Washington Self-Employment Tax Calculator
Washington has no income tax on earnings (it does levy a separate capital-gains tax that doesn't touch ordinary self-employment income). That makes your tax picture simpler than most — you still owe federal income tax and self-employment tax, and this tool sizes both plus your four quarterly payments.
Your business profit and how you file. No sign-up, no documents.
Federal + self-employment tax, your effective rate, and four payment amounts.
Add the four due dates to your calendar and pay directly at IRS.gov.
Your 2026 estimate
Answer a few questions — your numbers update live and never leave this page.
Great news — this state has no personal income tax, so your only bill is the federal total.
No state income tax — the federal total above is your whole bill. No separate state return or state estimated payments.
Your 4 payments
$16,647 for the year- Q1 · Jan – Mar$4,162Due April 15, 2026
- Q2 · Apr – May$4,162Due June 15, 2026
- Q3 · Jun – Aug$4,162Due September 15, 2026
- Q4 · Sep – Dec$4,161Due January 15, 2027
You could save real money with an S-Corp
After ~$1,200–$2,500 in payroll and filing costs, that's about $1,556–$2,856 net — likely worth electing, as long as the salary stays reasonable.
Saved scenarios
Save your current numbers to compare scenarios side by side — sole prop vs S-Corp, a raise, a bigger retirement contribution. Stored only in this browser.
Never miss a tax deadline again
Your numbers have real money on the line
At your income, an S-Corp election, a retirement-plan choice, or one missed deduction can swing your bill by thousands. A flat-fee review catches it — no retainer, no sales pitch.
- ✓Whether an S-Corp actually nets out for you
- ✓Deductions you're leaving on the table
- ✓A retirement plan that cuts this year's tax
Recommended: Shashank Beri, CPA · independent, no obligation
What freelancers actually owe
Does Washington tax self-employment income?
No. Washington has no income tax on earnings (it does levy a separate capital-gains tax that doesn't touch ordinary self-employment income). Washington is one of nine states that don't tax self-employment or wage income, so there's no state return or state estimated payments to worry about for your business income.
What you do still owe is entirely federal: income tax and self-employment tax. The estimate above is your full 2026 picture for Washington.
What you still owe as a Washington freelancer
Self-employment tax is 15.3% on 92.35% of your net profit — Social Security (12.4%, up to the $184,500 wage base) and Medicare (2.9%). It's federal and applies no matter which state you're in.
On top of that you owe federal income tax after the $16,100 (single) or $32,200 (married filing jointly) standard deduction and the 20% QBI deduction. Because Washington adds nothing, your effective rate is lower here than in a state like California or New York at the same income.
Your 2026 federal quarterly due dates
Estimated taxes are due four times a year. In Washington these are your only estimated payments — all federal, all to the IRS.
Would an S-Corp help in Washington?
Possibly — an S-Corp can cut the 15.3% self-employment tax on the share of profit you take as distributions instead of salary. With no state income tax in Washington, the math is purely federal. Use the comparison above to see whether the saving beats the $1,200–$2,500 yearly cost of running payroll and a separate return.
What this estimate covers
This is a 2026 planning estimate for federal income tax and self-employment tax, with the standard deduction and a simplified QBI deduction. Washington adds no state income tax on this income. It isn't tax advice and doesn't cover federal credits, the net investment income tax, or the full QBI limitation for high earners — confirm anything material with a CPA.
Common questions
No. Washington has no income tax on earnings (it does levy a separate capital-gains tax that doesn't touch ordinary self-employment income). You won't file a state income-tax return or make state estimated payments on your self-employment income.
Read the guides
How much should I set aside for taxes as a freelancer?
The rule of thumb is 25–35% of net profit — here's how to find your exact number for 2026.
Read →Freelancer taxes1099 vs W-2 taxes: why freelancers pay more
Same pay, bigger tax bill. Why 1099 income costs more than a W-2 — and the deductions that close the gap.
Read →DeductionsSelf-employed tax deductions that actually cut your bill
Home office, health insurance, retirement, QBI, half your SE tax — the write-offs that actually lower your bill.
Read →