How is the tax base determined for private sales in Connecticut?

Under Connecticut DMV regulations, use tax is calculated on either the purchase price stated on the bill of sale or the NADA Official Used Car Guide (Eastern Edition) average trade-in value, whichever is higher.

Can I deduct my trade-in on a private vehicle sale in Connecticut?

No. Under Connecticut General Statutes § 12-408, trade-in credits are strictly restricted to transactions with licensed motor vehicle dealers. Private casual sales are taxed on the full purchase price or book value.

How much are Connecticut vehicle title and registration fees?

The Connecticut DMV title certificate fee is $25.00. Standard passenger registration is $120.00 for a three-year cycle ($40.00/year equivalent), plus mandatory state Clean Air and Passport to the Parks fees.

Verified for 2026 Connecticut Statutory Rates

Connecticut Private Party Vehicle Tax, Tags & Title Calculator

Calculate your true first-year out-of-pocket costs for a private vehicle sale in Connecticut. Accurately accounts for 6.35% excise/sales tax, $25 certificate of title fee, 1 or 2-year tag registration, and state-specific regulations.

Vehicle & Transaction Details

Enter purchase information to calculate true out-of-pocket costs in Connecticut.

State of Registration5 Regional States Active

Vehicle Type

Purchase Price (Agreed Sale Price)Connecticut 6.35% tax base

Vehicle Model Year7 years old (≤ 7 yrs rule)

Vehicle Weight ClassificationClass A Passenger

Registration TermConnecticut tag options

Powertrain / Fuel TypeEV surcharge rules

Financing & Lien FilingLien fee: $10.00

Trade-in Value (Optional)Connecticut: Non-Deductible

Connecticut Notice: Connecticut taxes the full agreed vehicle price — trade-ins do not reduce the tax base on private-party sales.

Official Notice & Statutory Disclaimers

Estimates only — not tax or legal advice. Verify with Connecticut Department of Motor Vehicles (DMV) or DRS.

Connecticut sales tax is 6.35% on the higher of purchase price or NADA book value (7.75% on vehicles over $50,000).

Trade-in allowances from private vehicle sales cannot be deducted from taxable purchase price in Connecticut.

Municipal property tax on motor vehicles is billed separately each year by your local city or town tax collector.

County & Local Tax Note: Connecticut sales/use tax is 6.35% (7.75% for luxury vehicles over $50,000) under C.G.S. § 12-408. Municipal personal property taxes are assessed annually by your town.

Estimated Total Breakdown

First-Year Out-of-Pocket Cost

Jurisdiction

Connecticut

Total True First-Year Cost

$1,057.50

Sales/Excise Tax + Title Certificate + Tags & Registration

Itemized Line ItemEstimated Fee

1Vehicle Sales / Excise Tax (6.35%)

6.35% assessed on vehicle Fair Market Value

$952.50

2Certificate of Title Fee

Standard state title certificate issuance

$25.00

3Lien / Security Filing Fee

Unfinanced / cash purchase (waived $0.00)

$0.00

4Registration & Tag Fee

Base license plates & tags

$80.00

Book Value Assessment Rule (≤ 7 Years Old)

Because this vehicle is 7 years old or newer (7 years old), Connecticut DMV may assess the 6.35% tax on book value instead of your purchase price unless accompanied by a verified or notarized bill of sale.

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Frequently Asked Questions

Connecticut Private Vehicle Sales & Tag Rules

Essential statutory answers regarding MVA excise taxes, titling requirements, and tag renewal fees.

Connecticut charges a standard 6.35% sales and use tax on private party motor vehicle purchases. If the vehicle purchase price or book value exceeds $50,000, a luxury tax rate of 7.75% applies instead.