Washington State Taxpayers Take Fight Over Capital Gains Tax to US Supreme Court

Taxpayers in Washington state are challenging the constitutionality of the state’s far-reaching capital gains tax in the U.S. Supreme Court after it was affirmed by the state’s supreme court.

Washington state Gov. Jay Inslee in Seattle on March 11, 2020. John Moore/Getty Images

Taxpayers are challenging the constitutionality of Washington state’s capital gains tax in the U.S. Supreme Court after it was upheld by the state’s supreme court.

Unlike most states, Washington state has no income tax on individuals or corporations.