Washington has no state income tax. Use the side income tax calculator with Washington tax rates to see your exact after-tax numbers.
Open Side Income Tax Calculator →Side income earned in Washington avoids state income tax entirely, making it one of the best states for gig workers, tutors, and anyone with a side hustle. You still owe federal income tax at your marginal rate and self-employment tax (15.3%) if the side income is from self-employment, but the absence of state tax provides a meaningful advantage. For a $20,000 side hustle, that could mean $500-$2,000 more in your pocket versus a state with income tax. Use this calculator to see your true net on side income in Washington.
Washington is one of nine states with no personal income tax. Residents keep every dollar of earnings from state-level taxation, though the state generates revenue through other means such as sales taxes, property taxes, and in some cases severance taxes on natural resources. Washington does impose a 7% tax on capital gains exceeding $270,000, so high-net-worth investors should factor that in.
The table below shows what you actually keep at five salary levels in Washington, accounting for federal tax, FICA, and zero state income tax.
See how Washington compares to other West states. Each link takes you to the side income tax calculator landing page for that state.
For a comprehensive breakdown of Washington’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Washington take-home pay page.