What Is the Capital Gains Tax Rate in Washington State?

Washington state made history in 2021 by introducing a capital gains tax rate that targets high earners on the sale of long-term assets like stocks, bonds, and business interests. As of 2026, the Washington state capital gains tax stands at 7% on annual gains exceeding $262,000 for individuals. This tax applies only to profits from sales of long-term capital assets and does not include real estate, retirement accounts, or livestock.

This is not a federal tax. It sits on top of whatever federal capital gains liability you already owe. If you’re a Washington resident who flipped stocks, sold a business, or cashed out equity compensation in 2025 or 2026, you need to understand how this state-level tax works, what exemptions exist, and how to structure your transactions to legally reduce exposure.

Quick Answer

Washington state charges a 7% capital gains tax on annual long-term gains over $262,000 (as of 2026). This applies to sales of stocks, bonds, and business interests but excludes real estate, retirement accounts, and certain family-owned businesses. You can reduce your taxable gain through strategies like tax-loss harvesting, installment sales, charitable donations, and asset relocation before the sale.

How Washington’s Capital Gains Tax Works in 2026

Washington’s capital gains tax is structured differently from the federal system. Here’s what you need to know about how it applies to your investment activity.

What Counts as a Taxable Gain

Taxable gains under Washington law include profits from the sale or exchange of:

• Publicly traded stocks and bonds
• Business ownership interests (including LLC and partnership units)
• Tangible personal property used in a trade or business
• Cryptocurrency and digital assets held as investments

If you sold Microsoft stock in 2025 and realized a $300,000 gain, you would owe 7% on the amount above $262,000. That means $38,000 is taxable at the state level, resulting in a $2,660 Washington capital gains tax bill on top of your federal obligation.

What’s Excluded From Washington Capital Gains Tax

Washington law specifically exempts several types of transactions:

• Real estate sales: Your home, rental properties, land, and commercial buildings are not subject to the Washington capital gains tax
• Retirement accounts: Distributions from 401(k), IRA, Roth IRA, and other qualified accounts are exempt
• Qualified family-owned small business sales: Sales meeting specific holding and ownership requirements can be fully exempt
• Livestock and agricultural property: Assets used in farming and ranching are excluded

Interestingly, while Washington taxes your Amazon stock sale, it won’t touch the sale of your Seattle rental property or Spokane vacation home. Real estate investors in Washington face a dramatically different tax profile than equity investors.

How the $262,000 Threshold Works

The Washington capital gains tax only applies to the portion of your annual long-term capital gains that exceeds $262,000. This threshold is indexed for inflation and adjusts each year based on the consumer price index.

If your total long-term capital gains for 2026 are $400,000, the calculation looks like this:

• Total long-term gains: $400,000
• Standard deduction: $262,000
• Taxable amount: $138,000
• Washington tax due (7%): $9,660

This is a true deduction, not a phaseout. If you have $260,000 in gains, you owe zero Washington capital gains tax. If you have $262,001 in gains, you owe 7% on $1. The cliff structure rewards strategic timing.

Who Actually Pays Washington Capital Gains Tax

The Washington capital gains tax is designed to target high-income earners, particularly those who realize large one-time gains from stock sales, business exits, or equity compensation.

Tech Employees Cashing Out RSUs and Stock Options

If you’re an Amazon, Microsoft, or Meta engineer with $500,000 in vested RSUs, you might be facing both federal and state capital gains tax when you sell those shares. The state tax applies only to the appreciation after the shares vest, but that can still be substantial if you hold appreciated stock for years.

Example: You received 1,000 RSUs at a $150 fair market value. They vest, and you hold them for 18 months. You sell at $250 per share. Your long-term capital gain is $100 per share, or $100,000 total. Since this is below the $262,000 threshold, you owe zero Washington capital gains tax. But if you had 3,000 RSUs in the same scenario, your gain would be $300,000, resulting in a $2,660 Washington tax bill.

