2026 Self-Employment Tax Calculator
Estimate your self-employment tax, federal income tax, state tax, and what to set aside each quarter. Updated for 2026 rates.
2026 quarterly estimated tax due dates
| Quarter | Income period | Payment due |
|---|---|---|
| Q1 2026 | Jan 1 – Mar 31 | April 15, 2026 |
| Q2 2026 | Apr 1 – May 31 | June 15, 2026 |
| Q3 2026 | Jun 1 – Aug 31 | September 15, 2026 |
| Q4 2026 | Sep 1 – Dec 31 | January 15, 2027 |
See the full breakdown on the 2026 quarterly tax due dates page.
Frequently asked
What is self-employment tax?+
Self-employment tax covers Social Security and Medicare for people who work for themselves. It's 15.3% — 12.4% Social Security on earnings up to the 2026 wage base of $184,500, plus 2.9% Medicare with no cap — applied to 92.35% of your net business profit.
How much should I set aside for taxes as a freelancer?+
A common rule of thumb is 25–30% of net freelance income, but the right number depends on your total income, filing status, and state. This calculator gives you a specific percentage instead of a guess.
When are 2026 quarterly taxes due?+
April 15, 2026; June 15, 2026; September 15, 2026; and January 15, 2027. If a date lands on a weekend or holiday, it shifts to the next business day.
Is this calculator tax advice?+
No. It's a planning estimate using 2026 figures. It is not a filed return and not a substitute for a CPA or IRS Form 1040-ES. Confirm anything important with a tax professional.
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