This bill amends and reenacts RCW 83.100.020 to set the "applicable exclusion amount" for Washington estate tax at $2,193,000 for decedents dying before January 1, 2026, and establishes a procedural change requiring annual adjustments for decedents dying in calendar year 2026 and thereafter. The adjustments are to be made by applying changes in the Seattle-area consumer price index (CPI) using the most recent October CPI compared to October 2024, with results rounded to the nearest $1,000; no adjustment is made for a calendar year if it would produce the same or a lesser exclusion amount than the immediately preceding year. The act also states that RCW 82.32.805 and 82.32.808 do not apply to this act. The bill revises statutory definitions and references used in chapter 83.100 RCW, including definitions for applicable exclusion amount, consumer price index, Seattle metropolitan area, decedent, department (Department of Revenue), federal return, federal taxable estate, gross estate, Internal Revenue Code references, person, property, resident, taxpayer, transfer, and Washington taxable estate (defined as the federal taxable estate plus specified additions and minus specified deductions, including the applicable exclusion amount and deductions under RCW 83.100.046, .047, and .048). Affected parties include the Department of Revenue, estates subject to Washington estate tax, persons required to file federal estate tax returns (for example personal representatives), and the U.S. Bureau of Labor Statistics as the CPI data source. The document includes procedural dates (bill read first time January 21, 2025, and referred to the Committee on Ways & Means) and cross-references to RCW sections and IRC provisions cited in the amended section. The extract appears to be a single section and may not include the bill's full text, an effective date, implementation details, administrative rules, or the content of RCW 82.32.805 and 82.32.808, so those elements are uncertain from the provided text.

If enacted, the law fixes Washington’s estate tax exclusion at $2,193,000 for deaths before January 1, 2026 and then ties the exclusion to the Seattle-area consumer price index beginning in 2026, with annual upward adjustments (rounded to the nearest $1,000) based on October CPI compared to October 2024 but never allowing the exclusion to fall or stay the same as the prior year. In practical terms, estates near the current threshold are likely to face less state estate tax over time as the exclusion rises with local inflation, so fewer estates will owe tax or the tax bill for marginal estates will shrink. The main people and offices affected are estates of decedents subject to Washington estate tax, the personal representatives who must file federal estate returns, and the Department of Revenue, which will need to apply and presumably publish the new annual exclusion amounts using BLS Seattle CPI data. The bill does not provide implementation details or the effective date for other procedures, and it also excludes the application of RCW 82.32.805 and 82.32.808 without saying what that change means, so some administrative and legal effects remain unclear.