Business Owners Selling an Interest in a Company

Washington’s capital gains tax applies to the sale of business ownership interests, including LLC units, S Corp stock, partnership interests, and sole proprietorship asset sales. If you sell your Seattle software consulting firm for $2 million and your basis is $500,000, you’re looking at a $1.5 million gain.

Here’s the math:

• Total long-term gain: $1,500,000
• Washington standard deduction: $262,000
• Taxable amount: $1,238,000
• Washington capital gains tax (7%): $86,660

That’s on top of federal capital gains tax of 20% (plus the 3.8% net investment income tax if applicable). Your combined effective rate could approach 31% depending on your income.

However, if your business qualifies as a “qualified family-owned small business” under Washington law, you may be able to exclude the entire gain. To qualify, you must meet strict ownership, employment, and asset requirements detailed in Washington Department of Revenue guidance.

Investors With Concentrated Stock Positions

If you hold a large position in a single stock and decide to diversify by selling $500,000 worth, you’ll trigger Washington capital gains tax on the amount over $262,000. Many investors don’t realize this tax applies until they file their Washington return and discover an unexpected liability.

One strategy: Spread the sale across two tax years. Sell $262,000 in December 2026 and another $262,000 in January 2027. Both sales fall under the annual standard deduction, and you pay zero Washington capital gains tax instead of $16,660.

Strategies to Reduce Washington Capital Gains Tax Liability

Washington’s capital gains tax is young, but tax strategists have already developed several proven methods to reduce or eliminate exposure. Here are the most effective approaches.

Tax-Loss Harvesting at the State Level

Tax-loss harvesting involves selling investments at a loss to offset gains elsewhere in your portfolio. While this is a common federal tax strategy, it works slightly differently for Washington purposes.

Washington allows you to offset capital gains with capital losses in the same tax year. If you have $400,000 in stock gains and $150,000 in losses, your net gain is $250,000, which falls below the $262,000 threshold. Result: Zero Washington capital gains tax.

Pro Tip: Execute loss harvesting before December 31 to ensure losses count in the current tax year. Losses do not carry forward under Washington law, so timing matters.

Charitable Donations of Appreciated Stock

Donating appreciated securities directly to a charity or donor-advised fund allows you to avoid capital gains tax entirely while claiming a federal income tax deduction for the fair market value of the stock.

Example: You hold $300,000 in Amazon stock with a $50,000 basis. Instead of selling and donating cash, you transfer the stock directly to a donor-advised fund. You avoid $17,500 in federal capital gains tax (assuming 20% federal rate) and $2,660 in Washington capital gains tax, while still claiming a $300,000 charitable deduction on your federal return.

This strategy is especially powerful if you were planning to make charitable gifts anyway. You simply redirect the stock instead of cash.

Installment Sales for Business Exits

If you’re selling a business or large stock position, consider structuring the sale as an installment agreement under IRS Section 453. This allows you to recognize the gain over multiple years instead of all at once.

Example: You sell your business for $1.5 million with $500,000 in basis. Instead of a lump sum, you structure the sale as $500,000 per year over three years. Each year, you recognize approximately $333,000 in gain. After the $262,000 deduction, you pay Washington tax on only $71,000 per year instead of $1.238 million all at once. Your three-year Washington tax liability is approximately $14,910 instead of $86,660.

One caution: Installment sales require careful structuring. You must charge adequate interest, secure the note properly, and ensure the buyer is creditworthy. Work with a CPA and attorney to document the arrangement correctly.

Relocation Strategy Before Sale

Washington’s capital gains tax applies only to residents of Washington state. If you establish residency in a state with no capital gains tax (like Nevada, Texas, or Florida) before completing a sale, you can avoid Washington tax entirely.

This is not tax evasion. It is legal tax planning, but it requires genuine relocation. You must change your domicile by:

• Moving your physical residence
• Updating your driver’s license and vehicle registration
• Registering to vote in the new state
• Filing your final Washington return as a part-year resident
• Spending the majority of your time in the new state

Washington Department of Revenue may challenge your residency change if you sell immediately after relocating and return shortly after. To strengthen your position, maintain documentation showing genuine intent to relocate, such as purchasing a home, obtaining local memberships, and establishing professional ties in the new state.

