Connecticut Self-Employment Tax Calculator

Calculate your self-employment tax, federal income tax, and Connecticut state income tax as a freelancer or 1099 contractor. Connecticut has a progressive income tax with rates from 2% to 6.

Annual Tax Breakdown

1099 Income
$85,000
Business Expenses
-$10,000
Net Profit
$75,000
Net Earnings (92.35%)(SE tax base)
$69,263
Social Security (12.4%)
-$8,589
Medicare (2.9%+)
-$2,009
Total SE Tax
-$10,597
SE Deduction (50%)(reduces income tax)
$5,299
Federal Income Tax
-$6,794
State Income Tax
-$3,675
Total Tax Owed
$21,066

Summary

Total Income
$75,000
Total Taxes
-$21,066
After-Tax Income
$53,934
Effective Tax Rate(on total income)
28.1%

Quarterly Estimated Payments

Q1 (Jan-Mar)Due April 15
$5,267
Q2 (Apr-May)Due June 15
$5,267
Q3 (Jun-Aug)Due September 15
$5,267
Q4 (Sep-Dec)Due January 15 (next year)
$5,267
Each Quarterly Payment
$5,267

Tax Breakdown

See your complete freelancer financial picture

Your estimated quarterly tax payment is $5,267. Model your freelance income alongside expenses, savings, and investments in the full simulator.

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Connecticut Tax Overview for Freelancers

Connecticut has a progressive income tax with rates from 2% to 6.99%. The state also has a PFML payroll tax of 0.5%. Self-employed individuals in Connecticut pay federal self-employment tax (15.3%) plus federal income tax, and Connecticut state income tax on their net self-employment earnings.

Progressive rates up to 6.99%PFML payroll tax (0.5%)High property taxesPartial Social Security taxation

Self-Employment Taxes in Connecticut

If you work as a freelancer or independent contractor in Connecticut, your tax situation involves multiple layers: federal self-employment tax, federal income tax, and Connecticut state income tax. Understanding how each component works helps you plan your quarterly estimated payments and maximize your deductions.

Connecticut Income Tax for Freelancers

Connecticut has a progressive income tax with rates from 2% to 6.99%. The state also has a PFML payroll tax of 0.5%.

Cost of Living for Freelancers in Connecticut

Connecticut's cost of living is about 21% above the national average, with housing and healthcare costs being the primary drivers. As a freelancer in Connecticut, your effective earnings depend not just on your tax rate but also on what your after-tax income can buy. Consider local costs for housing, coworking spaces, and daily expenses when setting your rates.

Financial Tips for Connecticut Freelancers

  • Connecticut's PFML payroll tax adds to your overall tax burden — include it in your calculations
  • Connecticut has high property taxes but relatively high salaries in financial services and insurance
  • If you work in New York but live in Connecticut, understand the reciprocity rules
  • Connecticut partially taxes Social Security benefits above certain income thresholds

Key Connecticut Tax Features

  • Progressive rates up to 6.99%
  • PFML payroll tax (0.5%)
  • High property taxes
  • Partial Social Security taxation

Model Your Connecticut Freelance Finances Over Time

This calculator shows your Connecticut tax bill. Trajectoryy's full simulator models your freelance income alongside expenses, savings, investments, and more — month by month for years into the future.

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Frequently Asked Questions

How is self-employment tax calculated in Connecticut?
Self-employed workers in Connecticut pay federal self-employment tax (15.3% on 92.35% of net earnings), federal income tax, and Connecticut state income tax. Connecticut has a progressive income tax with rates from 2% to 6.99%. The state also has a PFML payroll tax of 0.5%.
How much will I owe in quarterly taxes as a freelancer in Connecticut?
Your quarterly estimated tax payment in Connecticut depends on your total tax liability — including SE tax, federal income tax, and Connecticut state income tax. Use the calculator above to estimate your quarterly payments. As a general rule, freelancers should set aside 25-35% of their net income for taxes.
What business deductions are available for Connecticut freelancers?
Freelancers in Connecticut can deduct the same federal business expenses as in any state: home office, equipment, software, health insurance, vehicle expenses, and more. These deductions also reduce your Connecticut state taxable income, providing additional state tax savings.
Does Connecticut have any special taxes for self-employed workers?
Connecticut does not have a separate self-employment tax. However, your net self-employment income is subject to Connecticut's regular income tax (6.99% top rate) in addition to federal self-employment tax and federal income tax.
Should I form an LLC or S-Corp as a freelancer in Connecticut?
The decision to form an LLC or S-Corp in Connecticut depends on your income level. Generally, if your net self-employment income exceeds $50,000-$60,000, an S-Corp election may save you money by allowing you to pay yourself a reasonable salary (subject to FICA/Medicare) while taking the rest as distributions (not subject to SE tax). Consult a Connecticut tax professional for advice specific to your situation.

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