Washington state has a capital gains tax on long-term gains exceeding $250,000 per year. The rate is 7 percent on gains between $250,001 and $1 million, and 9.9 percent on gains above $1 million.
The good news is that there are several legal ways to reduce or avoid this tax entirely. Some strategies involve timing your sales. Others use exemptions written into the law. A few require longer-term planning.
The short answer is that you can avoid Washington capital gains tax by keeping your annual gains under $250,000, using the primary residence exemption, holding assets until death, harvesting losses, selling over multiple years, using retirement accounts, or moving to another state.
Strategy one: Keep gains under $250,000 per year
The simplest way to avoid the tax is to keep your capital gains below $250,000 in any single year. The first $250,000 of gains are completely exempt. You pay nothing on that amount.
If you have $300,000 of gains, you pay tax on $50,000. If you have $240,000 of gains, you pay nothing.
This strategy works best if you have control over when you sell assets. Instead of selling everything at once, you sell pieces over multiple years. Each year, you stay under the $250,000 threshold.
For example, you own stock worth $1 million with a cost basis of $200,000. Your gain is $800,000. If you sell all of it in one year, you pay tax on $550,000 after the $250,000 exemption. That is a large tax bill.
If you sell $300,000 of stock each year for three years, your gain each year might be around $240,000. That is below the threshold. You pay no tax at all.
The catch is that stock prices move. You cannot perfectly control the gain. But you can get close by selling in smaller chunks.
Strategy two: Use the primary residence exemption
If you sell your home, you get a generous exemption. This is written directly into the Washington capital gains tax law.
For a single person, the first $250,000 of gain from selling your primary residence is exempt. For a married couple, the first $500,000 is exempt.
To qualify, you must have owned the home and lived in it as your primary residence for at least two of the last five years. That is the same test used for the federal capital gains exclusion.
If your gain is below the exemption amount, you pay no Washington capital gains tax at all. If your gain is above the exemption, you pay tax only on the excess.
For example, a married couple buys a home for $500,000 and sells it for $1.2 million. The gain is $700,000. The first $500,000 is exempt. The remaining $200,000 is taxable. That $200,000 is below the $250,000 threshold, so they actually pay no tax at all.
If the same couple sells for $1.5 million, the gain is $1 million. The first $500,000 is exempt. The remaining $500,000 is taxable. After the $250,000 standard deduction, $250,000 is taxed at 7 percent. The tax bill is $17,500.
This exemption applies only to your primary residence. It does not apply to rental properties, vacation homes, or land.
Strategy three: Hold assets until death
This is one of the most powerful strategies for avoiding capital gains tax, but it requires patience.
When you die, your assets pass to your heirs. Under federal law and Washington law, your heirs receive a stepped-up basis. That means the tax basis of the asset is adjusted to its fair market value on the date of your death.
Here is how it works. You bought stock for $100,000. It is now worth $1 million. If you sell it while you are alive, you have a $900,000 gain. You would pay Washington capital gains tax on $650,000 after the $250,000 exemption.
If you hold the stock until you die, your heirs receive it with a basis of $1 million. They could sell it the next day and have no gain at all. The $900,000 of appreciation never gets taxed.
This strategy works for stocks, real estate, business interests, and most other appreciated assets. The only catch is that you cannot use the money while you are alive. If you need the cash, you have to sell.
For wealthy individuals who do not need to sell assets during their lifetime, holding until death is the most effective way to avoid capital gains tax entirely.
Strategy four: Harvest losses
Capital losses can offset capital gains. If you have gains in one investment and losses in another, you can sell the losing investment to cancel out the gain.
For example, you have $400,000 of gains from selling Stock A. You also have $200,000 of losses from Stock B. You sell Stock B in the same year. Your net gain is $200,000, which is below the $250,000 threshold. You pay no tax.
The key is that the losses must be realized in the same tax year as the gains. Washington does not allow you to carry losses forward to future years. If you have a loss in 2025, you cannot use it to offset a gain in 2026.
You also cannot use losses from exempt assets to offset gains from taxable assets. A loss on the sale of your primary residence does not offset stock gains. Only losses from taxable assets count.