Qualified Opportunity Zone Investments

You can defer Washington capital gains tax by reinvesting proceeds into a Qualified Opportunity Zone fund within 180 days of the sale. This allows you to defer both federal and state capital gains tax until 2026 or until you sell the QOZ investment, whichever comes first.

If you hold the QOZ investment for at least 10 years, you can eliminate capital gains tax on the appreciation of the QOZ investment itself (though the original deferred gain will eventually be recognized). For investors with multi-million-dollar exits, this can result in six-figure tax savings.

QOZ investments require careful due diligence. Not all opportunity zone funds are created equal, and the investment must be made within the strict 180-day window to qualify for deferral.

Special Situations and Edge Cases

Washington’s capital gains tax creates complications for specific taxpayer groups. Here’s what you need to know if you fall into one of these categories.

Part-Year Residents

If you move to or from Washington during the tax year, you’re only subject to Washington capital gains tax on gains realized while you were a Washington resident. Your capital gains are apportioned based on the number of days you lived in Washington.

Example: You lived in Washington from January 1 to June 30, 2026 (181 days), then relocated to Texas. You sold stock in November 2026, realizing a $400,000 gain. Washington will not tax this gain because you were not a resident on the date of sale.

However, if you sold the stock in May 2026 while still a Washington resident, you would owe the full Washington capital gains tax on the amount exceeding $262,000.

Married Couples Filing Separately

The $262,000 standard deduction applies per return, not per person. If you and your spouse file separate Washington returns, you must split the standard deduction equally: $131,000 each.

For most married couples, filing jointly is the better option. But if one spouse has significantly higher capital gains and the other has capital losses, separate filing might produce a better result. Run the numbers both ways before deciding.

Trusts and Estates

Washington capital gains tax applies to trusts and estates that are residents of Washington. Trusts can claim the $262,000 standard deduction just like individual taxpayers.

If you’re the trustee of a Washington trust that holds appreciated stock or business interests, you need to plan distributions carefully. Capital gains passed through to beneficiaries may retain their character and remain subject to Washington tax depending on the beneficiary’s residency status.

Non-Residents With Washington-Source Income

Washington capital gains tax generally does not apply to non-residents. If you live in Oregon but own stock in a Washington-based company, the sale of that stock is not subject to Washington capital gains tax as long as you remain an Oregon resident.

However, if you own a business physically located in Washington, the sale of that business interest may create nexus and trigger Washington tax liability even if you’re not a resident. The rules here are complex and fact-specific.

Red Flag Alert: What the Washington Department of Revenue Is Watching

Washington’s capital gains tax is new, and enforcement is ramping up. Here are the red flags that trigger audits and challenges from the Department of Revenue.

Last-Minute Residency Changes

The most common audit trigger is a taxpayer who changes residency right before a large capital gain and returns to Washington shortly after. If you sell your business in March 2026 after establishing Nevada residency in January 2026, expect scrutiny.

The Department of Revenue will examine your driver’s license, voter registration, utility bills, travel records, and professional ties. If they determine you didn’t genuinely relocate, they will assess back taxes, penalties, and interest.

Underreporting Business Sale Proceeds

When you sell a business interest, the buyer typically reports the transaction on IRS Form 1099-B or sends a copy of the purchase agreement to the IRS. Washington receives this information through data-sharing agreements with the IRS.

If you fail to report the gain on your Washington return or claim an incorrect exemption for a family-owned business, the Department of Revenue will issue a notice of deficiency and assess penalties.

Claiming Exemptions Without Documentation

Washington allows exemptions for qualified family-owned small businesses, but the requirements are strict. You must own the business for at least five years, employ at least 50% Washington residents, and meet specific asset and income tests.

If you claim this exemption without proper documentation, the Department of Revenue will disallow it and assess back taxes plus a 5% penalty and 1% monthly interest.

KDA Case Study: Real Estate Investor

Jason, a 48-year-old Seattle real estate investor, held a large position in Microsoft stock he acquired through an employee stock purchase plan 15 years ago. In early 2025, he decided to sell $600,000 in Microsoft shares to diversify his portfolio and purchase additional rental properties.

