Connecticut Car Sales Tax Calculator
Connecticut charges 6.35% sales and use tax on a used car purchase, verified September 15, 2026. There is no local tax on top. A trade-in is deducted before tax. Private-party sales are taxed too, paid when you title the car.
Figures verified September 15, 2026; sources linked per row. Re-checked quarterly, next due December 15, 2026.
Connecticut charges 7.75% instead of 6.35% on vehicles priced over $50,000; the calculator uses 6.35%.
Taxable amount: $25,000. Tax only; dealer doc fees, title and registration are separate, and some states tax the doc fee as part of the price. The local figure is an estimate from the state's published range unless you entered your own rate.
The Connecticut numbers, with sources
Each figure below was checked on September 15, 2026 against the page linked in the source column, and the wording the state uses is quoted so you can confirm it yourself.
| Item | Connecticut | Source |
|---|---|---|
| State rate (Sales and use tax) | 6.35% | portal.ct.gov(state source)As published: “6.35% (or 7.75% for vehicles over $50,000) sales and use tax” |
| Local tax range | None | portal.ct.gov(state source)As published: “6.35% (or 7.75% for vehicles over $50,000) sales and use tax” |
| Trade-in credit | Yes, full credit | portal.ct.gov(state source)As published: “full trade-in credit when computing the Connecticut Sales and Use tax” |
| Dealer doc fee | No cap (typically $716) | caredge.com(secondary, cites the statute)As published: “Connecticut: $716. This report is based on 93,200 verified out-the-door (OTD) price quotes collected between July 2025 and September 2026.” |
| Title fee | $25 | portal.ct.gov(state source)As published: “$25 title fee” |
| Registration (flat fee) | $40 | portal.ct.gov(state source)As published: “$120 registration fee” |
| Private-party sale taxed | Yes, paid when you title the car | portal.ct.gov(state source)As published: “Passenger vehicles and light duty trucks purchased from private owners (not a dealership) are subject to sales tax” |
- State rate: Connecticut charges 7.75% instead of 6.35% on vehicles priced over $50,000; the calculator uses 6.35%.
- Local tax: Connecticut has no local sales taxes; the DMV page lists only the statewide rate (towns bill a separate annual property tax on vehicles, which is not a purchase tax).
- Doc fee: CarEdge's report of 93,200 verified quotes (July 2025 to September 2026) puts the average doc fee in Connecticut at $716.
- Registration: $120 for a three-year registration, i.e. $40 per year (CGS 14-49(a): 'For the registration of each passenger motor vehicle, the fee shall be one hundred twenty dollars every three years'). Add-ons on the DMV fees page: $5 plate fee, $15 Clean Air Act fee, $15 Passport to the Parks fee ($24 from July 1, 2025 per the page), $10 administrative fee, $15 greenhouse gas fee if the vehicle has a certificate of origin, $10 lien fee if applicable.
Next steps
- Out-the-door price calculator: adds the Connecticut doc fee, title and registration to the tax for the full figure.
- Dealer doc fees by state and registration and title fees by state: see how Connecticut compares.
- All states: the full sales tax table.
Tax is fixed. The price is not.
CarWorthIt prices a specific VIN at its mileage against cars actually for sale near your ZIP code from $2.99. The $9.99 Negotiation Bundle adds an opening offer and a walk-away figure, so the number Connecticut taxes is the right one.
Connecticut car tax questions
Does Connecticut charge sales tax on a private-party car sale?
Yes. The buyer pays the use tax to the DMV when registering the vehicle; the purchase price and sales tax information are declared on the Application for Registration and Title (form H-13B). Tax is computed on the NADA average trade-in value or the bill of sale price, whichever is higher.
Does Connecticut give a trade-in credit on car sales tax?
Yes. The value of your trade-in is deducted from the price before Connecticut tax is calculated.
What is the dealer doc fee cap in Connecticut?
Connecticut sets no legal cap on dealer doc fees. Dealers typically charge $716. CarEdge's report of 93,200 verified quotes (July 2025 to September 2026) puts the average doc fee in Connecticut at $716. If the dealer will not drop the fee, ask for the same amount off the price.
Do local sales taxes apply to car purchases in Connecticut?
No. Connecticut has no local sales taxes; the DMV page lists only the statewide rate (towns bill a separate annual property tax on vehicles, which is not a purchase tax).
How much does a car title cost in Connecticut?
$25 (flat). Lien fee $10 if applicable (same page).
How much is annual car registration in Connecticut?
$40 a year for a passenger car, flat fee. $120 for a three-year registration, i.e. $40 per year (CGS 14-49(a): 'For the registration of each passenger motor vehicle, the fee shall be one hundred twenty dollars every three years'). Add-ons on the DMV fees page: $5 plate fee, $15 Clean Air Act fee, $15 Passport to the Parks fee ($24 from July 1, 2025 per the page), $10 administrative fee, $15 greenhouse gas fee if the vehicle has a certificate of origin, $10 lien fee if applicable.
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