Yes, in most cases you need to return your license plates in CT, or cancel the registration through the DMV, within 10 days of selling a vehicle. The same requirement applies when you move out of state or stop insuring a registered car. Plates in Connecticut belong to the owner, not the vehicle, so the obligation stays with you until you close it out.1Connecticut General Assembly. Connecticut General Statutes Chapter 246 – Motor Vehicles Skip the step and you can end up paying property tax on a car you no longer own, or facing insurance compliance fines that stack fast.
When You Have to Return or Cancel
Four situations put the responsibility on you:
- Selling or transferring the vehicle. Pull the plates before you hand over the keys. You have 10 days to return them or cancel the registration. If you don’t, the car stays on your DMV record and the property tax bills keep coming to you.2Connecticut Department of Motor Vehicles. Cancel Vehicle or Vessel Registration
- Moving out of state. Once you register the car in your new state, cancel the Connecticut registration and return the plates. Leaving both registrations active creates overlapping records and potential tax liability.2Connecticut Department of Motor Vehicles. Cancel Vehicle or Vessel Registration
- Dropping insurance on a registered vehicle. Connecticut requires continuous insurance on every registered vehicle. Cancel the registration first, then drop the policy. Do it in the wrong order and you’ll trigger the DMV’s insurance compliance process, which carries a $200 civil penalty.3Connecticut Department of Motor Vehicles. Compliance Issues
- Total loss. If your insurance company totals the car, take the plates off. The insurer handles the title. Canceling the registration is on you.
The 10-day deadline in the statute is written for sales, but the practical rule is the same across the board: cancel sooner rather than later. Every day the registration stays active is another day the plate number is tied to you.1Connecticut General Assembly. Connecticut General Statutes Chapter 246 – Motor Vehicles
When You Can Keep Your Plates
Two situations let you hold onto them.
Transferring Plates to a New Vehicle
When you buy a replacement, you can move your existing plates over. The DMV updates the record, and any time left on the old registration is credited to the new one. The DMV calls this “equity,” and the amount depends on how many full months remain, not counting the current month.4Connecticut Department of Motor Vehicles. DMV Fees No physical return is needed.
Taking a Vehicle Off the Road Temporarily
For a seasonal car or a project you’re restoring, you can cancel the registration and choose the “Customer Held” option for the plates. You keep them, and when you’re ready to drive again the DMV reassigns them to the same vehicle or to another one you own.5CT DMV. Terminate Registration (Plate Cancellation) The registration is officially closed, which shuts off the property tax and insurance compliance exposure, but your plate number is preserved.
How to Return or Cancel Your Plates
You have three options. Online is fastest and gives you an instant receipt.
Online
The CT DMV’s self-service portal handles registration cancellation from home. You’ll need your driver’s license number, date of birth, plate number, Social Security number, the street address on your license, and a credit or debit card. When you finish, the system issues a plate disposition receipt that serves as proof of cancellation.2Connecticut Department of Motor Vehicles. Cancel Vehicle or Vessel Registration For cancellations processed online since October 31, 2022, you can reprint the receipt through the portal later.
Online cancellation doesn’t collect the physical plates. Destroy them yourself so nobody can misuse the number. Cut or bend them until the characters are unreadable.
By Mail
Complete the Marker Plate Notice (Form E-159). If you also want a registration refund, add Form F-82. Send the forms and the plates to:
DMV Registry Record Section
60 State Street
Wethersfield, CT 06161-50572Connecticut Department of Motor Vehicles. Cancel Vehicle or Vessel Registration
Use a trackable shipping method. That tracking number is your only proof until the DMV processes the return and issues the disposition receipt. Keep copies of everything.
In Person
Most CT DMV offices take walk-in plate returns. Bring the plates and a valid ID. You’ll get a stamped plate disposition receipt on the spot, which is the strongest proof available.2Connecticut Department of Motor Vehicles. Cancel Vehicle or Vessel Registration Check office hours before you go.
Property Tax: The Real Reason to Move Fast
Connecticut towns assess property tax on motor vehicles using the October 1 grand list each year, at 70% of assessed value.6Connecticut General Assembly. Personal Motor Vehicle Property Tax Assessments and Rates If your registration is active on October 1, the car lands on the grand list in your town of record and you owe the tax, whether or not you still own it.
Timing matters. Sell a car in September, cancel the registration in November, and you’ve picked up another year of property tax on a vehicle someone else is driving. The DMV won’t unwind it retroactively. Prevention is far easier than cleanup.
What Happens If You Don’t Cancel
Connecticut’s insurance compliance system escalates quickly. If the DMV finds a lapse in coverage on a registered vehicle, you’ll first get a warning notice with a registration suspension. You can resolve it by signing a consent agreement, getting insurance, and paying a $200 civil penalty.3Connecticut Department of Motor Vehicles. Compliance Issues If you’d rather just cancel the registration, you can, but you still owe the $200 along with the plate receipt and signed consent agreement.
Ignore the notice for 30 days without entering a consent agreement, canceling the registration, or transferring ownership, and the DMV can suspend your driver’s license on top of the registration. Getting the license back takes a $175 restoration fee, paid by check or money order.4Connecticut Department of Motor Vehicles. DMV Fees
Operating an uninsured registered vehicle is also a criminal offense. A conviction carries a fine of $100 to $1,000, plus a one-month suspension of both registration and license for a first offense and six months for a second.7Justia Law. Connecticut Code Title 14 – Section 14-213b Your license won’t come back until you show the DMV that every vehicle in your name carries the required coverage.
Getting Some Money Back
Cancel with real time left on the registration and you may qualify for a partial refund of the registration fee. The statute sets the amounts by registration type:
- Biennial (two-year) registration: half the fee back if at least one year remains before expiration.
- Triennial (three-year) registration: one-third back if one to two years remain, or two-thirds back if two or more years remain.
Submit Form F-82 (Request for Registration Refund) with your cancellation paperwork.1Connecticut General Assembly. Connecticut General Statutes Chapter 246 – Motor Vehicles It’s easy to miss when you sell mid-cycle. The refund isn’t large, but there’s no reason to leave it behind.
If Your Plates Are Lost or Stolen
You can’t surrender plates you don’t have, but you still need to act. Report the loss or theft to the DMV, and file a police report if they were stolen. To get replacements, submit a Replacement Plate Application (Form E-45) with a fee of $45 for standard plates or $35 for Long Island Sound or veteran plates.8Connecticut Department of Motor Vehicles. Replacement Plate Application
One catch: you have to wait 10 months from the date you report the plates lost or stolen before the DMV will reissue the same plate number. If you need plates sooner, you’ll take a new registration with a different number. If you don’t plan to replace them at all, cancel the registration so the property tax and insurance compliance exposure ends.