Jason’s original basis in the stock was $150,000, creating a long-term capital gain of $450,000. Without planning, he would have owed:

• Federal capital gains tax (20%): $90,000
• Net investment income tax (3.8%): $17,100
• Washington capital gains tax on $188,000 ($450,000 – $262,000): $13,160
• Total tax liability: $120,260

Instead, Jason worked with our team to implement a two-part strategy. First, we harvested $50,000 in capital losses from underperforming positions in his portfolio. Second, we structured the sale as two separate transactions: $325,000 in December 2025 and $275,000 in January 2026.

The result: Jason’s taxable gain in each year fell below the $262,000 Washington threshold after applying the capital losses. His Washington capital gains tax dropped to zero, saving him $13,160. His total tax savings, including optimized federal planning, exceeded $22,000. Jason paid $4,200 for our tax planning services, generating a first-year ROI of 5.2x.

Ready to see how we can help you? Explore more success stories on our case studies page to discover proven strategies that have saved our clients thousands in taxes.

How Washington Capital Gains Tax Interacts With Federal Tax

Washington’s capital gains tax is completely separate from federal capital gains tax. You report and pay each tax independently, but they interact in important ways.

No State Deduction on Federal Return

You cannot deduct Washington capital gains tax on your federal income tax return. The Tax Cuts and Jobs Act capped the state and local tax (SALT) deduction at $10,000, and capital gains tax does not qualify as an itemized deduction in any case.

This means Washington capital gains tax is a true additional cost with no federal offset.

Capital Loss Carryforwards Don’t Transfer

Federal tax law allows you to carry forward unused capital losses indefinitely to offset future gains. Washington does not allow capital loss carryforwards. Losses only offset gains in the same tax year.

If you have $300,000 in capital losses in 2025 and $400,000 in gains in 2026, the 2025 losses are worthless for Washington purposes. This makes timing even more important.

Holding Period Alignment

Washington capital gains tax applies only to long-term capital gains (assets held more than one year). This mirrors federal treatment. If you sell an asset after holding it for 11 months, it generates a short-term capital gain, which is taxed as ordinary income federally and not subject to Washington capital gains tax.

However, holding the asset for one additional month converts it to a long-term gain, triggering potential Washington tax liability. The difference between selling on day 364 versus day 366 can cost you 7% of your gain at the state level.

Reporting Requirements and Compliance

Washington capital gains tax has specific filing requirements separate from your federal return. Here’s what you need to know to stay compliant.

Who Must File

You must file a Washington capital gains tax return if:

• You are a Washington resident (or part-year resident)
• You realized long-term capital gains during the tax year
• Your gains exceed the $262,000 standard deduction

Even if you owe no tax after applying the standard deduction, you must still file if your gross long-term capital gains exceed $262,000.

Form and Deadline

Washington capital gains tax returns are due on April 15 following the tax year, the same deadline as your federal return. You file electronically through the Washington Department of Revenue’s online portal.

Extensions are available, but you must pay any estimated tax due by April 15 to avoid penalties and interest.

Payment Methods

You can pay Washington capital gains tax online via ACH transfer, credit card, or check. Estimated tax payments are not required, but if you expect to owe more than $5,000, making quarterly payments can help you avoid a large April bill.

Penalties for Non-Compliance

Failure to file or pay on time results in:

• 5% late filing penalty (increases to 25% if more than 60 days late)
• 1% monthly interest on unpaid tax (compounds monthly)
• Potential fraud penalties of 50% if the Department of Revenue determines you intentionally avoided filing

Washington shares data with the IRS and receives reports of capital gains transactions. If you fail to file and owe tax, you will eventually receive a notice of deficiency with penalties and interest added.

Frequently Asked Questions

Does Washington capital gains tax apply to cryptocurrency sales?

Yes. Cryptocurrency is treated as property for tax purposes. If you hold Bitcoin, Ethereum, or other digital assets for more than one year and sell at a gain, the profit is subject to Washington capital gains tax if your total long-term gains exceed $262,000. Short-term crypto gains (held one year or less) are not subject to Washington capital gains tax.

