Self-Employment Tax Calculator

Your net self-employment income is used to determine the combined Social Security and Medicare taxes you owe as a self-employed individual. The IRS requires self-employed people to pay both the employer and employee portions of these taxes. Half of the SE tax is deductible on your income tax return. If your income exceeds certain thresholds, an additional Medicare tax may apply. All math runs locally in your browser — nothing is sent to a server.