Connecticut car registration renews every two years, and you can renew online, by mail, or in person at a DMV office

Connecticut sends renewal notices about 45 days before your registration expires. The notice includes your renewal fee, which varies based on your vehicle's weight and type. You can renew through the Connecticut DMV website, by mail using the notice, or by visiting a DMV office in person. Online renewal is the fastest option and takes a few minutes; by mail takes one to two weeks; in-person visits are when ready but require a trip to an office.

Your registration expires on the last day of the month shown on your current registration card. Driving with an expired registration is illegal in Connecticut and can result in a fine. If you miss the renewal important date, you can still renew, but you may face a late fee in addition to the standard renewal cost.

Key Takeaways

  • Connecticut registration renews every two years, and the DMV mails a renewal notice about 45 days before expiration.
  • You can renew online at ct.gov/dmv, by mail using your renewal notice, or in person at any DMV office.
  • Online renewal is fastest and costs nothing extra; by-mail renewal takes one to two weeks and requires a check or money order.
  • Your vehicle must pass an emissions inspection before you renew if it is subject to testing under Connecticut law.
  • Late renewal adds a penalty fee to your standard renewal cost, so renewing before the expiration date saves money.

Renewing online through the Connecticut DMV website

The Connecticut DMV website at ct.gov/dmv allows you to renew most registrations online without visiting an office. You will need your renewal notice, your vehicle identification number (VIN), and a payment method (credit card, debit card, or electronic check). The process takes about five minutes, and your new registration is valid when ready after payment.

Online renewal is not available for all vehicle types. Commercial vehicles, vehicles with salvage titles, and registrations with certain special designations must be renewed by mail or in person. If your renewal notice does not offer an online option, you will see that clearly on the notice itself.

After you complete online renewal, print your confirmation email. You do not need to wait for a physical registration card to drive legally—the confirmation serves as proof of renewal until your new card arrives by mail, which typically takes five to seven business days.

Renewing by mail with your renewal notice

Your renewal notice includes everything you need to renew by mail. Write a check or money order for the amount shown on the notice, sign the back of the notice where indicated, and mail both to the address printed on the notice. Include your current registration card if you have it, though it is not required. Mail renewal takes one to two weeks for processing, plus mail delivery time.

Keep a copy of your signed notice and a record of when you mailed it. If your renewal does not arrive within three weeks of mailing, contact the DMV at 860-263-5700 to confirm receipt. Do not drive with an expired registration while waiting for your renewal by mail; the postmark date does not protect you if you are stopped by police.

Renewing in person at a Connecticut DMV office

You can walk into any Connecticut DMV office with your renewal notice and complete the process when ready. Bring your current registration card, a valid photo ID, and payment (cash, check, debit card, or credit card). The DMV office will issue you a temporary registration card on the spot, and your permanent card arrives by mail within five to seven business days.

DMV offices are located in Wethersfield, Norwalk, Waterbury, and Danielson. Hours vary by location, and some offices require appointments during certain times. Check ct.gov/dmv for current hours and to schedule an appointment if needed. In-person renewal is useful if your renewal notice was lost, if you need to make changes to your registration, or if you prefer to handle it when ready.

Emissions inspection requirements before renewal

Connecticut requires emissions testing for most gasoline-powered vehicles and all diesel vehicles, depending on model year and registration type. Your renewal notice will indicate whether your vehicle needs an inspection. You must pass the inspection before you can renew your registration—the DMV will not process a renewal without a passing inspection report.

Schedule your emissions test at any Connecticut emissions testing station. The test costs about $30 and takes 10 to 15 minutes. Once you pass, the testing station provides a report number. If you are renewing online, enter this number during the renewal process. If you are renewing by mail or in person, include the report or bring it with you.

If your vehicle fails the emissions test, you have 30 days to repair it and retest at no additional charge. After 30 days, you pay the full test fee again. Plan ahead so you have time to address any issues before your registration expires.

What to do if your renewal notice is lost or damaged

If you did not receive your renewal notice or it arrived damaged, you can still renew online or in person without it. For online renewal, use your VIN and current registration information instead of the notice number. For in-person renewal, bring your current registration card and photo ID to any DMV office.

If you need a replacement notice mailed to you, call the DMV at 860-263-5700. They can reissue the notice, though this adds a few days to the process. It is faster to renew online or in person if your important date is approaching.

Late renewal and penalty fees

If your registration expires before you renew, you can still renew it, but Connecticut adds a late fee. The penalty is typically $20 to $50 depending on how long past the expiration date you renew. You must renew before you can legally drive the vehicle again.

Renewing late does not affect your next renewal date—your new registration will still expire two years from the month you renew. However, driving with an expired registration can result in a traffic citation and fine separate from the late renewal penalty, so renew as soon as you realize your registration has lapsed.

Frequently Asked Questions

Can I renew my Connecticut registration if my vehicle has a lien on it?

Yes. A lien does not prevent renewal. The lienholder's name may appear on your registration documents, but you can renew through any method—online, by mail, or in person—without notifying the lienholder. The renewal process is the same as for vehicles you own outright.

What happens if I move to a different state before my registration expires?

You must register your vehicle in your new state within the timeframe required by that state, typically 30 to 60 days after moving. You do not need to renew your Connecticut registration. Contact your new state's DMV for registration requirements and fees.

Can I renew my registration if my license is suspended?

Yes. A suspended driver's license does not prevent vehicle registration renewal. However, you cannot legally drive the vehicle while your license is suspended. Renew the registration so the vehicle remains legal; address your license suspension separately with the DMV.

How much does Connecticut car registration renewal cost?

The renewal fee depends on your vehicle's gross vehicle weight rating (GVWR) and type. Passenger cars typically cost between $100 and $150 for two years. Your renewal notice shows the exact fee for your vehicle. Trucks, commercial vehicles, and specialty vehicles have different rates.

What if I sell my car before my registration expires?

You do not need to renew a registration for a vehicle you no longer own. Notify the DMV of the sale by submitting a Notice of Sale form, available at ct.gov/dmv. The new owner is responsible for registering the vehicle in their name.