Can I avoid Washington capital gains tax by selling assets through an LLC or trust?

No. Washington capital gains tax applies to individuals, trusts, and estates. Using an entity to hold assets does not eliminate the tax. If the LLC or trust is a pass-through entity (which most are), the capital gain passes through to you as the owner and is taxed on your individual return. Trusts may claim the $262,000 deduction, but they cannot avoid the tax by existing as a separate entity.

What happens if I move out of Washington after selling an asset but before year-end?

Washington capital gains tax is based on your residency status on the date of sale. If you were a Washington resident when you sold the asset, you owe Washington capital gains tax on the gain even if you move before December 31. Moving after the sale does not eliminate the tax liability.

Does the sale of my primary residence trigger Washington capital gains tax?

No. Real estate is specifically excluded from Washington capital gains tax. This includes your primary residence, vacation homes, rental properties, and land. You will still owe federal capital gains tax on any gain not covered by the Section 121 exclusion (up to $250,000 for single filers, $500,000 for married filing jointly), but Washington will not tax it.

Are there any refunds or credits available under Washington capital gains tax?

No. Washington capital gains tax does not offer refundable credits or refunds. If you overpay, you can apply the credit to future years, but Washington does not issue refund checks for capital gains tax overpayments. This is different from Washington’s Working Families Tax Credit, which is refundable.

Can I deduct investment fees or advisor costs against my Washington capital gains?

No. Washington capital gains tax is based on your federal capital gain calculation. Investment advisory fees, trading costs, and management expenses are not deductible for federal capital gains purposes after the Tax Cuts and Jobs Act eliminated miscellaneous itemized deductions. Since Washington uses the federal gain as the starting point, these costs do not reduce your Washington tax liability.

Strategic Takeaways for 2026 and Beyond

Washington’s capital gains tax isn’t going anywhere. In fact, it survived a court challenge in 2023 when the Washington Supreme Court upheld the tax as an excise tax rather than an unconstitutional income tax. Here are the key strategic takeaways for managing this tax in 2026 and future years.

Time Your Sales Strategically

The $262,000 annual threshold resets every January 1. If you’re planning to sell multiple positions, spread them across tax years to maximize use of the standard deduction. Selling $500,000 in December costs you $16,660 in Washington tax. Selling $250,000 in December and $250,000 in January costs you zero.

Maintain Loss Positions for Harvesting

Since Washington does not allow loss carryforwards, you need current-year losses to offset current-year gains. Maintain a diversified portfolio with some positions that can be harvested for losses when you realize large gains.

Consider Relocation for Business Exits

If you’re planning to sell a business with a multi-million-dollar gain, the tax savings from relocating to a no-capital-gains state can exceed $100,000. Compare this to the cost of moving, and the decision becomes clear for many business owners.

Use Charitable Giving as a Planning Tool

Donor-advised funds allow you to donate appreciated stock, avoid capital gains tax, and distribute the funds to charities over multiple years. This is one of the most powerful strategies for high-income earners facing both federal and Washington capital gains tax.

Work With a CPA Who Understands Washington Tax

Washington’s capital gains tax is complex and relatively new. Many CPAs lack experience with the nuances of residency, exemptions, and strategic planning. Working with a firm that specializes in Washington tax law can save you tens of thousands of dollars.

Curious how these strategies apply to your specific situation? Use our capital gains tax calculator to estimate your potential liability and see where you can save.

Book Your Washington Capital Gains Tax Strategy Session

If you’re facing a large stock sale, business exit, or concentrated equity position, don’t leave your tax planning to chance. Washington’s 7% capital gains tax can cost you tens of thousands of dollars, but the right strategy can reduce or eliminate that liability completely. Book a personalized consultation with our team and get clear, compliant, and confident about your capital gains strategy. Click here to book your consultation now.

This information is current as of 5/18/2026. Tax laws change frequently. Verify updates with the IRS or Washington Department of Revenue if reading this later.