Self-Employment (1099) Quarterly Tax Calculator
🇺🇸 US-specific: 2026 self-employment tax rates (Schedule SE method) and federal income tax brackets. Federal only — see note below.
Enter a non-negative profit and W-2 income.
This covers federal self-employment tax and federal income tax only — it doesn't include state income tax, which varies too much by state to estimate accurately here. Half of your self-employment tax is deducted from taxable income automatically, as the IRS allows. Quarterly due dates shift to the next business day if they fall on a weekend or federal holiday.
Free 1099 quarterly tax calculator combining real 2026 self-employment tax (Social Security + Medicare on 92.35% of net profit) with federal income tax — no app download, no signup, and shows the exact dollar amount due at each of the four IRS quarterly deadlines.
How it works
- Enter your expected net self-employment profit, any W-2 income, and filing status
- See self-employment tax and federal income tax broken out separately
- Get the exact amount due at each of the four 2026 quarterly deadlines
Frequently asked questions
What counts as self-employment tax?
15.3% total — 12.4% Social Security (on 92.35% of net profit, up to the 2026 wage base of $184,500 combined with any W-2 wages) and 2.9% Medicare (uncapped, plus 0.9% more above $200,000 single / $250,000 married). Half of this is deductible from your income tax.
Does this include state tax?
No — this covers federal self-employment tax and federal income tax only. State income tax rules and rates vary too much by state to estimate accurately here, so budget separately for your state's rate if it has one.
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Update history
- 2026-09-08 Launched: 1099 quarterly tax calculator combining real self-employment tax (Schedule SE method) with federal income tax, showing the exact amount due at each 2026 IRS quarterly deadline. No signup, no app push, unlike several competitor calculators.