Question

How are Washington estate tax rates changing under SB 6347?

Answer

For deaths between July 1, 2025, and June 30, 2026, the top marginal rate is 35%.
For deaths on or after July 1, 2026, SB 6347 restores the prior graduated rate schedule with a top marginal rate of 20%.

About Mercer Advisors

We exist so you don’t have to worry about money. For more than 40 years, we’ve taken the sophisticated, time-tested approach that many ultra-high net worth individuals use to help manage their financial lives and made it accessible to more families.

Want to learn more about Mercer Advisors?