Self-Employment Tax Calculator
Self-employment tax (Social Security and Medicare for the self-employed) and federal income tax on 1099 or business income for 2026, and the quarterly estimated payments to make.
Self-employment tax and quarterly payments by net income (single, no other wages)
| Net income | SE tax | Income tax | Each quarter |
|---|---|---|---|
| $20,000 | $2,826 | $249 | $769 |
| $40,000 | $5,652 | $2,281 | $1,983 |
| $60,000 | $8,478 | $4,511 | $3,247 |
| $100,000 | $14,130 | $11,616 | $6,436 |
| $150,000 | $21,194 | $22,191 | $10,846 |
| $250,000 | $29,851 | $46,572 | $19,106 |
How this calculator works
Self-employment tax is 15.3% (12.4% Social Security and 2.9% Medicare) on 92.35% of net earnings. Social Security applies only up to the $184,500 wage base for 2026, less any W-2 wages; 0.9% more Medicare applies above $200,000 ($250,000 joint). Half of the tax is deductible.
Income tax uses the 2026 brackets and standard deduction on net income less the deductible half.
What it assumes
- The qualified business income deduction (up to 20% of qualifying income) and other deductions can lower income tax; they aren't modeled.
- Quarterly payments are due April 15, June 15, September 15 and January 15.
Questions people ask
How much is self-employment tax?
15.3% of 92.35% of net earnings, about 14.1% of net income: on $60,000, $8,478.
Do I have to pay quarterly taxes?
If you expect to owe $1,000 or more when you file, generally yes. Paying at least 100% of last year's tax (110% if your income was over $150,000) in four installments avoids the underpayment penalty.
What is deductible for 1099 workers?
Ordinary and necessary business expenses, half of self-employment tax, health insurance premiums if you qualify, retirement contributions such as a SEP-IRA or solo 401(k), and often the qualified business income deduction.
At what income do I pay self-employment tax?
When net self-employment earnings are $400 or more in a year.
Related calculators
Sources
Updated by the RateHerald team. The maths is tested against worked examples; report a problem.