Connecticut keeps sales tax simple: there is one statewide rate of 6.35% and no local add-ons, so the tax is identical in every town. This calculator applies that rate, plus the special meals, luxury, and computer-services rates and the grocery and prescription exemptions, and can either add tax to a price or remove it from a total.
How it works
For most goods and services the tax is the price multiplied by 6.35%. Selecting a category switches the rate:
general goods 6.35%
prepared meals/beverages 7.35% (6.35% + 1% meals surcharge)
luxury goods 7.75% (cars >$50k, jewelry >$5k, apparel >$1k)
computer/data services 1.00%
groceries, prescriptions exempt (0%)
In “add” mode the tool computes tax = price × rate and adds it. In “remove”
mode it backs the tax out of a tax-included total with
pre-tax = total ÷ (1 + rate).
Example
A $100 general purchase is taxed at 6.35%, giving $6.35 of tax and a $106.35 total. The same $100 spent on a restaurant meal is taxed at 7.35% ($7.35 tax, $107.35 total). A $100 grocery run is exempt, so the total stays $100.
Notes
Because Connecticut has no local sales tax, you never need to look up a city or county rate — only the item category matters. The luxury rate applies to the full price of a qualifying item, not just the amount over the threshold. Always confirm category treatment and any current rate changes at portal.ct.gov/DRS. All calculations run in your browser and nothing is uploaded.