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Washington Capital Gains Tax Calculator

Washington imposes a capital gains excise tax on high-value gains. Combined top rate: 33.7%.

⚠ Washington's 2026 bracket thresholds have not yet been officially published. Figures shown are based on 2025 data or estimated inflation adjustments. Results will be updated when official numbers are released.

Step 1: Your income before the capital gain

Your existing taxable income determines which federal capital gains bracket applies (0%, 15%, or 20%).

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Don't know your taxable income? Calculate it from gross income
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Standard deduction (single): $16,100

Or use the Washington Income Tax Calculator for a detailed breakdown.

⚠️ This calculator provides estimates for educational purposes only. It is not financial, tax, or legal advice. Your actual results may vary.

Washington Capital Gains Rules

  • 7% excise tax on long-term gains above $286K (est.)

    WA imposes 7% on LTCG above standard deduction ($286K est. 2026, based on 2025 official of $278K — 2026 figure not yet published by WA DOR). 9.9% on gains over $1M. Real estate, retirement accounts exempt.

Frequently Asked Questions

Does Washington tax capital gains?
Yes. Washington imposes a 7% excise tax on long-term capital gains above the standard deduction threshold (~$286,000 for 2026), plus 9.9% on gains over $1 million. Real estate and retirement accounts are exempt.
Is Washington's capital gains tax an income tax?
No. It's legally classified as an excise tax, not an income tax. The Washington Supreme Court upheld this classification in 2023. It applies only to long-term gains above the threshold.
What is exempt from Washington's capital gains tax?
Real estate sales, retirement account distributions, livestock/timber, and depreciable business assets are all exempt from the excise tax.
What is the combined capital gains tax rate in Washington?
For gains above the threshold: up to 33.7% (federal 20% + NIIT 3.8% + state 7%). For gains over $1M: up to 33.7%.

Related Resources

Washington Capital Gains Tax Information

Official Washington tax information relevant to capital gains, including rates, forms, and filing resources.

Washington Income Tax Calculator

Calculate your Washington state and federal income tax

All State Capital Gains Calculators

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