Self-Employment Tax Calculator
Calculate self-employment tax for freelancers and contractors. Free calculator for Social Security and Medicare taxes on self-employment income.
Calculator
Your net profit after business expenses (Schedule C income)
for 2026
Estimated payment per quarter
Of net earnings
2024 Quarterly Payment Schedule
These are SE tax only. Add income tax to these amounts for total quarterly payments.
Tax-Saving Tips:
- Set aside 25-30% of each payment for taxes
- Maximize business deductions to reduce net earnings
- Consider S-Corp election if earning $60k+
- Contribute to Solo 401k or SEP IRA (reduces taxable income)
- Deduct 50% of SE tax on your tax return
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Understanding Self-Employment Tax
Self-employment tax covers Social Security and Medicare contributions for freelancers, contractors, and small business owners. Unlike employees who split these taxes with their employer (7.65% each), self-employed individuals pay the full 15.3% themselves.
Self-Employment Tax Breakdown
Applies to first $160,200 of self-employment income (2024 limit). Income above this is not subject to Social Security tax.
Applies to all self-employment income with no cap. Everyone pays Medicare tax on unlimited earnings.
Applies to self-employment income over $200,000 (single) or $250,000 (married filing jointly).
Calculation Formula
Example Calculation
Social Security Wage Base Cap
Social Security tax applies only to the first $160,200 of earnings (2024). If you earn more, you save 12.4% on the excess:
Note: Above $200k, additional 0.9% Medicare tax applies, making it 3.8% total (2.9% + 0.9%)
Quarterly Estimated Tax Payments
Pay 25% of estimated annual SE tax + income tax each quarter to avoid penalties
Reducing Self-Employment Tax
- Maximize Deductions: Every $1,000 in deductions saves ~$150 in SE tax
- S-Corp Election: Pay yourself reasonable salary (subject to SE tax) and take remaining profit as distributions (no SE tax)
- Home Office Deduction: Deduct portion of rent, utilities, insurance proportional to office space
- Business Expenses: Deduct all ordinary and necessary business expenses
- Retirement Contributions: Solo 401k or SEP IRA contributions reduce net earnings
- Health Insurance: Self-employed can deduct health insurance premiums
Employee vs Self-Employed Tax Comparison
You only see/pay 7.65%
But you deduct 50% on taxes
Pro Tip: Use InvoiceLaunch to track income throughout the year and set aside 25-30% of each payment for taxes (15.3% SE tax + 10-15% income tax). Automated tracking helps you avoid tax surprises and ensures you're ready for quarterly payments.
Frequently Asked Questions
What is self-employment tax?
Self-employment (SE) tax is Social Security and Medicare tax for self-employed individuals. It's 15.3% (12.4% Social Security + 2.9% Medicare) of your net earnings. Employees pay half (7.65%) and employers pay the other half, but self-employed people pay both portions.
How much self-employment tax do I owe?
SE tax is 15.3% of 92.35% of your net self-employment income. For example, if you earned $80,000 net, you'd owe about $11,304 in SE tax. Social Security tax is capped at the wage base ($160,200 for 2024), but Medicare tax has no cap.
Can I deduct self-employment tax?
Yes! You can deduct 50% of your self-employment tax as an adjustment to income on Form 1040. This deduction reduces your adjusted gross income (AGI) but doesn't reduce your SE tax itself. It's claimed even if you don't itemize deductions.
When do I pay self-employment tax?
SE tax is paid via quarterly estimated tax payments (April 15, June 15, Sept 15, Jan 15) and your annual tax return. Use Form 1040-ES to calculate quarterly payments. Underpaying can result in penalties.
Do I owe SE tax if I have a regular job too?
Maybe. If your W-2 wages already exceed the Social Security wage base ($160,200 for 2024), you don't owe the 12.4% Social Security portion on self-employment income - only the 2.9% Medicare portion.
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