Loss harvesting works best in volatile markets. When some investments go down, you sell them to offset the gains from investments that went up.
Strategy five: Sell over multiple years
This is a variation of the first strategy. Instead of keeping each year's gains under $250,000, you spread a large gain across several tax years.
Say you own a business worth $5 million with a basis of $1 million. Your gain is $4 million. If you sell the entire business in one year, you pay tax on $3.75 million after the $250,000 exemption. That is a massive tax bill.
If you structure the sale as an installment sale, you receive payments over several years. Your gain is recognized as you receive the payments. You could spread the $4 million gain over five years, recognizing roughly $800,000 of gain each year.
Each year, you subtract the $250,000 exemption. You pay tax on $550,000 per year. The tax rate on the first $750,000 of taxable gain each year is 7 percent. You pay roughly $38,500 per year for five years. That is much less painful than paying the entire tax in one year.
Installment sales work well for business sales and real estate sales. The buyer pays you over time. You report the gain as you receive the money. You need to structure the sale agreement properly.
Strategy six: Use retirement accounts
Assets held inside retirement accounts are completely exempt from the Washington capital gains tax. This includes 401(k) plans, traditional IRAs, Roth IRAs, SEP IRAs, SIMPLE IRAs, and pension plans.
The exemption applies to gains realized inside the account. It also applies to distributions from the account. When you withdraw money from a retirement account, you do not pay Washington capital gains tax on the withdrawal.
This is true even if the withdrawal includes large gains. If you have $1 million in a traditional IRA that you contributed $100,000 to over the years, the $900,000 of gain is not subject to Washington capital gains tax when you withdraw it.
The catch is that you may owe federal income tax on the withdrawal. But the Washington capital gains tax is separate and does not apply.
For most people, the best strategy is to keep as much of your investments inside retirement accounts as possible. That shelters them from the capital gains tax entirely.
Frequently Asked Questions (FAQ)
How can I avoid capital gains tax in Washington state?
You can avoid the tax by keeping annual gains under $250,000, using the primary residence exemption, holding assets until death, harvesting losses, selling over multiple years, using retirement accounts, or moving to another state. Each strategy has different requirements and works best in different situations.
Does the primary residence exemption apply to vacation homes?
No. The primary residence exemption applies only to the home where you actually live. Vacation homes, rental properties, and land do not qualify. If you sell a vacation home, the gain is subject to the capital gains tax after the $250,000 standard deduction.
Can I avoid the tax by giving assets to my children?
Gifting assets does not avoid the capital gains tax. When you give an appreciated asset to someone else, you are not taxed on the gain at the time of the gift. But the recipient takes your basis. When they sell the asset, they will owe tax on the gain. The only way to eliminate the gain entirely is to hold the asset until death, at which point the basis steps up.
Does moving to another state really work?
Yes, but you need to actually move. Changing your residency means establishing a new home in another state and severing your ties to Washington. You must spend more than half the year in the new state, register to vote there, get a driver's license there, and change your banking and professional relationships. The state can audit you and challenge your move if you maintain strong ties to Washington.
How does loss harvesting work for Washington capital gains tax?
Loss harvesting means selling investments that have lost value to offset gains from investments that have gained value. The losses must be realized in the same tax year as the gains. Washington does not allow loss carryforwards. You cannot use losses from prior years to offset current year gains. You also cannot use losses from exempt assets to offset gains from taxable assets.
What is the best strategy for someone with a large stock portfolio?
For a large stock portfolio, the best strategies are holding until death, selling over multiple years, or moving to another state. Holding until death eliminates the tax entirely but means you cannot use the money while you are alive. Selling over multiple years keeps each year's gain under $250,000. Moving to another state before selling allows you to sell free of Washington tax.
Does the family business exemption exist in Washington?
Washington has a family business exemption that allows up to $10 million of gain to be exempt from the capital gains tax. The requirements are strict. The business must have been owned and operated by the same family for at least ten years. The family must have materially participated in the business. You should work with a tax professional to see if you qualify.