Connecticut Business Tax Calculator
Calculate corporate income tax, franchise tax, and gross receipts tax for businesses operating in Connecticut.
Why calculating business in Connecticut is different
Connecticut has a progressive income tax and relatively high cost of living with moderate sales taxes.
Connecticut Business Interactive Tool
This calculator uses the latest 2026 data for Connecticut, including the minimum wage of $15.69 and the specific state income tax rates (3% - 6.99%).
Frequently Asked Questions about Connecticut Business
What is the corporate tax rate in Connecticut?
Corporate tax structures vary. In addition to potential corporate income taxes, businesses in Connecticut must also consider unemployment insurance taxes, sales tax collection (6.35%), and local business licenses.
Do LLCs pay tax in Connecticut?
LLCs are typically pass-through entities, meaning profits pass through to the owners' personal tax returns and are taxed at the personal 3% - 6.99% rate. However, Connecticut may also impose an annual LLC franchise fee.