Connecticut charges 3-6.99% state income tax. Use the self-employment tax calculator pre-loaded with Connecticut rates.
Open Self-Employment Tax Calculator →Freelancing in Connecticut means stacking up to 6.99% state income tax on top of the 15.3% self-employment tax and federal income tax. The combined marginal rate for freelancers here can exceed 44% on income in the 22% federal bracket. Careful quarterly estimated payment planning is critical to avoid underpayment penalties. This calculator factors in Connecticut's state tax and the deductible half of SE tax to give you an accurate picture.
Connecticut uses a graduated income tax with brackets ranging from 3-6.99%. Lower income is taxed at lower rates, with the 6.99% top rate applying only to income in the highest bracket. This progressive structure means your effective state tax rate is always lower than the top marginal rate. Connecticut does not have local income taxes, so the state graduated rate is the total state-level income tax burden.
The table below shows what you actually keep at five salary levels in Connecticut, accounting for federal tax, FICA, and Connecticut's graduated (3-6.99%) state tax.
See how Connecticut compares to other Northeast states. Each link takes you to the self-employment tax calculator landing page for that state.
For a comprehensive breakdown of Connecticut’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Connecticut take-home pay page.