Self-Employment Tax Calculator
Calculate self-employment tax (SE tax) and estimated quarterly payments for freelancers and sole proprietors.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
SE Tax = Net Income × 92.35% × 15.3%; Deduction = SE Tax × 50%
Self-employed individuals pay both the employee (7.65%) and employer (7.65%) share of FICA taxes. Making quarterly estimated payments avoids penalties.
Frequently Asked Questions
When are quarterly estimated taxes due?
April 15, June 17, September 16, January 15. Underpayment penalty applies if you owe more than $1,000 at filing.