Connecticut Sales Tax Calculator

Connecticut keeps its sales tax unusually simple: the state charges a flat 6.35% on most taxable purchases, and — unlike the vast majority of U.S. states — Connecticut does not allow cities or counties to add their own local sales taxes on top. That means the combined rate you pay at any register in Hartford, Stamford, New Haven, or anywhere else in the state is exactly 6.35% — the same statewide rate confirmed by the Tax Foundation for 2025.

To use this calculator, just enter the pre-tax price of the item or service and the tool automatically multiplies it by 6.35% to give you the tax amount and grand total.

Quick worked example: You buy a new laptop priced at $1,200 in Bridgeport. The Connecticut sales tax is $1,200 × 6.0635 = $76.20, making your total $1,276.20. No need to worry about a city surcharge — the rate is identical across all of Connecticut.

A few important exemptions to keep in mind: most unprepared groceries are exempt from Connecticut sales tax, as are prescription drugs and most medical devices. However, prepared food sold at restaurants is taxable at the standard 6.35% rate, and certain luxury items like jewelry over $5,000 or motor vehicles are taxed at higher special rates (7.75%). For everyday retail purchases, appliances, electronics, and clothing above $50, the 6.35% rate applies. This calculator is designed for general retail estimates — always consult the Connecticut Department of Revenue Services for complex transactions.