Washington State Income Tax Overview
Washington State has no income tax. Note: Washington has a 7% capital gains tax on gains over $250,000, but this does not apply to 1099 self-employment income. This means as a freelancer or 1099 contractor living in Washington, your state tax burden on self-employment income is zero. However, the federal self-employment tax (15.3%) and federal income tax brackets (10%–37%) still apply in full, regardless of your state of residence.
Gig Economy in Washington
Seattle is home to Amazon and a massive freelance tech economy, plus Uber, DoorDash, and Instacart. Washington State's zero income tax is a major attraction for high-earning tech freelancers. Federal self-employment and income taxes fully apply. Washington also has a Long-Term Services and Supports (LTSS) payroll tax of 0.58%, but self-employed workers can opt out.
Quarterly Estimated Tax Payments for Washington Freelancers
Unlike W-2 employees whose employers withhold taxes from each paycheck, 1099 gig workers in Washingtonmust calculate and pay their own taxes quarterly. The IRS requires quarterly estimated payments usingForm 1040-ES if you expect to owe more than $1,000 in federal taxes for the year. The four payment deadlines for 2026 are:
- Q1: April 15, 2026 (Jan–Mar income)
- Q2: June 16, 2026 (Apr–May income)
- Q3: September 15, 2026 (Jun–Aug income)
- Q4: January 15, 2027 (Sep–Dec income)
Key Deductions for Washington Gig Workers
Regardless of your state, federal deductions apply to all 1099 workers. The most impactful deductions include:
- Self-employment tax deduction (50% of SE tax reduces your AGI)
- Home office deduction (dedicated workspace used exclusively for business)
- Vehicle mileage (for drivers, delivery workers, and in-person service providers)
- Business phone and internet (percentage used for work)
- Qualified Business Income (QBI) deduction — up to 20% of net business income
- Health insurance premiums (if self-employed with no employer coverage)
- Retirement contributions (SEP-IRA, Solo 401k)