STATE OF CONNECTICUT
DEPARTMENT OF REVENUE SERVICES

2021 INCOME TAX CALCULATOR

PURPOSE: Use this calculator to determine your Connecticut income tax. Select the filing status as checked on the front of your tax return and enter your Connecticut Adjusted Gross Income (AGI) from Form CT-1040, Line 5 or Form CT-1040NR/PY, Line 7 to determine your tax liability. Press the "Calculate Your Tax" button when complete. Your tax is instantly calculated for you.

 

Select filing status as indicated on the front of your tax return:  Single Married Filing Jointly/Qualifying Widow(er) Maried Filing Separately Head of Household

Enter your Connecticut AGI from Form CT-1040, Line 5, or Form CT-1040NR/PY, Line 7: