Verified April 2026
How to Calculate Sales Tax in Capitol, Connecticut
2026 Step-by-Step Guide for Businesses & Consumers
Current Capitol Sales Tax Rate
| Jurisdiction | Rate |
|---|---|
| Connecticut State Sales Tax | 6.400% |
| Total Combined Rate | 6.400% |
How to Calculate Sales Tax in Capitol
-
1
Find the combined rate
The combined sales tax rate in Capitol is 6.400%. This equals: Connecticut state rate of 6.400% + County 0.000%.
-
2
Convert the percentage to a decimal
6.400 ÷ 100 = 0.0640
-
3
Multiply by your purchase amount
Example: $100.00 × 0.0640 = $6.40 in sales tax
-
4
Add tax to the original price
$100.00 + $6.40 = $106.40 total cost
What's Taxable in Connecticut?
Most tangible personal property is taxable in Connecticut. Check with the
Connecticut Department of Revenue for specific exemption categories.
Do You Have Nexus in Connecticut?
Economic Nexus Threshold
If your business has over $100,000 in annual
Connecticut sales or 200 transactions,
you are required to collect and remit Connecticut sales tax. This applies to out-of-state remote sellers too.
Expert Sales Tax Tips for Capitol
Out-of-State Sellers
Selling into Connecticut from out of state? Register before you cross the $100,000 threshold to avoid back taxes and penalties.
Frequently Asked Questions
Sales Tax Calculator
Using 6.400% rate for Capitol
$
Tax Amount
$0.00
Total with Tax
$100.00
Rate applied: 6.400% combined