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Connecticut vehicle registration fees are processed through the Connecticut DMV, AAA offices, and Nutmeg State Financial Credit Union locations. Connecticut offers 1-year, 2-year, and 3-year registration options. Connecticut is a two-plate state with a dual sales tax structure that applies different rates above $50,000.

How Much Does It Cost to Register a Vehicle in Connecticut?

Connecticut charges a flat annual registration fee of $40 per year for standard passenger vehicles, regardless of vehicle weight. Additional environmental fees, the Passport to Parks fee, and emissions-related fees apply on top of the base fee.

Fee / ItemAmount
Passenger vehicle base registration fee (per year)$40.00
1-year registration total base$40.00
2-year registration total base$80.00
3-year registration total base$120.00
Clean Air / Federal Clean Air Act fee (gas/diesel, per 2 years)$15.00
Passport to Parks fee (per year, effective July 1, 2025)$24.00
Greenhouse Gas fee (new vehicle, first registration)$10.00
Smog/emissions exemption fee (new vehicle, 4 years or newer)$40.00
Administrative fee$10.00
Plate fee (new issuance)$7.00

Connecticut’s Passport to Parks fee increased to $24 per year effective July 1, 2025. For a 3-year registration, this adds $72 in Passport to Parks fees. Verify all current fees at portal.ct.gov/dmv before paying.

What Is the Plate Replacement Fee in Connecticut?

Replacing a Connecticut license plate costs $9.50 for a sticker replacement. Full plate replacement fees vary – check portal.ct.gov/dmv for current rates.

Fee / ItemAmount
Replacement registration sticker$9.50
Full plate replacementContact Connecticut DMV at portal.ct.gov/dmv for current fee
Processing fee (AAA or Nutmeg SFCU)Up to $8.00 additional convenience fee

What Vehicle Taxes Apply in Connecticut?

Connecticut has a dual sales tax structure for vehicle purchases. Vehicles priced at $50,000 or less are taxed at 6.35%. Vehicles over $50,000 are taxed at 7.75% on the full amount.

Fee / ItemAmount
Sales tax – vehicles $50,000 and under6.35%
Sales tax – vehicles over $50,0007.75% on total purchase price
Private sale use taxSame rates as sales tax – based on purchase price
Annual property tax on vehiclesAssessed by town/city at local mill rate – often significant

Connecticut municipalities assess annual property taxes on registered vehicles based on the vehicle’s assessed value and the local mill rate. This tax is separate from DMV registration fees and is billed by your town’s tax collector. It can be a substantial annual expense depending on vehicle value and municipality.

Does Connecticut Require an Emissions Test Fee?

Connecticut requires annual emissions inspections for most gasoline-powered vehicles. New vehicles (typically 4 years old or newer) pay a $40 emissions exemption fee in lieu of testing. Electric vehicles are exempt from the emissions test but still pay the exemption fee. Failed emissions tests result in a 30-day window to repair and retest before registration renewal is blocked. Testing is done at Connecticut Air Care stations.

What Are the Insurance Requirements for Registration in Connecticut?

Connecticut requires all registered vehicles to carry minimum liability insurance. Insurance must be active continuously – a lapse can result in registration suspension.

Fee / ItemAmount
Bodily injury – per person$25,000
Bodily injury – per accident$50,000
Property damage – per accident$25,000
Uninsured motorist – per person$25,000
Uninsured motorist – per accident$50,000

Are There Any Registration Penalties or Late Fees in Connecticut?

Connecticut provides a 5-calendar-day grace period after registration expiration, after which a $10 late fee applies.

Fee / ItemAmount
Grace period5 calendar days after expiration
Late fee after grace period$10.00

Is There a Registration Grace Period in Connecticut?

Connecticut provides a 5-calendar-day grace period after your registration’s expiration date. After those 5 days, a $10 late fee applies. Driving with expired registration beyond the grace period is a traffic violation.

Can I Get a Registration Fee Refund in Connecticut?

Connecticut allows a refund of the second year of a two-year registration when plates are turned in for cancellation. A refund request must be made by mail to the Connecticut DMV. Contact the DMV at portal.ct.gov/dmv for the current refund procedure and form.

Frequently Asked Questions

What is the base registration fee in Connecticut?
$40 per year for standard passenger vehicles, regardless of weight. Add the Clean Air fee ($15 per 2 years), Passport to Parks ($24/year), and emissions fees where applicable.
How much does it cost to replace a license plate in Connecticut?
$9.50 for a replacement registration sticker. Contact the Connecticut DMV at portal.ct.gov/dmv for current full plate replacement fees.
Does Connecticut charge a vehicle property tax?
Yes. Connecticut charges 6.35% sales tax on vehicles priced $50,000 and under, and 7.75% on vehicles over $50,000. Annual municipal property taxes on vehicles are also assessed by your town/city.
What is the late fee for expired registration in Connecticut?
$10.00 after the 5-calendar-day grace period following expiration.
What are Connecticut's minimum auto insurance requirements?
Minimum $25,000 per person / $50,000 per accident for bodily injury, $25,000 for property damage, and $25,000/$50,000 for uninsured motorist coverage.