Washington State Taxes for H-1B Visa Holders: Capital Gains Tax Guide
Washington has no state income tax on wages, making it a major draw for H-1B holders at Amazon, Microsoft, Google, and other Seattle-area tech companies. However, since 2022 Washington imposes a 7% excise tax on long-term capital gains exceeding $270,000 per year, with an additional 2.9% surtax on gains above $1,000,000. For H-1B holders with large RSU positions, this capital gains tax can generate a significant state tax bill despite the "no income tax" label.
Washington's capital gains tax specifically impacts H-1B tech workers with RSUs
- If you hold RSU shares for more than one year after vesting and sell for a gain, the long-term capital gain portion above $270,000 is subject to the 7% Washington excise tax (plus 2.9% surtax above $1M).
- Most H-1B holders who use the "vest and sell" strategy (selling RSUs immediately at vest) are unaffected because those gains are classified as short-term and are exempt from the WA CGT.
- The $270,000 threshold is per individual, not per couple — a married couple filing jointly still gets only one $270,000 deduction.
No Income Tax on Wages
Washington does not tax W-2 wages, salary, bonuses, 1099 contract income, interest, dividends, or retirement distributions. Unlike California (13.3%) or New York (10.9% + NYC), your take-home pay in Washington is only reduced by federal taxes and FICA. This makes Washington one of the highest-take-home-pay states for H-1B holders.
Take-Home Comparison: $200K W-2 Salary (Single)
| State | State Tax on Wages | Annual Savings vs. CA |
|---|---|---|
| Washington | $0 | ~$14,000 |
| California | ~$14,000 | — |
| New York (NYC) | ~$16,000 | -$2,000 |
Washington Capital Gains Tax (WA CGT)
Enacted in 2021 and upheld by the Washington Supreme Court in March 2023, the WA capital gains tax is classified as an "excise tax" on the privilege of selling capital assets. Despite this legal classification, it functions like a state capital gains tax.
Rates and Thresholds
| Long-Term Capital Gains | WA Tax Rate |
|---|---|
| First $270,000 | 0% (standard deduction) |
| $270,001 – $1,000,000 | 7% |
| Over $1,000,000 (above threshold) | 9.9% (7% + 2.9% surtax per ESSB 5813) |
What Counts and What Does Not
Only net long-term capital gains (assets held >1 year) count toward the threshold. The following are specifically exempt:
- Short-term capital gains (assets held 1 year or less) — this is why vest-and-sell RSU strategies are unaffected
- Real estate gains from the sale of real property
- Retirement account gains (401(k), IRA, Roth IRA distributions)
- Small business gains from family-owned businesses held >5 years
- Livestock, timber, and agricultural land
Impact on H-1B Holders with RSUs
The practical impact of the WA CGT depends entirely on your RSU strategy:
Scenario 1: Vest-and-Sell (Most H-1B Holders)
You sell RSUs immediately when they vest. The gain (difference between sale price and vest-date FMV) is minimal and classified as short-term. WA CGT does not apply.
The ordinary income at vest (included in your W-2) is not a capital gain and is never subject to WA CGT.
Scenario 2: Hold-and-Sell (Concentrated Position)
You hold RSU shares for >1 year after vest and sell when the stock price has appreciated significantly. Example:
- RSU vest FMV: $150/share, 2,000 shares = $300,000 W-2 income
- Sale price 18 months later: $220/share
- Long-term capital gain: ($220 - $150) x 2,000 = $140,000
- WA CGT: $0 (below $270,000 threshold)
Scenario 3: Large Concentrated Sale
You accumulate shares over several years and sell a large block:
- Total long-term capital gain on sale: $500,000
- WA standard deduction: $270,000
- Taxable gain: $230,000
- WA CGT: 7% x $230,000 = $16,100
This is in addition to federal long-term capital gains tax (15% or 20%) and the 3.8% NIIT if applicable. Total tax on the $230,000 above-threshold gain: ~$16,100 (WA) + ~$34,500 (federal 15%) + ~$8,740 (NIIT) = ~$59,340.
ESPP and the WA Capital Gains Tax
ESPP sales have two income components:
- Ordinary income (compensation element): The discount your employer provided on the ESPP purchase. This is always treated as ordinary income regardless of holding period and is not subject to WA CGT.
- Additional capital gain: Any appreciation above the FMV at the purchase date. If held for >1 year, this is a long-term capital gain that counts toward the $270,000 WA CGT threshold. For most H-1B ESPP participants, this additional gain per year is modest and unlikely to trigger WA CGT by itself.
Filing the WA Capital Gains Tax Return
Washington does not have a general state income tax return. The capital gains tax has its own separate return:
- Where: Filed electronically through the Washington Department of Revenue (DOR) My DOR portal at
dor.wa.gov. - When: Due April 15 (same as federal). Extensions are available.
- Estimated payments: Quarterly estimated payments are required if you expect to owe more than $1,000 in WA CGT. Due dates align with federal quarterly estimated tax dates.
- What to report: All long-term capital gain transactions, similar to federal Schedule D. The return calculates net long-term gains, applies the $270,000 deduction, and computes tax owed.
Other Washington Taxes
Beyond the capital gains tax, H-1B holders in Washington should be aware of:
- Sales tax: Washington has one of the highest sales tax rates in the country at 6.5% state + up to 4% local, reaching 10.25% in Seattle. There is no exemption for groceries (unprepared food is exempt, but prepared food is taxed).
- Property tax: Washington property tax rates average ~1.0% of assessed value — significantly lower than Texas (1.6%–2.2%) but higher than California's effective rates under Prop 13.
- B&O tax: The Business and Occupation (B&O) tax applies to businesses operating in Washington. This is a gross receipts tax (not a net income tax) at rates of 0.138%–1.5% depending on the business classification. This may affect H-4 EAD spouses running businesses in Washington.
- WA Cares Fund: A long-term care insurance program funded by a 0.58% payroll tax on employees. H-1B holders may be able to opt out if they have private long-term care insurance purchased before November 1, 2021. Check eligibility carefully.
Key Takeaways for H-1B Holders in Washington
- Washington has no income tax on wages, salary, bonuses, interest, dividends, or retirement distributions.
- The 7% capital gains tax applies only to net long-term gains above $270,000/year, with a 9.9% rate above $1M (ESSB 5813 surtax).
- Vest-and-sell RSU strategies produce short-term gains that are exempt from WA CGT. Only held RSU shares sold after >1 year count.
- The $270,000 standard deduction is per individual, not per couple on MFJ returns.
- Real estate gains, retirement account gains, and short-term gains are all exempt from the WA capital gains tax.
- The WA Capital Gains Tax Return is filed separately through the WA DOR My DOR portal by April 15.
- Seattle's combined sales tax reaches 10.25% — among the highest in the nation.
For a broader overview of state taxes, see the State Taxes for H-1B Holders overview. Compare Washington to Texas in the Texas Tax Guide. For RSU-specific tax guidance, see Schedule D and Capital Gains.
Frequently Asked Questions
Skip the complexity. We handle all of this for you.
H1B TaxFile supports every form in this guide — FATCA, PFIC, FTC, RSU basis correction, and 22 more H-1B-specific features. Flat price, no surprises.
H1B TaxFile Team
Written by the H1B TaxFile editorial team — tax professionals and software engineers who specialize in U.S. federal tax filing for H-1B visa holders, F-1 students, and nonresident aliens.
Reviewed by a licensed CPA with international tax experience.
Disclaimer: This guide is for educational purposes only and does not constitute tax or legal advice. Tax laws are complex and change frequently. Consult a qualified tax professional for advice specific to your situation.