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

Connecticut vehicle registration expires on the last day of the month shown on your registration card — usually two years from when you first registered the vehicle. You do not have to wait until the expiration date to renew; Connecticut allows you to renew up to six months before expiration. The fastest route is online through the Connecticut DMV portal, which takes about 10 minutes if you have your current registration card and a valid payment method. If you prefer not to use the internet, you can renew by mail or visit a DMV office in person.

Renewing on time matters because driving with an expired registration is illegal and can result in a fine. If your registration lapses, you cannot legally operate the vehicle until you renew it — and the renewal process takes longer once it has expired than if you renew before the expiration date.

Key Takeaways

  • Connecticut registration renews every two years, and you can renew online starting six months before your expiration date.
  • Online renewal through the Connecticut DMV website is the fastest method and requires your registration card, vehicle identification number (VIN), and a credit or debit card.
  • Mail renewal takes two to three weeks and requires a completed form and a check or money order sent to the DMV address listed on the form.
  • If you renew in person at a DMV office, bring your current registration card, proof of insurance, and a valid photo ID.
  • Late renewal fees explore if your registration has already expired, and you cannot legally drive the vehicle until the new registration is issued.

Renewing online through the Connecticut DMV website

The Connecticut DMV website at ct.gov/dmv allows you to renew your registration without visiting an office. You will need your current registration card, your vehicle identification number (VIN), and a valid credit or debit card. Log into the DMV portal, select the vehicle you want to renew, confirm the information is correct, and pay the renewal fee. The system will issue your new registration when ready, and you can print a temporary registration document right away.

Online renewal is available only if your vehicle passed its most recent emissions test (if required in your area) and your insurance is current. If either of those items is missing or expired, the system will not allow you to complete the renewal online and will direct you to renew by mail or in person instead.

Renewing by mail

To renew by mail, request a renewal form from the Connecticut DMV or read it from ct.gov/dmv. Fill out the form completely, including your vehicle information and current mileage. Attach a check or money order for the renewal fee made payable to the State of Connecticut, and mail everything to the address listed on the form. The DMV processes mail renewals in two to three weeks under normal circumstances, though processing times can be longer during busy periods.

Keep a copy of what you mail for your records. If you do not receive your new registration within four weeks, contact the DMV to confirm they received your process. Do not drive with an expired registration while waiting for your renewal by mail — if you are stopped by police before your new registration arrives, you can be cited.

Renewing in person at a DMV office

Connecticut has DMV offices in multiple locations throughout the state. You can visit any office to renew your registration without an appointment, though wait times vary by location and time of day. Bring your current registration card, proof of current insurance, and a valid photo ID such as a driver's license or passport. The DMV staff will verify your information, collect the renewal fee, and issue your new registration on the spot.

In-person renewal is useful if you need your new registration when ready or if you are unable to renew online or by mail. It is also the best option if your vehicle information has changed — such as a new address or owner name — because the DMV can update your record while you are there.

Registration renewal fees and what they cover

Connecticut registration renewal fees depend on your vehicle's weight and whether it is a passenger car, truck, or motorcycle. Fees range but are typically between $100 and $200 for a standard passenger vehicle. The fee covers your two-year registration and includes the cost of your new registration card and license plate sticker (if applicable). Some vehicles require an emissions test before renewal; if yours does, you must complete the test and have the results on file before the DMV will issue your new registration.

If your registration has already expired, Connecticut adds a late fee to your renewal cost. The amount of the late fee depends on how long your registration has been expired. Renewing before your expiration date avoids this additional charge.

What happens if your registration expires

Driving with an expired registration is illegal in Connecticut. If you are stopped by police, you can receive a fine and your vehicle may be cited as unregistered. Your insurance may also deny a claim if you are in an accident while driving with expired registration, because most insurance policies require the vehicle to be legally registered.

If your registration has expired, you can still renew it, but the process is slower. You cannot renew online once your registration is expired — you must renew by mail or in person. The DMV will add a late fee to your renewal cost. To avoid these complications, renew your registration before the expiration date shown on your card.

Renewing a registration for a vehicle you recently purchased

If you recently bought a vehicle in Connecticut, you received a temporary registration document at the time of purchase. This temporary registration is valid for a limited time — usually 30 days — and allows you to drive the vehicle while you complete the permanent registration process. Once you have completed the initial registration and received your permanent registration card, you can renew it using the same methods described above when the two-year period expires.

If you purchased the vehicle out of state and are registering it in Connecticut for the first time, you will need to complete the initial registration process before you can renew. Contact the Connecticut DMV or visit ct.gov/dmv for information about registering a vehicle for the first time.

Frequently Asked Questions

Can I renew my registration if my vehicle failed its emissions test?

No. Connecticut requires an emissions test for most vehicles, and you cannot renew your registration until your vehicle passes. If your vehicle failed, you must have it repaired and retested before you can complete your renewal. Some repair shops can help you identify and fix the problem.

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

You should update your address with the Connecticut DMV as soon as possible. You can update your address online through the DMV portal, by mail, or in person at a DMV office. When you renew your registration, your new address will be printed on your registration card.

Can I renew my registration if my insurance has lapsed?

No. Connecticut requires proof of current insurance to renew your registration. If your insurance has lapsed, you must obtain new insurance and have it on file with the DMV before you can renew. Contact your insurance company to restore your coverage or purchase a new policy.

How long does it take to receive my registration if I renew online?

If you renew online, your new registration is issued when ready and you can print a temporary document right away. Your physical registration card will arrive by mail within one to two weeks. You can drive legally with the printed temporary registration until your card arrives.

What if I lose my registration card before it expires?

Contact the Connecticut DMV to request a replacement card. You can request a replacement online, by mail, or in person. There is a small fee for a replacement card. Once you receive your replacement, you can renew it at the normal time using any of the renewal methods described above.