and takes about 10 minutes. You'll need your vehicle identification number (VIN), current registration number, and a payment method. Mail renewal takes two to three weeks from the time the county receives it. In-person renewal is when ready if you bring all required documents.

The renewal fee depends on your vehicle's age, weight, and type. Colorado charges a base registration fee plus an emission test fee (if your vehicle is subject to testing) and a registration-based weight fee for vehicles over 3,500 pounds. You can see the exact amount on your renewal notice before you pay. If you've moved or your vehicle information has changed, you'll need to update those details during renewal—the online system will prompt you if changes are required.

Key Takeaways

  • Colorado sends renewal notices 30 to 60 days before expiration; the notice shows your renewal important date and the exact fee amount.
  • Online renewal through the Colorado Department of Revenue website is the fastest method and requires your VIN, registration number, and a payment method.
  • Mail renewal uses the form on your renewal notice and takes two to three weeks from receipt; in-person renewal at your county clerk's office is when ready.
  • Your renewal fee includes a base registration fee, an emission test fee if applicable, and a registration-based weight fee for heavier vehicles.
  • You must renew before your expiration date to avoid late fees and driving with an expired registration, which is a traffic violation in Colorado.

Renewing online through the Colorado Department of Revenue

The Colorado Department of Revenue website (dmv.colorado.gov) is the fastest way to renew. Go to the vehicle registration section and select "Renew a Vehicle Registration." Enter your VIN and current registration number, then review the vehicle information and renewal fee. You can pay by credit card, debit card, or electronic check. Once payment is processed, you'll receive a confirmation email with your new registration number and expiration date. Your new registration card will arrive by mail within 7 to 10 business days.

Online renewal works for most vehicles, but some situations require in-person or mail renewal: if your vehicle has a lien holder, if you're renewing a commercial vehicle, if your address has changed and you need to update it, or if you have an outstanding emissions violation. The website will tell you when ready if your vehicle requires a different renewal method.

Renewing by mail using your renewal notice

Your renewal notice includes a form and instructions for mail renewal. Fill out the form completely, including any changes to your address or vehicle information. Write a check or money order for the amount shown on the notice and mail both the form and payment to the address printed on the notice. Do not send cash. Include your current registration card if the form asks for it.

Mail the renewal at least three weeks before your expiration date to account for postal delays and processing time at the county clerk's office. The county will process your renewal and mail your new registration card. If you don't receive your new card within three weeks of mailing, contact your county clerk's office to confirm they received your payment. Keep your old registration card until the new one arrives.

Renewing in person at your county clerk's office

You can renew at your county clerk's office any business day during regular hours. Bring your renewal notice, current registration card, proof of insurance, and a valid photo ID. If your vehicle information has changed (address, ownership, or lien holder), bring documents showing the change. Payment can be made by cash, check, debit card, or credit card, depending on what your county accepts.

Processing is when ready, and you'll receive your new registration card on the spot. This is the best option if your registration expires soon and you don't have time to wait for mail delivery. County clerk offices are located in each county seat; you can find your office's address and hours on the Colorado Secretary of State website.

What happens if your registration expires

Driving with an expired registration is a traffic violation in Colorado. If you're stopped by law enforcement, you can be cited and fined. Your vehicle is also not legally registered, which means your insurance may not cover accidents or damage. If you miss your renewal important date, you can still renew using any of the three methods above, but you may owe a late fee in addition to the regular renewal fee. The late fee amount varies by county.

If your registration has been expired for more than 90 days, some counties require you to renew in person or by mail rather than online. Contact your county clerk's office if you're unsure whether you can renew online after a long lapse.

Emission testing requirements during renewal

Colorado requires emission testing for most vehicles in the Denver metro area and some other regions. Your renewal notice will tell you whether your vehicle needs testing. If testing is required, you must complete it before or during the renewal process. You can get tested at any Colorado emission testing station; the test takes about 10 minutes and costs around $25 to $30 (the amount varies by station).

If you renew online, you'll need to provide your emission test certificate number or pass status. If you renew by mail or in person, bring proof of your emission test. If your vehicle fails the test, you have 60 days to repair it and retest before your registration expires. Some repairs are covered under Colorado's emissions repair information program if your vehicle is older and you meet income requirements; contact your county clerk or the Colorado Department of Public Health and Environment for details.

Updating your address or vehicle information during renewal

If you've moved, changed your name, added or removed a lien holder, or made other changes to your vehicle information, you must update these details during renewal. Online renewal will prompt you to confirm or change your address and other key information. If you're renewing by mail, write the changes on the renewal form or include a separate letter explaining what has changed. If you're renewing in person, tell the clerk what information needs updating and bring supporting documents (such as a new driver's license showing your new address).

Some changes, such as adding a lien holder or changing ownership, may require additional forms or documents. The county clerk's office can tell you what you need before you submit your renewal. If you're unsure whether a change requires a separate transaction or can be handled during renewal, call your county clerk's office before you renew.

Frequently Asked Questions

Can I renew my registration if it's already expired?

Yes. You can renew by any method (online, mail, or in person) even if your registration is expired. However, you cannot legally drive the vehicle until the renewal is complete. If your registration has been expired for more than 90 days, some counties require in-person or mail renewal instead of online.

How long does my new registration card take to arrive if I renew online?

Your new registration card arrives by mail within 7 to 10 business days after you complete online renewal. You'll receive a confirmation email when ready with your new registration number and expiration date. You can use this information to prove your registration is current if you're stopped by law enforcement before the card arrives.

What if I don't receive my renewal notice?

Contact your county clerk's office to confirm your address on file. If your address is incorrect, update it before renewing. You can renew without the notice by going online or visiting your county clerk in person; you'll just need your VIN and current registration number.

Do I need a new emissions test every time I renew?

Only if your vehicle is in an area that requires emissions testing and your test has expired. Your renewal notice will tell you whether testing is required. Tests are valid for two years, so you may not need a new test every renewal cycle.

What payment methods does Colorado accept for registration renewal?

Online renewal accepts credit cards, debit cards, and electronic checks. Mail renewal requires a check or money order. In-person renewal at your county clerk's office accepts cash, checks, and cards, though some counties may have different policies—call ahead to confirm.