What You Need to Register a Car in Connecticut

Connecticut car registration is handled by the Department of Motor Vehicles (DMV). You'll register through your local DMV office or by mail, and the process requires proof of ownership, proof of residency, and a valid ID. Most people complete registration when they buy a car, renew an existing registration, or move to Connecticut from another state.

The state issues a registration certificate and a set of license plates. Your registration is valid for two years from the issue date, after which you'll need to renew. Connecticut does not use stickers on plates — your registration status is tracked in the DMV system.

Key Takeaways

  • You must register your vehicle within 30 days of purchase or moving to Connecticut, or you risk a fine.
  • Registration requires a title (or bill of sale if you don't have one yet), proof of residency, and a valid Connecticut ID or out-of-state ID with a Connecticut address.
  • You can register in person at any DMV office, by mail, or online through the Connecticut DMV website for renewals only.
  • A two-year registration costs between $120 and $180 depending on your vehicle's weight, plus any applicable taxes or fees.
  • If you finance or lease your vehicle, the lender or leasing company may handle registration on your behalf.

Documents You'll Need to Bring

Start by gathering your vehicle's title or bill of sale. If you bought the car from a dealer, they usually provide a bill of sale. If you bought it privately, ask the seller for a signed bill of sale showing the sale price and date. If the title is in someone else's name, you'll need a signed title transfer form (Form H-11) from the previous owner.

Next, bring proof of residency — a utility bill, lease agreement, or mortgage statement dated within the last 60 days. Your name and current Connecticut address must appear on the document. Finally, bring a valid ID: a Connecticut driver's license, a Connecticut ID card, or an out-of-state ID with your new Connecticut address written on it.

If someone else is registering the vehicle on your behalf, bring a signed power of attorney form (Form H-41) along with their ID. If the vehicle is financed, bring the loan agreement or a letter from the lender showing they hold a lien on the vehicle.

How to Register in Person at a DMV Office

Find your nearest DMV office on the Connecticut DMV website and check their hours before you go — some offices have limited schedules. You can walk in without an appointment at most locations, though wait times vary. Bring all documents listed above, plus your vehicle's VIN (visible on the dashboard or in your paperwork).

At the office, tell the clerk you're registering a vehicle. They'll review your documents, verify the VIN matches your title or bill of sale, and calculate your registration fee based on your vehicle's weight. You'll pay the fee, receive your registration certificate, and the DMV will mail your license plates to your address within one to two weeks.

If you're registering a vehicle with a lien, the DMV will note the lender's name on your registration. The lender will receive a copy of the registration certificate by mail.

Registering by Mail or Online

You can mail your registration documents to the Connecticut DMV if you prefer not to visit an office. read the registration form (Form H-1) from the Connecticut DMV website, fill it out completely, and mail it with copies of your title or bill of sale, proof of residency, and a copy of your ID. Include a check or money order for the registration fee. Mail everything to the address listed on the form.

Processing by mail takes two to three weeks. The DMV will mail your registration certificate and plates to your address. If there's a problem with your process, the DMV will contact you by phone or mail.

Online renewal is available only if you already have an active Connecticut registration and are renewing it. You cannot register a new vehicle online. Visit the Connecticut DMV website, log in with your license number and date of birth, and follow the prompts to renew. You'll pay by credit or debit card, and your new registration certificate will arrive by mail within one to two weeks.

Registration Fees and What Affects the Cost

Connecticut registration fees are based on your vehicle's gross weight rating (GWR) — the maximum weight the vehicle can safely carry, including passengers and cargo. The state publishes a weight table on the DMV website. For most passenger cars, a two-year registration costs between $120 and $180. Trucks, SUVs, and heavier vehicles cost more.

You may also owe sales tax on the vehicle if you haven't paid it yet. The tax rate varies by town but is typically 6% to 7.5% of the purchase price. If you bought from a dealer, they usually collect sales tax at the time of sale. If you bought privately, you'll owe tax when you register, and the DMV will calculate it based on the sale price you report.

Some vehicles are exempt from registration fees — for example, vehicles owned by the state or certain nonprofits. If you believe your vehicle qualifies for an exemption, bring documentation of the exemption status to the DMV office or include it with your mail process.

What Happens If You Miss the 30-Day important date

Connecticut law requires you to register your vehicle within 30 days of purchase or moving to the state. If you miss this important date, you cannot legally drive the vehicle on public roads. You'll also face a fine if you're stopped by police.

If you've missed the important date, register as soon as possible. Bring all the same documents you would normally bring, plus proof of the purchase or move date (such as a bill of sale or lease agreement). The DMV will not charge an additional penalty fee for late registration — you'll pay the standard registration fee. However, police can still cite you for driving an unregistered vehicle, so don't delay.

Renewing Your Registration

Your registration expires two years from the issue date. The DMV will mail you a renewal notice about 60 days before expiration. You can renew online, by mail, or in person at a DMV office. Online renewal is the fastest option — you can complete it in a few minutes and pay by credit card.

To renew, you'll need your current registration certificate, proof of residency (if you've moved), and payment for the renewal fee. If your vehicle's weight has changed significantly or you've made major modifications, bring documentation of the change. If your vehicle has failed an emissions test or has outstanding violations, you may not be able to renew until those issues are resolved.

If you renew before your registration expires, your new registration will start on the expiration date of your old one — you won't lose any time. If you renew after expiration, your new registration starts on the date you renew, so renewing promptly is worth doing.

Special Situations: Transfers, Leased Vehicles, and Out-of-State Moves

If you're transferring a vehicle to someone else, both you and the new owner must sign the title. The new owner then registers the vehicle in their name within 30 days. You should notify the DMV that you no longer own the vehicle to avoid liability for traffic violations or accidents involving that car.

If you lease a vehicle, the leasing company typically handles registration and renewal. You'll receive the registration certificate and plates, but the company's name will appear as the owner. When your lease ends, return the plates and certificate to the leasing company.

If you're moving to Connecticut from another state, you have 30 days to register your vehicle here. Bring your out-of-state title or registration, proof of residency in Connecticut, and your ID. The DMV will issue a Connecticut title and registration. You can keep your out-of-state plates until they expire, but most people switch to Connecticut plates at registration.

Frequently Asked Questions

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

The DMV mails plates within one to two weeks of registration. If you registered in person or by mail, check your registration certificate for the expected delivery date. If plates don't arrive within three weeks, contact the DMV office where you registered to confirm your mailing address is correct.

Can I register a vehicle I'm buying from a private seller the same day I buy it?

No. You need a signed title or bill of sale from the seller, which takes time to obtain. Once you have it, you can register at a DMV office the same day, but the plates will arrive by mail later. Plan to register within a few days of purchase to stay within the 30-day important date.

What if my vehicle's title is from out of state?

Bring your out-of-state title to a Connecticut DMV office. The DMV will issue a Connecticut title and registration. If your out-of-state title has a lien on it, bring documentation from the lender showing they consent to the transfer to Connecticut. This process takes longer than a standard registration — allow four to six weeks.

Do I need to register a vehicle I'm only keeping in Connecticut temporarily?

If you're keeping the vehicle in Connecticut for more than 30 days, yes. If you're passing through or staying fewer than 30 days, you don't need to register. However, if you're stopped by police, you'll need to prove you're not a resident and that your stay is temporary.

What if I lose my registration certificate?

Contact the DMV office where you registered and request a duplicate. Bring your ID and proof of residency. The DMV will issue a replacement certificate by mail within one to two weeks. There is a small fee for a duplicate certificate.