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

Connecticut requires you to renew your vehicle registration before your current registration expires. The state offers three ways to renew: online through the Connecticut DMV website, by mail using the renewal notice you receive, or in person at a DMV branch. Most people renew online or by mail because both are faster than visiting an office. You will need your current registration card, proof of a passing emissions test (if your vehicle requires one), and proof of insurance.

The renewal notice arrives in the mail about 60 days before your registration expires. This notice contains your renewal number and instructions for each method. If you do not receive a notice, you can still renew online by entering your vehicle identification number (VIN) and license plate number on the DMV website. Renewing early is common — you can renew up to six months before expiration without penalty.

Key Takeaways

  • Connecticut vehicle registration renews every two years, and you must renew before the expiration date on your registration card.
  • Online renewal through the Connecticut DMV website is the fastest method and requires your current registration card and proof of insurance.
  • Mail renewal uses the renewal notice sent to you and takes about two weeks to process after the DMV receives it.
  • Vehicles over 10 years old and most commercial vehicles require a passing emissions test before renewal, which you must complete at a state-certified facility.
  • If your registration has already expired, you can still renew, but driving with an expired registration can result in a fine.

Online renewal through the Connecticut DMV website

The Connecticut DMV website allows you to renew online if your vehicle meets certain conditions. Your vehicle must have a valid inspection, current insurance, and no outstanding violations or holds on your registration. You will need your registration card, VIN, license plate number, and proof of insurance. The fee is paid by credit card or debit card during the process.

After you complete the online renewal, the DMV mails your new registration card to the address on file. This typically takes 7 to 10 business days. You can print a temporary registration receipt when ready after completing the renewal, which is valid for 30 days and serves as proof of renewal if you are stopped by law enforcement. Online renewal is available 24 hours a day, seven days a week.

Mail renewal using your renewal notice

If you prefer to renew by mail, use the renewal notice sent by the DMV. Fill out the notice, include a check or money order for the renewal fee, and mail it to the address printed on the notice. You must also include proof of a passing emissions test if your vehicle requires one. Mail the package at least two weeks before your registration expires to allow time for processing.

The DMV processes mail renewals in the order they are received. Processing typically takes 10 to 14 business days after the DMV receives your renewal. Your new registration card will be mailed to you once processing is complete. Keep your old registration card until you receive the new one. If your renewal notice was lost or damaged, you can request a duplicate by calling the DMV or visiting the website.

Emissions testing requirements and where to get tested

Connecticut requires an emissions test for most vehicles over 10 years old and all commercial vehicles. Newer vehicles and certain hybrid or electric vehicles may be exempt. The test must be completed at a state-certified emissions testing facility before you renew your registration. The test costs between $30 and $50 depending on the facility.

You can find certified testing facilities through the Connecticut DMV website or by calling the DMV. The test takes about 15 minutes. Once your vehicle passes, the facility provides a receipt or certificate showing the passing result. You must include this proof with your mail renewal or present it if renewing in person. If your vehicle fails the test, you have 30 days to make repairs and retest at no additional charge.

In-person renewal at a DMV office

You can renew your registration in person at any Connecticut DMV branch. Bring your current registration card, proof of insurance, and proof of a passing emissions test if required. If you do not have your renewal notice, bring your VIN and license plate number. Processing at the office is when ready — you will receive your new registration card before you leave.

DMV offices have varying hours and wait times. Visiting early in the week or early in the day typically means shorter waits. Some offices accept walk-ins, while others operate by appointment. Check the Connecticut DMV website for the office nearest you, current hours, and whether you need to book an appointment. In-person renewal is useful if your registration has already expired or if you need your new card when ready.

What happens if your registration expires

Driving with an expired registration is illegal in Connecticut and can result in a fine. If you are stopped by law enforcement, you may receive a citation. The fine amount varies but typically ranges from $75 to $150 for a first offense. You can still renew your registration after it expires — there is no grace period, but the renewal process is the same.

If your registration expired more than a few months ago, contact the DMV before renewing to check whether any holds or violations are on your account. Some situations, such as unpaid parking tickets or insurance lapses, can prevent renewal. The DMV can tell you what must be resolved before you can renew. Once those issues are cleared, you can renew using any of the three methods.

Registration fees and what they cover

Connecticut registration renewal fees depend on your vehicle type and weight. Passenger vehicles typically cost between $120 and $180 for a two-year registration. Commercial vehicles, trucks, and vehicles over a certain weight class have different fees. The fee covers your registration for two years from the expiration date of your current registration.

The fee includes the registration card and registration sticker (if applicable). Some vehicles display a sticker on the license plate; others use only the registration card as proof. The DMV website lists the exact fee for your vehicle based on its type and weight. If you are unsure of your vehicle's classification, the DMV can tell you when you call or visit in person.

Frequently Asked Questions

Can I renew my registration if my vehicle inspection is expired?

No. Connecticut requires a current vehicle inspection before you renew your registration. If your inspection has expired, you must complete a new inspection at a state-certified facility before renewing. The inspection is separate from the emissions test and costs between $15 and $25.

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

Update your address with the Connecticut DMV before renewing. You can update your address online, by mail, or in person. When you renew, your new registration card will be mailed to your updated address. If you renew before updating your address, the card will go to your old address.

Can I renew my registration if I have unpaid parking tickets?

Unpaid parking tickets in Connecticut can prevent registration renewal. Contact the municipality where the ticket was issued to pay it or set up a payment plan. Once the ticket is resolved, you can renew your registration. The DMV can tell you whether holds exist on your account.

How long is my temporary registration receipt valid?

The temporary registration receipt from online renewal is valid for 30 days. This gives you time to receive your permanent registration card in the mail. If you are stopped by law enforcement during this period, show them the temporary receipt as proof of renewal.

What if my vehicle is registered in another state but I now live in Connecticut?

You must register your vehicle in Connecticut within 30 days of establishing residency. Contact the Connecticut DMV for information about out-of-state vehicle registration. You will need to provide proof of Connecticut residency, your current out-of-state registration, and proof of insurance.