7.0% on gains over $270K / 9.0% on gains over $1M (2026)
PTET Election Available
No
✗ Not Available
Bonus Depreciation Conformity
Conforms
✓ Full Federal Conformity
BUSINESS & CORPORATE TAX NOTE
Washington has no corporate income tax. A Business & Occupation (B&O) Tax applies to gross receipts (0.471%–1.5% depending on industry). Capital gains tax enacted 2022, graduated rate added 2026.
Key Planning Insight:
Washington has no income tax on wages but enacted a capital gains tax in 2022 — now with a graduated structure: 7% on gains $270K–$1M, 9% on gains over $1M (retroactive to 2025). This is a major planning consideration for business sellers and investors.
Washington-Specific Tax Strategies
These strategies are especially powerful or unique in Washington. Click any strategy to learn more.
Washington enacted a 7% capital gains tax on gains exceeding $270,000 from the sale of stocks, bonds, and other capital assets (real estate is exempt). Planning strategies include timing sales, utilizing exemptions, charitable giving, and Opportunity Zone investments to minimize exposure.
Washington's Business & Occupation (B&O) Tax is a gross receipts tax ranging from 0.13% to 3.3% depending on business classification. Unlike income taxes, B&O applies to gross revenue — not profit. Planning strategies include classification optimization, multiple activities tax credit, and small business B&O credit.
An installment sale (IRC §453) allows you to spread capital gains recognition over multiple tax years when selling a business or investment property. Instead of paying all capital gains tax in the year of sale, you recognize gain proportionally as payments are received — potentially keeping you in a lower tax bracket each year.
Qualified Opportunity Zone (QOZ) investments allow you to defer and reduce capital gains taxes by investing in designated economically distressed areas. Gains invested in a Qualified Opportunity Fund (QOF) are deferred until 2026, and if held 10+ years, any appreciation on the QOZ investment is tax-free.
Bonus depreciation allows you to deduct a large percentage of qualifying business assets (equipment, vehicles, real estate improvements) in the year of purchase rather than depreciating over time. This is one of the most powerful accelerated deductions available to business owners and real estate investors.
Choosing the right business structure is the single biggest tax decision you'll make. Here's what Washington LLC and S-Corp owners need to know.
Washington LLC Formation
Washington LLCs are taxed as pass-through entities by default. All profits flow to your personal return and are taxed at No income tax (wages). Electing S-Corp status can significantly reduce your self-employment tax burden.
LLC vs. S-Corp in Washington
Washington does not currently offer a PTET election. LLC owners should focus on S-Corp election to reduce self-employment taxes, and maximize federal deductions like Section 179, home office, and retirement contributions.
Top LLC Write-Offs in Washington
Washington LLC owners can deduct: business expenses (IRC §162), home office (IRC §280A), vehicle mileage (IRC §179), Section 179 equipment expensing, bonus depreciation (100% federal conformity), retirement contributions (Solo 401k or SEP-IRA), health insurance premiums, and business meals.
Washington Business Tax Note
Washington has no corporate income tax. A Business & Occupation (B&O) Tax applies to gross receipts (0.471%–1.5% depending on industry). Capital gains tax enacted 2022, graduated rate added 2026.
These federal strategies apply to Washington residents and business owners. Click any strategy to see full details, savings estimates, and eligibility requirements.
Common questions about Washington LLC taxes, S-Corp elections, and business write-offs — answered by Uncle Kam's tax advisors.
Washington's top marginal income tax rate is No income tax (wages). Business owners and self-employed individuals pay this rate on their net business income. Strategies like the S-Corp election, pass-through entity tax (PTET) election, and maximizing deductions can significantly reduce your effective Washington tax rate.
The most powerful write-offs for Washington LLC owners include: the S-Corp election to reduce self-employment taxes, Section 179 and bonus depreciation for equipment and real estate, the home office deduction, vehicle and mileage deductions, Solo 401(k) or SEP-IRA contributions, and business meals and travel. Washington-specific strategies like the PTET election and state-specific credits can add further savings.
Washington does not currently offer a pass-through entity tax (PTET) election. However, there are still powerful federal strategies available to Washington business owners to reduce their overall tax burden. Book a free strategy call to explore your options.
Yes. Washington conforms to federal bonus depreciation rules, meaning you can deduct a large percentage of qualifying business assets in the year of purchase. This is especially powerful for real estate investors using cost segregation studies and for businesses purchasing equipment or vehicles.
For most Washington business owners earning over $60,000 in net profit, electing S-Corp status can save $5,000–$20,000 per year in self-employment taxes. The right choice depends on your income level, Washington's franchise or minimum tax requirements, and your business structure. Uncle Kam's advisors specialize in Washington entity structuring — book a free call to get a personalized recommendation.
Self-employed individuals in Washington can reduce state taxes by: maximizing business deductions (home office, vehicle, equipment), contributing to a Solo 401(k) or SEP-IRA, electing S-Corp status to reduce self-employment tax, using the PTET election if available, and timing income and deductions strategically. A Washington-based tax strategy session with Uncle Kam can identify your biggest opportunities.
Real estate investors in Washington benefit most from cost segregation studies (accelerating depreciation on commercial and rental properties), the 1031 exchange (deferring capital gains on property sales), bonus depreciation (if Washington conforms), the short-term rental loophole, and real estate professional status (REPS). Washington's specific tax rules can significantly impact your real estate ROI — get a free strategy review from Uncle Kam.
