💼 Side Hustle Tax Calculators Washington

Washington Side Hustle Tax Calculator

Calculate taxes on side hustle income in Washington. See self-employment tax, federal & state taxes, and quarterly payment estimates for gig workers.

Free — No Sign-up Verified Data Editorially Reviewed Updated Feb 2026

Washington Quick Facts

None Income Tax Rate

1.03% Property Tax Rate

$82,228 Median Income

110.7 Cost of Living

How This Calculator Works

Calculation methodology and assumptions

Side hustle tax calculation for Washington. Side income over $400 triggers self-employment tax (15.3% on 92.35% of net earnings), covering Social Security (12.4%) and Medicare (2.9%). Federal income tax applies at marginal rates based on combined W-2 + side income. Washington has no state income tax. Deductible expenses reduce both income tax and SE tax bases.

Key State Information

Washington side hustle tax facts: No state income tax | Cost of living index 110.7 | Median income $82,228.

Standard financial formulas Pre-filled with real state data Estimates only — not financial advice

Data Source

IRS, Tax Foundation

View Original Source | Verified 2024-12-01 | Updated annually

Frequently Asked Questions

How much tax do I pay on side hustle income in Washington?

Side hustle income is subject to self-employment tax (15.3%) plus federal income tax at your marginal rate (typically 22-32% for most side hustlers). Washington has no state income tax, saving most side hustlers $500-$3,000/year vs. high-tax states.

Do I need to pay quarterly taxes on side hustle income in Washington?

If you expect to owe $1,000+ in taxes on your side income, the IRS requires quarterly estimated payments (due April 15, June 15, Sep 15, Jan 15). Since Washington has no income tax, you only need federal quarterly payments.