When you work as a freelancer, independent contractor, sole proprietor, or gig worker, you don't have an employer splitting payroll taxes with you. Instead, you pay self-employment (SE) tax — covering both the employee and employer portions of Social Security and Medicare. In 2026, that rate is 15.3% on your net self-employment income, on top of ordinary federal income tax.
2026 Self-Employment Tax Rates and Wage Base
| Component | Rate | Applies To |
|---|---|---|
| Social Security | 12.4% | Net SE income up to $184,500 |
| Medicare | 2.9% | All net SE income (no cap) |
| Additional Medicare | 0.9% | SE income above $200,000 single / $250,000 married |
| Total (under wage base) | 15.3% | Net SE income up to $184,500 |
| Total (over wage base) | 2.9% | Net SE income above $184,500 |
How to Calculate Your Self-Employment Tax
The IRS applies SE tax to 92.35% of your net self-employment income — not the full 100%. This adjustment accounts for the fact that employees don't pay FICA on the employer's share. Step by step:
- Net SE income = Gross SE income − business deductions
- SE tax base = Net SE income × 92.35%
- SE tax = SE tax base × 15.3% (on the portion up to $184,500) + 2.9% on any excess
Worked Example: Freelancer Earning $80,000
| Step | Amount |
|---|---|
| Gross freelance income | $80,000 |
| Business expenses | −$12,000 |
| Net self-employment income | $68,000 |
| × 92.35% | $62,798 |
| SE tax (15.3%) | $9,608 |
| Deductible half of SE tax (reduces income tax) | −$4,804 |
The SE Tax Deduction: You Get Half Back
The IRS allows self-employed individuals to deduct half of their SE tax from gross income when calculating income tax. This is an above-the-line deduction — it reduces your AGI without needing to itemize. In the example above, the $4,804 deduction reduces the income subject to income tax, partially offsetting the SE tax burden.
Business Deductions That Reduce SE Tax
Business deductions reduce your net self-employment income — which lowers both income tax AND SE tax. Every dollar of legitimate business expense saves you income tax at your marginal rate plus SE tax at 15.3%. Common deductible expenses include:
- Business mileage (72.5¢/mile in 2026) or actual vehicle expenses
- Home office deduction (must be used exclusively and regularly for business)
- Equipment, software, and business subscriptions
- Health insurance premiums (self-employed health insurance deduction)
- Half of self-employment tax paid
- Retirement contributions to SEP-IRA or Solo 401(k)
- Professional development and education
- Business phone and internet (business-use portion only)
Retirement Accounts: The Most Powerful Tool
A SEP-IRA allows contributions of up to 25% of net SE income, up to $69,000 for 2026. A Solo 401(k) allows an employee contribution of $24,500 plus up to 25% of net SE income as a profit-sharing contribution. These contributions reduce your income tax significantly — though they don't reduce SE tax itself (SE tax is calculated before retirement deductions).
Quarterly Estimated Payments
Because no employer withholds from your pay, you're expected to pay SE tax and income tax quarterly. The 2026 due dates are April 15, June 16, September 15, and January 15, 2027. A practical rule of thumb: set aside 28–30% of every payment you receive for taxes. This covers SE tax (~15%) plus income tax (~13–15% effective rate) for most self-employed workers in the 22% bracket.
Use our Self-Employment Tax Calculator to estimate your exact SE tax for 2026. For your full tax picture including both SE tax and income tax, try our Income Tax Calculator.
The Complete Self-Employment Tax Checklist for 2026
Managing SE tax well isn't just about knowing the rate — it's about building systems that prevent surprises. Here's a practical checklist covering everything a self-employed person needs to stay current in 2026.
Track Income and Expenses Monthly
SE tax is calculated on net profit, not gross revenue. Every dollar of legitimate business expense reduces your SE taxable income by the full SE tax rate (15.3%) plus your marginal income tax rate. A $1,000 business expense in the 22% bracket saves approximately $302 in combined federal tax. Waiting until April to categorize expenses means missed deductions and inflated tax bills. Simple tracking options: a dedicated business bank account and credit card, a spreadsheet updated monthly, or accounting software like Wave (free) or QuickBooks Self-Employed.
Set Aside Tax Each Time You're Paid
The standard guidance is to set aside 25–30% of every client payment for federal taxes. For most self-employed people in the 22% bracket, the combined rate (15.3% SE tax plus income tax on net profit) lands close to that range. Transfer this to a separate savings account immediately — don't leave it in the operating account where it might get spent before quarterly deadlines.
2026 Quarterly Payment Deadlines
- Q1 (January 1 – March 31): Due April 15, 2026
- Q2 (April 1 – May 31): Due June 16, 2026
- Q3 (June 1 – August 31): Due September 15, 2026
- Q4 (September 1 – December 31): Due January 15, 2027
Payments are made using IRS Direct Pay (free) at IRS.gov or by mailing Form 1040-ES. For safe harbor, pay the lesser of 90% of this year's expected tax or 100% of last year's total tax (110% if prior-year AGI exceeded $150,000).
Key Forms You'll File
- Schedule C: Reports business profit or loss (attached to Form 1040)
- Schedule SE: Calculates SE tax based on Schedule C net profit
- Form 1040-ES: Used to make and track quarterly estimated payments
- Form 1099-NEC: Received from clients who paid you $600 or more — verify these match your income records
Use our SE tax calculator to estimate your quarterly payment based on current-year income, and our estimated tax guide for step-by-step payment instructions and deadline details.