Washington Supreme Court upholds capital gains tax

March 2023

In brief

A capital gains tax enacted in 2021 and effective beginning with the 2022 tax year is a valid excise tax under the state constitution, the Washington Supreme Court held March 24 in a 7-2 ruling. The court found, “The capital gains tax is appropriately characterized as an excise because it is levied on the sale or exchange of capital assets, not on capital assets or gains themselves.” As a result, the Washington Department of Revenue may continue to administer the tax, with the first annual return due on April 18, 2023. [Quinn v. Washington Dep’t of Rev., Wash., No. 100769-8, 3/24/23]

Observation: Because the court found that the Washington capital gains tax is an excise tax and not an income tax, it did not re-examine case law characterizing income taxes as taxes on “property” subject to limitations under the state’s constitution. As a result, while the capital gains tax regime will stand in Washington (unless the decision is reversed by the US Supreme Court), the decision itself does not open the way for the legislature to impose broad-based income taxes in the state.

Action item: Washington’s capital gains tax is the state’s first excise tax targeted at individuals. Individuals that hold long-term capital assets, including stock received as part of an employee compensation plan, should evaluate the effect of the capital gains tax and possible planning options.

In detail

Effective January 1, 2022, Washington imposes a 7% tax generally applicable to the recognized long-term capital gains reported on an individual’s federal income tax return. However, some adjustments to the federal determination of taxable capital gains may apply, in addition to certain Washington-specific carve-outs (such as real estate) and deductions (such as a standard deduction of $250,000).

If the capital asset is tangible personal property, the tax applies if (1) the property is located in Washington at the time of the sale or exchange or (2) the property was located in Washington at any time during the current or immediately preceding taxable year, the taxpayer was a Washington resident at the time of the sale or exchange, and the sale was not subject to income or excise tax on the adjusted capital gain by another taxing jurisdiction. If the capital asset is intangible personal property, then the tax applies if the taxpayer is domiciled in Washington at the time of sale or exchange. For more on the enacted law, see PwC’s Insight.

Litigation challenging the tax

On March 1, 2022, the Douglas County Superior Court issued a decision finding that the tax violated the uniformity and limitation requirements of article VII, sections 1 and 2 of the Washington State Constitution. Specifically, the court found that the capital gains tax violated the uniformity requirement by imposing a 7% tax on an individual’s long-term capital gains exceeding $250,000 while at the same time imposing no tax on capital gains below that threshold.

Regarding the limitation requirement, the Superior Court found the tax was invalid because it exceeds the 1% maximum annual property tax levy set forth in the state constitution. The court determined that under Washington case law, the capital gains tax is a tax on the receipt of income and therefore is “properly characterized as a tax on property.”

Washington Supreme Court finds the tax is valid

On the contrary, the Washington Supreme Court found, “Because the capital gains tax is an excise tax under Washington law, it is not subject to the uniformity and levy requirements of article VII.”

The court reasoned that the capital gains tax is an excise tax because taxpayers do not owe the tax “merely by virtue of owning capital assets or capital gains, like a property tax,” but instead due to their “exercise of rights ‘in and to property’—namely, the power to sell or transfer capital assets—like an excise” (quoting Mahler v. Tremper, 243 P.2d 627 (1952)). Therefore, the court concluded that the capital gains tax “taxes transactions involving capital assets—not the assets themselves or the income they generate.”

The Supreme Court noted that on the same day it had decided Culliton v. Chase, 25 P.2d 81 (1933), finding that a graduated income tax violated the state constitution, it also issued State ex rel. Stiner v. Yelle, 25 P.2d 91 (1933), which upheld Washington’s first business and occupation tax. The court in Stiner distinguished between a property tax on income and an excise tax on a particular activity or privilege that is measured by income.

Likewise, in Quinn, the court said that the capital gains tax “specifically targets an activity long recognized as subject to excise taxation—the sale or exchange of property.” The court stated that the capital gains tax is comparable to real estate and rental excise taxes upheld in a line of Washington Supreme Court decisions. While the plaintiffs “argue the taxable incident [of the capital gains tax] is not the transaction but the realization of capital gains,” the court concluded that “the tax is not levied on capital gains; rather, it is measured by capital gains.”

The Supreme Court further rejected challenges based on the Washington Constitution’s privileges and immunities clause and the US Constitution’s dormant commerce clause. In analyzing whether the tax withstood commerce clause scrutiny, the court emphasized the statute’s allowance of a credit for taxes paid in other states. The court noted that its commerce clause analysis is limited to the plaintiffs’ facial challenge to the capital gains tax, and that “our holding today does not foreclose future as-applied challenges under the dormant commerce clause should factual circumstances arise in which the tax cannot be constitutionally applied.”

Dissenting opinion emphasizes the measure of the tax

The dissenting opinion took the view that the capital gains tax statute “taxes the ‘gains’ or income ‘recognized’ by the transferrer of a qualifying capital asset. The statute does not tax the transfer itself.” The dissent noted that if taxpayers engage in subject capital asset transactions but realize no gain, they are not subject to the tax. This shows, the dissent argued, that the tax “is not really a tax on ‘capital transactions’ but rather realization of gain—income.”

While the dissent agreed that a line of cases has held that an excise tax may be measured “by some kind of income…the tax was measured by gross income—not by net income, such as capital gains” (emphasis in original). The majority, however, said that “we have upheld other transaction-related excises measured in some other manner than by gross property value,” citing a case which upheld the imposition of a leasehold excise tax for the use and occupancy of public property measured by the amount of taxable rent paid (Wash. Pub. Ports Ass’n v. Dep’t of Revenue, 62 P.3d 462 (2003)).

Contact us

Ed Geils

Ed Geils

Global and US Tax Knowledge Management Leader, PwC US

Follow us