What Colorado requires for car registration

Colorado requires you to register any vehicle you own or operate in the state within 30 days of becoming a resident or purchasing a vehicle. You'll need to register through the Colorado Department of Revenue, Division of Motor Vehicles (DMV). The state issues a registration certificate and license plate, both of which must be current to legally drive.

Registration in Colorado is tied to your vehicle's inspection status. You cannot complete registration without a valid emissions or safety inspection, depending on your vehicle type and where you live. The inspection must be done at an authorized inspection station before you go to the DMV.

Colorado charges registration fees based on your vehicle's age, type, and weight. Passenger cars, motorcycles, and commercial vehicles each have different fee structures. The state also charges an additional fee for the license plate itself. Fees vary and change annually, so you'll want to confirm the current amount when you're ready to register.

Key Takeaways

  • You must register your vehicle within 30 days of moving to Colorado or buying a vehicle, through the Colorado Department of Revenue Division of Motor Vehicles.
  • A current emissions or safety inspection from an authorized station is required before registration and cannot be skipped.
  • Registration fees depend on your vehicle's age, type, and weight, and the state updates these amounts each year.
  • You can register online, by mail, or in person at a DMV office, and the method you choose affects how long the process takes.
  • Your registration certificate and license plate must both be current and visible on your vehicle to drive legally in Colorado.

Documents you'll need to bring or submit

Start with proof of ownership. If you bought the vehicle from a dealer, you'll have a temporary registration document. If you bought it from a private seller, you need a bill of sale signed by both parties. If you're transferring registration from another state, bring your out-of-state title or registration document.

You'll also need proof of Colorado residency — a utility bill, lease, mortgage statement, or bank statement dated within the last 60 days works. Bring a valid government-issued ID (driver's license, passport, or state ID). If someone else will be on the registration with you, they'll need to sign the process and provide their own ID.

Bring proof of the vehicle's inspection. This is the inspection report from an authorized Colorado inspection station, not the inspection itself. The report must be current (issued within the last 30 days for most vehicles). You cannot register without it.

How to register online, by mail, or in person

Online registration is available through the Colorado DMV website if your vehicle qualifies. You can renew an existing Colorado registration online, but new registrations (for vehicles never registered in Colorado) typically require an in-person visit or mail submission. The online system will tell you whether your vehicle is may be able to access when you start the process. Online registration takes a few minutes, and you'll receive your registration certificate by mail within 7 to 10 business days.

Mail registration works for new registrations if you have all required documents. Fill out the process form (available on the Colorado DMV website), include your inspection report, proof of residency, proof of ownership, and a check or money order for the registration fee. Mail everything to the address listed on the form. Processing takes 2 to 3 weeks from the date the DMV receives your packet. Your registration certificate and license plate will arrive separately by mail.

In-person registration at a DMV office is the fastest option if you need your registration quickly. Bring all documents listed above, plus the inspection report. You'll fill out the process on site, pay the fee (cash, check, or card depending on the office), and receive your registration certificate when ready. License plates are ordered and mailed to you. Most in-person visits take 30 minutes to an hour, depending on how busy the office is.

Registration fees and what affects the cost

Colorado's registration fee structure is based on your vehicle's age, type, and weight. A newer passenger car costs more to register than an older one. Motorcycles have a lower fee than cars. Trucks and commercial vehicles are charged by weight class. The state publishes a fee schedule each year, and you can find the current rates on the Colorado DMV website.

In addition to the base registration fee, you'll pay a separate fee for the license plate itself. If you're transferring a plate from another state, you'll still pay Colorado's plate fee. Some vehicles may may have access to for reduced fees — for example, electric vehicles have a different fee structure than gas-powered cars. Ask the DMV staff or check the website to see if your vehicle qualifies for any adjustment.

You may also owe sales tax on the vehicle if you haven't already paid it. This is separate from registration fees and is calculated based on the vehicle's purchase price. The DMV will tell you whether sales tax is due when you register.

Renewing your Colorado registration

Colorado registration is valid for one or two years, depending on your vehicle type and when you registered it. Your registration certificate shows the expiration date. You can renew online, by mail, or in person using the same methods as initial registration.

The DMV sends renewal notices by mail about 60 days before your registration expires. The notice includes a renewal form and the amount due. You don't have to wait for the notice to renew — you can renew anytime in the 60 days before expiration. If you renew online, the process takes just a few minutes and your new certificate arrives by mail within a week.

Before renewing, make sure your vehicle has a current inspection. If your inspection has expired, you must get a new one at an authorized station before the DMV will renew your registration. The inspection requirement applies to all renewals, not just initial registrations.

What happens if your registration expires

Driving with an expired registration is illegal in Colorado. If you're stopped by law enforcement, you can receive a ticket and fine. The amount varies depending on how long your registration has been expired and whether you have other violations.

If your registration has expired but you have a renewal notice or proof that you've submitted a renewal process, you may have a grace period to show the officer. However, it's better not to rely on this — renew before the expiration date to avoid any risk.

If your registration has been expired for more than a year, you may need to re-register your vehicle as if it were new, rather than straightforward renewing. This means you'll need a current inspection and all the documents required for initial registration. Contact the Colorado DMV to find out what's required in your situation.

Special registration situations in Colorado

If you're registering a vehicle you just bought from a private seller, you have 30 days to complete registration. During that time, you can drive with the bill of sale and a temporary permit (if the seller provides one), but you must have the vehicle inspected and registered before the 30 days end.

If you're moving to Colorado from another state, you have 30 days to register your vehicle here. You'll need your out-of-state title or registration, proof of Colorado residency, and a current inspection. Some states' titles are accepted as proof of ownership; others require additional paperwork. The DMV can tell you what you need based on your vehicle's current state of registration.

If you're registering a vehicle that's jointly owned by two people, both owners must sign the process. Both owners' names will appear on the registration certificate. If ownership changes later, you'll need to re-register with the new owner's information.

Frequently Asked Questions

Can I register my car online if I just bought it from a private seller?

No. Online registration is only for renewing an existing Colorado registration. New registrations require either an in-person visit or mail submission. You'll need to bring or mail your bill of sale, inspection report, proof of residency, and ID.

What if my vehicle inspection expires before my registration does?

You must get a new inspection before your current registration expires. Colorado requires a valid inspection to renew registration. If your inspection expires first, schedule a new one at an authorized station, then renew your registration.

Do I need to register my vehicle if I only drive it occasionally?

Yes. If you own a vehicle in Colorado, you must register it regardless of how often you drive it. The only exception is if the vehicle is not operable and you have a non-operational vehicle permit, which is a separate process through the DMV.

How long does it take to get my license plate after I register?

License plates are mailed to you after registration is complete. If you register in person, you'll receive your registration certificate when ready, but the plate arrives by mail within 1 to 2 weeks. If you register by mail or online, both the certificate and plate arrive within 7 to 10 business days.

What if I move to a different county in Colorado after registering?

You don't need to re-register your vehicle just because you moved counties. Your registration remains valid as long as you update your address with the DMV. You can update your address online, by mail, or in person at any DMV office.