Tax Planning for Washington
Tech Professionals & Investors.
Washington has no traditional income tax, but the new capital gains tax on high earners adds complexity. Between RSU vesting, stock option exercises, and real estate investments, Washington residents need a CPA who understands the full federal picture.
The Washington Advantage
Washington state has no personal income tax on wages, business income, or most investment income. For the state's large population of tech workers (at Amazon, Microsoft, Google, Meta, and hundreds of startups), this means no state tax bite on your salary or RSU vesting. But your federal tax bill can be enormous without the right strategy.
Washington's capital gains tax (7% on long-term gains above an inflation-indexed standard deduction of $278,000 for 2025, and 9.9% on taxable gains over $1 million starting with tax year 2025) adds a layer of complexity for high earners selling stock or business interests (real estate is excluded). This requires careful timing of stock sales, strategic use of Qualified Small Business Stock (QSBS) exclusions, and coordination between state and federal capital gains planning.
Seattle and the Puget Sound region also have one of the strongest real estate markets in the country. We serve Washington investors who use cost segregation, 1031 exchanges, and the STR loophole to build tax-efficient rental portfolios, all while navigating the state's unique tax landscape.
Washington Tax Quick Facts
State Income Tax
None*
Avg. Property Tax
0.87%
Sales Tax
6.50%+
B&O Tax
0.471 to 2.1%
Notable Washington Tax Rules
- No personal income tax on wages, self-employment, or most investment income
- Capital gains tax of 7% on long-term gains above an indexed standard deduction ($278,000 for 2025), rising to 9.9% on taxable gains over $1 million starting tax year 2025 (real estate excluded, but stock sales are subject)
- Business & Occupation (B&O) tax is a gross receipts tax, not a net income tax. Common rates run from 0.471% (retailing) to 1.5%, 1.75%, or 2.1% for service businesses, tiered by prior-year income since October 1, 2025
- No corporate income tax, but the B&O tax applies to all business activities in Washington
- Community property state, which affects how RSUs, stock options, and investment income are reported on federal returns for married couples
Washington vs. National Average
| Category | Washington | National Avg. |
|---|---|---|
| State Income Tax | 0%* | 4.6% |
| Capital Gains Tax | 7% to 9.9% (>$278K) | Varies |
| Avg. Property Tax | 0.87% | 1.07% |
| State Sales Tax | 6.50% | 5.09% |
| B&O Tax (Service) | 1.5% to 2.1% | N/A |
* Washington taxes long-term capital gains at 7% above an inflation-indexed standard deduction ($278,000 for 2025), plus an additional 2.9% (9.9% total) on taxable gains over $1 million starting tax year 2025. Real estate is excluded.
Key Strategies for Washington Residents
QSBS (Section 1202)
Exclude startup stock gains from federal tax, up to the greater of $15M or 10x basis for stock issued after July 4, 2025 ($10M for earlier stock), with 50%, 75%, or 100% exclusions at 3, 4, or 5+ years.
Learn moreRoth Conversions
No state income tax on retirement income today. From 2028, a conversion that pushes adjusted gross income over $1M could trigger Washington's new 9.9% income tax, so size conversions with that in mind.
Learn moreWho We Serve in Washington
Tech Professionals
RSUs, ISOs, NQSOs, ESPP: Washington's tech industry creates complex federal tax situations. We help Amazon, Microsoft, and startup employees optimize stock compensation timing, manage AMT exposure, and build tax-efficient investment portfolios.
Learn moreReal Estate Investors
Seattle's rental market, Eastside appreciation, and vacation rentals in the San Juan Islands create diverse investment opportunities. We use cost segregation, 1031 exchanges, and the STR loophole to minimize your federal tax on real estate income.
Learn moreBusiness Owners
Washington's B&O tax is a gross receipts tax, not income-based, which changes how you think about entity structure. We optimize your S-Corp election, reasonable compensation, and retirement funding in the context of Washington's unique business tax environment.
Learn morePhysicians
UW Medicine, Swedish Medical, Providence, and Virginia Mason serve a large physician population in the Puget Sound. We help Washington physicians reduce federal taxes through moonlighting S-Corps, retirement plan optimization, and real estate investment strategies.
Learn moreLive in Washington? Let's Reduce Your Federal Tax Bill.
Book a free 30-minute consultation with our team. Tell us what you need, learn how Taxstra can help, and explore whether our services are a good fit. We serve Washington clients 100% remotely, no travel required.
Schedule Your Free CallHow We Work Together
Free Initial Consultation
A 30-minute video call to understand your income and stock comp.
Tax Diagnostic & Plan
We review returns, RSU vesting, and portfolio to build a plan.
Implementation
Entity formation, elections, retirement plans, stock timing.
Year-Round Advisory
Quarterly planning, RSU coordination, year-end optimization.
Illustrative Scenarios
Hypothetical composites, not clients or results. Actual outcomes depend on your facts. Educational, not individualized tax advice.
Amazon Employee: RSU Tax Optimization
A senior engineer at Amazon has $480K of total compensation, $280K of it from RSU vesting. RSUs are taxed as wages when they vest, and the default supplemental withholding on vested shares often falls short of the actual bracket, which shows up as a balance due in April. Planning centers on estimated payments, harvesting losses against later share sales, and giving appreciated shares instead of cash. Washington has no tax on wages, but large gains on shares sold later can fall under the state capital gains excise tax.
Seattle RE Investor: STR Loophole
A Microsoft product manager on a $350K salary buys a vacation rental in Leavenworth. With an average stay of 4.5 days and owner material participation documented in a time log, the property falls outside the passive rental rules, so first-year depreciation from a cost segregation study can offset part of the salary on the federal return. Washington has no income tax to reduce, and it treats short-stay lodging as a retail sale, so bookings carry state and local sales and lodging taxes.
Startup Founder: QSBS + Capital Gains Planning
A Bellevue founder plans to sell C-Corp shares in an exit. If the stock is Qualified Small Business Stock under Section 1202 (original issue, a qualifying active business, the gross asset limit at issuance, and the required holding period), part or all of the federal gain can be excluded, up to the per-issuer cap. Washington's capital gains excise tax is figured on its own return, with its own deductions and a higher tier on very large gains, so the state side of the sale needs a separate analysis.
Resources for Washington Taxpayers
Washington Tax Questions
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Washington has no state income tax. Let's make sure your federal strategy is just as optimized. We serve Washington clients 100% remotely.
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