Self-Employment Tax Calculator
Estimates SE tax (Social Security + Medicare) on net self-employment income.
Inputs
- Net self-employment income ($)
Example
Self-employment tax: $8,478
| Taxable base (92.35%) | $55,410 |
|---|---|
| Social Security (12.4%) | $6,871 |
| Medicare (2.9%) | $1,607 |
| Deductible half | $4,239 |
How it works
SE tax = 15.3% of 92.35% of net earnings (Social Security 12.4% up to $176,100; Medicare 2.9%). Half is deductible for income tax. Excludes the 0.9% additional Medicare over $200k. 2025 estimate.
FAQ
How does the Self-Employment Tax Calculator work?
Estimates SE tax (Social Security + Medicare) on net self-employment income. SE tax = 15.3% of 92.35% of net earnings (Social Security 12.4% up to $176,100; Medicare 2.9%). Half is deductible for income tax. Excludes the 0.9% additional Medicare over $200k. 2025 estimate.
Is the Self-Employment Tax Calculator free?
Yes — every calculator on Calcova is free and you can download the results to Excel.