Connecticut sales tax
Connecticut charges a state sales tax of 6.35%. There are no local add-ons, so 6.35% is the rate everywhere in Connecticut. That combined rate is the 33rd highest of the 51 US states and DC.
What is the Connecticut sales tax rate in 2026?
| Component | Rate | What it means |
|---|---|---|
| State rate | 6.35% | Charged everywhere in Connecticut. |
| Typical combined rate | 6.35% | With no local add-ons, this is the rate statewide. |
To put the numbers in a sentence: the Connecticut state rate is 6.35%, and with no local add-ons the combined rate is 6.35% statewide.
What is the sales tax rate in my county in Connecticut?
Every one of Connecticut's counties has its own page with the rate, its components, and what the rate does not cover: Connecticut sales tax by county. The rate does not vary in Connecticut, but the county pages carry the exemptions and the caps, which is where it gets complicated.
What is unusual about sales tax in Connecticut?
Flat statewide rate with no local add-on anywhere in the state; certain luxury items (e.g., vehicles over $50,000, jewelry over $5,000) are taxed at a higher 7.75% rate.
How do I calculate sales tax on a purchase in Connecticut?
Multiply the taxable price by the combined rate. On a $100 purchase at the typical Connecticut combined rate of 6.35%, the tax is $6.35, for a total of $106.35. On a $1,000 purchase the tax is $63.50.
Two things change that arithmetic. Not everything is taxable: most states exempt some combination of groceries, prescription drugs and certain services. Use the sales tax calculator to run a different amount or a different state.
When does a business have to collect Connecticut sales tax?
A business with a physical presence in Connecticut has always had to register and collect. Since the Supreme Court's 2018 Wayfair decision, a remote seller with no physical presence also has to collect once it crosses the state's economic nexus threshold.
In Connecticut that threshold is $100,000 in sales and 200 separate transactions, measured over the 12-month period ending September 30. Note that exempt sales count toward the threshold in Connecticut, so you can cross it on revenue you never charged tax on.
Connecticut is one of the few states requiring BOTH prongs: more than $100,000 in gross receipts AND more than 200 retail sales in the 12 months ending September 30. Crossing only one does not create nexus; if both are exceeded, collection starts October 1 of the following year. Lowered from a $250,000 threshold effective July 1, 2019.
You can check your own numbers against every state with the economic nexus checker.
How do I find the exact sales tax rate for an address in Connecticut?
Use the state's own lookup rather than an average. Connecticut publishes an official rate finder at https://portal.ct.gov/drs, which returns the combined rate for a specific address. That is the figure that governs what you charge or what you should have been charged.
The flat truth on Connecticut sales tax
The number worth remembering is 6.35%, the typical combined rate, and because Connecticut has no local add-ons it is the actual rate everywhere in the state.
See also: Connecticut property tax by county and state income tax rates.
Sources
- Connecticut Department of Revenue Services / Tax Foundation, State and Local Sales Tax Rates (Jan. 2026)
- Connecticut official rate lookup
- Connecticut economic nexus guidance (Connecticut Department of Revenue Services (DRS), Sales and Use Taxes - Nexus page)
- Rates reviewed August 30, 2026. State base rates verified against each state's Department of Revenue; average local rates from the Tax Foundation and are statewide averages, not the rate at any single address. Use officialLookupUrl for an exact combined rate.