Washington State Inheritance Tax 2025. The washington state estate tax is calculated by taking the total value of the deceased's assets and subtracting any debts, funeral expenses, and administrative costs. Beginning on january 1, 2025, the federal estate, gift and gst tax exemptions will be $13,990,000 per taxpayer, an increase of $380,000 from 2024.

There are a number of options for reducing the tax, such as irrevocable life. The estate of any individual who dies with a net worth under $12.92 million in 2023 will not have to pay federal estate taxes.