RCW 82.87

Washington Tax Calculators

Washington's standalone 7% long-term capital gains tax — separate from any state income tax (Washington has none). $270K standard deduction per individual, real-estate and retirement-account exemptions.

Anchored to: RCW Chapter 82.87

1 calculator live. Reviewed against current statute and regulation. Last updated 2026-05-15.

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RCW Chapter 82.87 (Washington Long-Term Capital Gains Tax)

Washington State Capital Gains Tax Calculator

Estimate Washington's 7% long-term capital gains tax under RCW Chapter 82.87 — the stand-alone state excise enacted by SB 5096 in 2021 and upheld by the Washington Supreme Court in Quinn v. State, 200 Wn.2d 1 (2023). Washington has no state personal income tax (Article VII of the Washington Constitution); this 7% levy sits alone on long-term capital gains in excess of a $270,000-per-individual standard deduction (RCW 82.87.060, inflation-adjusted). Surfaces the broad RCW 82.87.050 exemptions (real estate, retirement accounts, qualified family-owned small business, agricultural assets meeting the 51% farming-income test, timber and timberland under the Forest Excise Tax of Chapter 84.33, commercial fishing privileges), the $100,000 qualified charitable deduction for contributions to Washington educational institutions (RCW 82.87.070), and the April 15 Form 41 0050 filing deadline.

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Washington State Capital Gains Tax Calculator
Estimate Washington's 7% long-term capital gains tax under RCW Chapter 82.87 — the stand-alone state excise enacted by SB 5096 in 2021 and upheld by the Washington Supreme Court in Quinn v. State, 200 Wn.2d 1 (2023). Washington has no state personal income tax (Article VII of the Washington Constitution); this 7% levy sits alone on long-term capital gains in excess of a $270,000-per-individual standard deduction (RCW 82.87.060, inflation-adjusted). Surfaces the broad RCW 82.87.050 exemptions (real estate, retirement accounts, qualified family-owned small business, agricultural assets meeting the 51% farming-income test, timber and timberland under the Forest Excise Tax of Chapter 84.33, commercial fishing privileges), the $100,000 qualified charitable deduction for contributions to Washington educational institutions (RCW 82.87.070), and the April 15 Form 41 0050 filing deadline.

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Washington State Capital Gains Tax Calculator
Estimate Washington's 7% long-term capital gains tax under RCW Chapter 82.87 — the stand-alone state excise enacted by SB 5096 in 2021 and upheld by the Washington Supreme Court in Quinn v. State, 200 Wn.2d 1 (2023). Washington has no state personal income tax (Article VII of the Washington Constitution); this 7% levy sits alone on long-term capital gains in excess of a $270,000-per-individual standard deduction (RCW 82.87.060, inflation-adjusted). Surfaces the broad RCW 82.87.050 exemptions (real estate, retirement accounts, qualified family-owned small business, agricultural assets meeting the 51% farming-income test, timber and timberland under the Forest Excise Tax of Chapter 84.33, commercial fishing privileges), the $100,000 qualified charitable deduction for contributions to Washington educational institutions (RCW 82.87.070), and the April 15 Form 41 0050 filing deadline.

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Every YMYL calculator is reviewed quarterly and after every legislative session in the jurisdiction it covers. Citations are link-validated monthly against the relevant statute and regulation websites. The methodology page documents the discipline.

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