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Updated 2026 · By ToolFern

Connecticut Sales Tax Calculator

Work out Connecticut sales tax on any price. The Connecticut state sales tax rate of 6.35% is pre-filled, so you can add it to a net price or pull it out of a total in seconds.

How should the amount be treated?
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Net (pre-tax)
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Tax amount
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Gross (total)

Results are in whatever currency you enter, the calculator just works with the numbers. Figures are rounded to two decimals for display.

Connecticut sales tax rate

The statewide Connecticut sales tax rate is 6.35%. On top of that, many cities and counties in Connecticut add their own local sales tax, which can push the combined rate you pay at the register noticeably higher. This calculator pre-fills the state base rate, replace it with your exact combined rate when you know it.

How to use the Connecticut sales tax calculator

  1. Enter the amount. Type the price you are starting from.
  2. Check the rate. The Connecticut rate is pre-filled at 6.35%. Change it to your local combined rate if needed.
  3. Pick add or extract. Add tax to a pre-tax price, or extract the tax already inside a total.
  4. Read the result. The net, tax amount and gross total update instantly.

Frequently asked questions

What is the Connecticut sales tax rate?

The Connecticut state sales tax rate is 6.35%. Local city and county taxes are often added on top.

Does this include local Connecticut taxes?

No, it pre-fills only the 6.35% state base rate. Enter your combined state-plus-local rate for an exact total.

Can I remove sales tax from a Connecticut total?

Yes. Choose the extract option and enter the tax-inclusive total to see the pre-tax price and the Connecticut tax portion.

Is this official tax advice?

No. It is a quick estimate. Verify rates with the Connecticut Department of Revenue for filings or invoices.

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Sales tax calculator by state

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Rates are statewide base figures and may change; local taxes vary. Not tax advice.