1099 Self-Employment Tax Calculator
Calculate your 1099 self-employment tax, estimated quarterly payments, and total tax liability. For freelancers, contractors, gig workers, and sole proprietors.
2024 Tax Year | Updated with current IRS rates
Self-Employment Income
Total income before expenses
Deductible business expenses
Filing Status
Other Income (Optional)
Employment income (taxes already withheld)
Tax Summary
15.3% on 92.35% of net SE income (Social Security 12.4% + Medicare 2.9%)
Based on Single brackets after deductions
Quarterly Estimated Payments
To avoid penalties, pay estimated taxes quarterly:
Jan 1 - Mar 31
Apr 1 - May 31
Jun 1 - Aug 31
Sep 1 - Dec 31
Note: Pay via IRS Direct Pay or Form 1040-ES. Missing payments may result in underpayment penalties.
Tax Rates
Deductions Applied
- Half of SE tax deducted: $0
- Standard deduction (Single): $14,600
Self-Employment Tax Guide
How Self-Employment Tax Works
When you're self-employed, you pay both the employer and employee portions of Social Security and Medicare taxes. This is called self-employment tax (SE tax).
The SE Tax Calculation
- Start with net self-employment income (gross - expenses)
- Multiply by 92.35% (this is the taxable SE base)
- Apply 15.3% SE tax rate (12.4% Social Security + 2.9% Medicare)
- Deduct half of SE tax from income for federal income tax
Social Security (12.4%)
Applies to income up to $168,600 (2024). If you have W-2 income, the cap is shared.
Medicare (2.9%)
No income cap. Additional 0.9% applies to income over $200K (single) or $250K (married).
Quarterly Payment Due Dates
Q1
April 15
Q2
June 15
Q3
Sept 15
Q4
Jan 15
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