Washington State Income Tax Calculator
Calculate your Washington state income tax liability for 2026
About Washington State Income Tax
No state income tax
Tax Brackets & Rates (2026)
| Income Range | Tax Rate |
|---|---|
| Over $0 | 0% |
Deductions & Exemptions
- No standard deductions or exemptions apply
How Washington State Income Tax Works
Washington does not impose a state income tax on wages and salaries. Residents only pay federal income tax.
Tips for Washington Taxpayers
- File your state return by the same deadline as federal taxes (typically April 15)
- Make estimated quarterly payments if you're self-employed or have significant investment income
- Keep detailed records of all income, deductions, and tax payments