Calculate exact Connecticut sales tax — 6.35% state rate, 6.35% combined average. Add tax to a price or back-calculate the pre-tax price from a total.
Connecticut has a 6.35% statewide sales tax rate. With county and city taxes added, the average combined rate in Connecticut is 6.35%. Your specific rate depends on your city and county. Use the calculator above to add tax to any price or extract the pre-tax amount from a total.
Connecticut imposes a 6.35% statewide sales tax on most tangible personal property and some services. Local jurisdictions — counties, cities, and special taxing districts — may add additional local sales taxes, resulting in a combined rate that varies by location. The average combined rate across Connecticut is 6.35%, but your exact city and county may differ.
Sellers in Connecticut collect the applicable combined rate from buyers at the point of sale and remit it to the Connecticut Department of Revenue on a regular schedule (monthly, quarterly, or annually depending on sales volume). Buyers who purchase goods out of state for use in Connecticut technically owe a use tax equal to the sales tax rate if the seller did not collect it.
On a $500 purchase at the Connecticut average combined rate of 6.35%: Tax = $500 x 6.35% = $31.75. Total price = $531.75. If you know only the total and need the pre-tax price, divide by (1 + 0.0635) = $470.15.
Use the calculator above to compute sales tax for any price and quantity. You can also use reverse mode to extract the pre-tax price from a total that already includes Connecticut sales tax.
State vs. combined rate
The Connecticut state rate is 6.35%. Local jurisdictions may add additional taxes, bringing the average combined rate to 6.35%. Your specific location may have a higher or lower combined rate. To find your precise local rate, search your city name plus "sales tax rate" or visit the Connecticut Department of Revenue website.
Common exemptions
Most states exempt prescription drugs from sales tax. Grocery exemptions vary by state. Clothing, digital goods, and services have varying taxability rules. If you are buying for resale or exempt business use, you may qualify for a Connecticut sales tax exemption certificate. Check the Connecticut Department of Revenue for a complete list of exemptions.
Business sales tax obligations in Connecticut
Businesses selling in Connecticut must register with the Connecticut Department of Revenue, collect the correct combined rate, file regular returns, and remit collected taxes on schedule. Online sellers may have economic nexus obligations in Connecticut under the Wayfair decision if they exceed $100,000 in Connecticut sales or 200 transactions per year.
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The Connecticut state sales tax rate is 6.35% in 2026. With county and city taxes added, the average combined rate across Connecticut is 6.35%. Your specific rate may be higher or lower depending on your exact location. Check the Connecticut Department of Revenue website for the precise combined rate in your city.
Connecticut sales tax exemption rules for groceries depend on the type of food. Many states exempt unprepared food (cold grocery items) but tax prepared food, hot food, and restaurant meals. Prescription drugs are exempt from sales tax in most states. Check the Connecticut Department of Revenue for current rules on grocery and food exemptions in your area.
To calculate Connecticut sales tax, multiply your pre-tax price by the applicable combined rate. Example: a $200 purchase at 6.35% combined rate = $200 x 0.0635 = $12.70 in tax, total $212.70. Use the calculator above for any amount. To reverse-calculate: divide the total price by (1 + 0.0635).
Online retailers with economic nexus in Connecticut must collect Connecticut sales tax. Since the South Dakota v. Wayfair Supreme Court decision (2018), out-of-state sellers exceeding $100,000 in Connecticut sales or 200 transactions per year must collect and remit Connecticut sales tax, even without a physical presence in the state. Major retailers automatically collect the correct Connecticut rate at checkout.
Connecticut imposes a use tax equal to the sales tax rate on purchases made out of state (including online) where Connecticut sales tax was not collected. If you buy a $1,000 item in a no-sales-tax state and bring it to Connecticut for permanent use, you technically owe Connecticut use tax of approximately $63.50 (6.35%). Businesses are more closely audited for use tax compliance than individuals.