Use the calculator below to compute sales tax on a Connecticut purchase. Default rate: 6.35% (combined state + local average).
Total (with tax)
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Pre-tax amount
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Sales tax
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About Connecticut sales tax
The combined state and local sales tax rate in Connecticut averages approximately 6.35%.
This number is the population-weighted average across all jurisdictions in the state. Your
specific city or county rate may be higher or lower.
The average combined state and local sales tax rate in Connecticut is approximately 6.35%. Specific cities or counties may be higher or lower.
Is sales tax different by city in Connecticut?
Yes. Many states allow local sales tax on top of the state rate. The number this calculator uses is the average combined rate, not your specific city or county rate. For an exact match, check with your local taxing authority.
Does Connecticut tax services?
Most states tax tangible goods but not services. Some states (notably South Dakota, New Mexico, Hawaii, West Virginia) tax services more broadly. Check your state DOR for specifics.
How do I back out the sales tax from a total price I already paid?
Use the extract mode in this calculator. Enter the total you paid and the applicable rate, and the tool divides the total by (1 + rate) to get the pre-tax price, then subtracts to find the tax portion. For example, a $107 total at 7% tax contains $100 of pre-tax price and $7 of sales tax.