The Connecticut state sales tax rate is 6.35% in 2026. When county and city taxes are added, the combined rate ranges from 6.35% in areas with no local additions up to 6.35% in the highest-taxed jurisdictions. The most populated areas of Connecticut — including Fairfield County — have a combined rate of 6.35%.
Connecticut has a flat 6.35% statewide rate with no local additions. It is one of the few US states where the rate is identical everywhere in the state.
💡 Quick Reference: $100 purchase in Connecticut at the average combined rate costs approximately $106.35 after tax. Use the calculator above to find the exact amount for any county or city in Connecticut.
Groceries in Connecticut are exempt from Connecticut sales tax. Clothing purchases are clothing under $50 per item is exempt. Prescription drugs and medical devices are generally exempt from sales tax in Connecticut, as they are in most US states.
Common Connecticut Sales Tax Exemptions
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Prescription Medicine
Prescription drugs are fully exempt from Connecticut sales tax.
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Grocery Food
Unprepared groceries are exempt from Connecticut sales tax in Connecticut.
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Manufacturing Equipment
Equipment used directly in manufacturing is generally exempt.
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Agricultural Supplies
Seeds, livestock, and farm feed are generally exempt in Connecticut.
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Clothing
Clothing is clothing under $50 per item is exempt in Connecticut.
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Textbooks
Textbooks for educational use are often exempt or reduced rate.
How Does Connecticut Sales Tax Work?
Sales tax in Connecticut is collected at the point of purchase by retailers and remitted to the Connecticut Department of Revenue. The total rate you pay is the sum of the Connecticut state rate (6.35%) plus any applicable county and city rates in your location.
Businesses with a physical presence in Connecticut — including offices, warehouses, or employees — have sales tax nexus and must collect and remit Connecticut sales tax. Since the 2018 Supreme Court ruling in South Dakota v. Wayfair, remote sellers with $100,000+ in Connecticut annual sales or 200+ Connecticut transactions must also register and collect Connecticut sales tax even without a physical presence.
📅 Connecticut Sales Tax Filing: Returns are typically due on the 20th of the month following the reporting period. Filing frequency (monthly, quarterly, or annual) is assigned by the Connecticut Department of Revenue based on your sales volume. File and pay online through the Connecticut state tax portal.
The Connecticut state sales tax rate is 6.35% in 2026. With county and city additions, combined rates range from 6.35% to 6.35% depending on your location. The most common combined rate in populated Connecticut counties is around 6.35%. Use the calculator above to find the exact rate for your specific county and city.
Groceries in Connecticut are exempt from Connecticut sales tax. This applies to unprepared food items purchased at grocery stores. Prepared food (restaurant meals, hot food from a deli counter) is generally taxed at the full combined rate regardless of state grocery exemptions.
To calculate Connecticut sales tax, multiply your purchase amount by the combined rate (as a decimal). For example, a $200 purchase in Fairfield County at 6.35%: $200 × 0.635 = $12.70 in sales tax, making the total $212.70. Or simply use the free Connecticut sales tax calculator at the top of this page.
Yes, if you meet Connecticut’s economic nexus threshold. Remote sellers must collect and remit Connecticut sales tax if they have $100,000 or more in Connecticut sales or 200+ separate Connecticut transactions in a calendar year. This applies to all online sellers including Amazon FBA sellers, Shopify stores, and marketplace sellers. Marketplace facilitators like Amazon, Etsy, and eBay collect and remit on behalf of their sellers in Connecticut.
Most services are not subject to Connecticut sales tax, which primarily applies to the sale of tangible personal property. However, certain services are taxable in Connecticut — including some digital services, repair services, and services that are inseparable from a taxable product. Consult the Connecticut Department of Revenue or a tax professional for guidance on specific service types.
The highest combined sales tax rate in Connecticut is 6.35%, which occurs in areas with the maximum local tax additions on top of the 6.35% state base rate. The lowest rate is the state base rate of 6.35% in areas with no local taxes. See the county-by-county table above for the exact rate in each area of Connecticut.