Enter your annual freelance income and business deductions below. The calculator shows your 2026 SE tax bill, the deduction that reduces your income tax, and exactly how much to pay per quarter — no signup, no download, no waiting.
Results update as you type — 2026 rates
Uses 2026 Social Security wage base ($176,100 per SSA.gov) and 15.3% SE tax rate (12.4% SS + 2.9% Medicare). Amounts rounded to nearest dollar. Freelancers earning above ~$200,000 net may owe an additional 0.9% Medicare surcharge not reflected here. This calculator covers SE tax only — it does not estimate income tax, QBI deduction, or state taxes. Full calculation is in the Freelancer Finance Pro spreadsheet.
Self-employment tax exists because freelancers pay both the employee and employer sides of FICA. A W-2 employee pays 7.65% while their employer pays the other 7.65%. Freelancers pay both — 15.3% — on 92.35% of net self-employment income.
The 92.35% multiplier is the IRS's way of accounting for the employer-side deduction before calculating the tax. This is why you multiply net SE income by 0.9235 before applying the 15.3% rate.
| Component | Rate | Applies To | 2026 Wage Base |
|---|---|---|---|
| Social Security | 12.4% | Net SE income × 92.35% | $176,100 ceiling |
| Medicare | 2.9% | Net SE income × 92.35% | No ceiling |
| Additional Medicare | 0.9% | SE income above $200K (single) | No ceiling |
| Total (most freelancers) | 15.3% | Net SE income × 92.35% | Below $176,100 |
The SE deduction works in your favor: Because you pay both sides of FICA, the IRS lets you deduct 50% of your SE tax above the line on Form 1040, Schedule 1. This reduces your adjusted gross income — and your income tax — without requiring itemization. At the 22% bracket, every $1 of SE tax generates about $0.11 in income tax savings.
$40,000 income / $2,000 deductions / 12% bracket
$75,000 income / $5,000 deductions / 22% bracket
$150,000 income / $15,000 deductions / 32% bracket
The IRS requires quarterly estimated tax payments if you expect to owe at least $1,000 for the year after withholding. For freelancers with no employer withholding, this threshold is nearly always crossed.
| Quarter | Income Period | Due Date | Status |
|---|---|---|---|
| Q1 | January – March | April 15, 2026 | Past |
| Q2 | April – May (2 months) | June 15, 2026 | Past |
| Q3 | June – August | September 15, 2026 | Next deadline |
| Q4 | September – December | January 15, 2027 | Upcoming |
Missed Q1 or Q2? Missing a quarterly payment does not compound — the IRS assesses a separate underpayment penalty for each missed quarter (currently approximately 7–8% annualized on the underpaid amount). Make Q3 your reset point. Paying Q3 and Q4 in full limits total penalty exposure.
This calculator gives you the SE tax number in 10 seconds. What it cannot do:
The Freelancer Finance Pro spreadsheet includes: SE tax estimator with full safe harbor calculator, QBI deduction tracker, client P&L (hourly rate by client), quarterly projected payments by quarter, and mileage log. Open in Excel or Google Sheets. Instant download.
Start with Lite — $9 See Finance Pro — $29Do I have to pay self-employment tax if I freelance part-time?
Yes — the IRS does not distinguish between full-time and part-time freelance income for SE tax purposes. If your net self-employment income (after business deductions) exceeds $400 in a year, you owe SE tax at 15.3% on 92.35% of that amount. There is no minimum hours threshold or employer exemption.
What is the SE tax deduction and how does it work?
When you pay SE tax, you can deduct 50% of the SE tax amount as an above-the-line deduction on Schedule 1 of your 1040. This reduces your adjusted gross income — and therefore your income tax — without requiring you to itemize. If you owe $9,891 in SE tax, you can deduct $4,945 from your AGI, saving roughly $1,088 in federal income tax at the 22% bracket.
When are quarterly estimated taxes due for freelancers in 2026?
The 2026 deadlines are Q1 April 15, Q2 June 15, Q3 September 15, and Q4 January 15, 2027. Note that Q2 covers only April and May income (two months), while Q4 covers three months. Missing a quarterly payment triggers an underpayment penalty of approximately 7–8% annualized on the shortfall.
What counts as a business deduction for freelancers?
Common Schedule C deductions include: home office (simplified $5/sq ft up to 300 sq ft), business-use vehicle (standard mileage rate — verify current rate at irs.gov), software subscriptions, professional services (accountant, attorney), business insurance, and equipment. Health insurance premiums and retirement contributions (SEP-IRA, Solo 401k) are deducted above-the-line on Schedule 1, not on Schedule C — but both reduce net self-employment income for SE tax purposes through the SE deduction interaction.