2026 rates
Connecticut Sales Tax Calculator
Connecticut charges a flat 6.35% statewide, with no local sales taxes, so the rate is the same at every address in the state.
Sales tax by city in Connecticut
| City | Combined rate |
|---|---|
| Hartford | 6.35% |
| New Haven | 6.35% |
| Stamford | 6.35% |
| Bridgeport | 6.35% |
| Norwalk | 6.35% |
How Connecticut sales tax works
Connecticut charges a single rate of 6.35% statewide with no local additions, which makes it one of the simpler states to sell into. The rate is the same in Hartford, New Haven, Stamford as anywhere else, so you do not need to look up the buyer's city to get the tax right.
That combined rate ranks Connecticut number 32 of 51 US jurisdictions, putting it close to the national average of 6.57%.
The major cities in Connecticut all sit at 6.35%, so the rate does not move much by address within the state.
Owing tax and being required to collect it are separate questions. Connecticut sets its economic nexus threshold at $250,000 in sales into the state. Below that you generally have no obligation to register; above it you do, and the obligation applies from the point you cross rather than retroactively across the whole year. Check your own sales into Connecticut against that figure before you register anywhere.
Rates below are the published 2026 figures. Local rates change more often than state rates, so verify with the Connecticut revenue authority for a transaction of any size, and remember that the rate is only one input: whether the product is taxable at all, and whether shipping is taxable, both vary by state.
Connecticut sales tax questions
What is the sales tax rate in Connecticut?
The state rate is 6.35%. With local additions averaging 0%, the typical combined rate is 6.35%.
Does Connecticut have local sales taxes?
No. Connecticut applies a single rate statewide, so the rate does not change by city or county.
When do I have to register for sales tax in Connecticut?
Once your sales into Connecticut pass $250,000 you cross the economic nexus threshold and are generally required to register and collect. Below that there is usually no obligation.
How do I work out sales tax backwards from a total?
Divide the tax-inclusive total by one plus the combined rate to recover the pre-tax price, then subtract. At 6.35% you divide by 1.0635. The main calculator has a reverse mode that does this.
Is sales tax charged on shipping in Connecticut?
It depends on how the charge is presented and whether the items are taxable. Some states tax shipping when it is part of a taxable sale and others do not. Confirm the current position with the Connecticut revenue authority before setting it in your checkout.
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