What is the capital gains tax in Washington state?
Washington does not obtain a traditional personal income tax approach. This state levies an excise tax on the profit — capital gains — taxpayers make from selling long-term assets. For the 2025 tax year, the rules have changed to a tiered system:
- you pay 7% on taxable gains up to $1,000,000
- and 9.9% on any amount over $1,000,000
Washington capital gains tax rates apply only to the profit left over after subtracting the standard deduction.
What is Washington’s capital gains tax?
Simply put, this is a tax on the sale of high-value investments held for more than a year. It applies to individual taxpayers — not businesses. If you personally sell assets like stocks & bonds or business interests, and the profit is connected to Washington state, this tax may apply. The state calls this an "excise tax" because it is a tax on the activity of selling — rather than a tax on the income itself.
What is the Washington capital gains tax rate?
The Washington capital gains tax rate varies with the tax year & how much profit was made. For the upcoming filing season, a higher rate for very large gains was introduced.
Which sales count, and what does “allocated to Washington” mean?
A sale counts if the asset was "long-term" — you owned it for more than a year per federal rules — and if the profit is linked with Washington.
General taxable sales can be exemplified as below:
- Stocks & bonds and mutual funds
- Cryptocurrency held for more than one year
- Gains from selling an interest in an establishment
Allocated to Washington generally means:
- For intangibles (like stock) — you lived in Washington (were domiciled here) when you sold it
- For physical items (like art or collectibles) — the item was physically located in Washington when you sold it
What is the Washington capital gains tax standard deduction?
Think of this as the annual allowance. It is possible to earn a specific amount of long-term capital gains each year before the state taxes a single dollar. For 2025, that allowance is $278,000 — up from $270,000 in 2024. If the total long-term gain is lower than this amount, you generally do not owe the tax.
How much capital gains tax do I pay on $100,000?
You pay 0. If the only long-term gain for the year is $100,000, you are well under the $278,000 standard deduction. In this scenario, taxpayers do not even need to file a return with the state.
What are the Washington capital gains tax exemptions?
Washington excludes specific types of assets from this tax entirely. Even if you make a massive profit on such specific items, they do not count toward the capital gains tax.
- Real Estate — selling a home or investment property is exempt
- Retirement Accounts — Gains inside IRAs & 401(k)s and similar plans are exempt
- Small Business Assets — specific depreciable assets & those qualifying for federal Section 179 expensing
- Specific Industries — timber, timberlands, commercial fishing privileges and certain livestock sales
- Condemnation — property sold under threat of condemnation
How do you estimate your tax before selling?
It is possible to get a rough number by starting with the federal tax return data & working backward.
- Start with federal — look at the long-term gains — usually on Schedule D
- Remove exemptions — subtract any gains from real estate & retirement accounts
- Subtract the deduction — Take off the standard deduction ($278,000 for 2025)
- Calculation — If there is any money left over, apply the 7% rate to the first million and 9.9% to anything above that
For 2025, the Washington capital gains tax rate is 7% up to $1,000,000 of taxable Washington capital gains — then 9.9% above that line.
How do you file the Washington capital gains tax return?
You file Washington capital gains tax return — directly with the Washington Department of Revenue (DOR) — separate from the federal taxes.
Process:
- Deadline — the 2025 return is due April 15, 2026
- System — you must use the DOR’s online system: "MyDOR"
- Payment — you generally need to pay electronically — while you can request an extension to file paperwork — the payment is still due by April 15
How can Clarity Tax Group help with Washington capital gains tax planning?
We review the complete financial scenario to make sure that you aren't overpaying. Clarity Tax Group is ready to confirm which of the assets are truly exempt & calculate the exact liability and manage the filing process.
FAQs
How do I avoid capital gains tax in Washington state?
The direct way is to keep the long-term gains in parallel to the annual standard deduction. It is also possible to lower the tax bill by selling assets that are exempt — like real estate or retirement accounts — or by spreading the sales across multiple years in order to be under the limit.
What is the new 7% capital gains tax in Washington state?
This is the state's specific tax on profits from selling long-term assets — like stocks & bonds. After subtracting the standard deduction, you pay a 7% tax on the first $1,000,000 of profit.
How much capital gains tax do I pay on $100,000?
Zero. Since the 2025 standard deduction is $278,000, a $100,000 gain is significantly below the threshold. Unless you have other large gains that push you over the limit, you generally won't owe the state anything on this amount.
Which states have the highest capital gains tax?
States that have high income tax rates are generally the most expensive ones for capital gains. This is because many states treat capital gains just like regular income. They tax it at their top marginal income tax rate.