SB 5405
In CommitteeSenate
Estate tax exclusion amount
Updating the inflation adjustment for the estate tax exclusion amount.
This status may be delayed. See Action History below for the latest updates.
How does a bill become law?
- Introduced: The bill is filed and assigned a number.
- Committee: A subject-matter committee holds hearings, takes public testimony, and decides whether to advance the bill.
- Floor Vote: The full chamber (House or Senate) debates and votes on the bill.
- Opposite Chamber: The bill repeats the committee and floor vote process in the other chamber.
- Governor: The Governor reviews the bill and decides whether to sign or veto it.
- Signed: The bill has been signed into law.
AI Analysis
This bill lowers the estate tax exclusion amount to $2,193,000 for deaths before 2026 and establishes a new annual inflation adjustment formula starting in 2026, tied to the Seattle-area Consumer Price Index. It also prevents the exclusion amount from decreasing even if inflation falls.
- Reduces the estate tax exclusion amount to $2,193,000 for decedents dying before January 1, 2026 (down from $2.193 million in 2025, adjusted for prior years' inflation).
- Starts annual inflation adjustments for the exclusion amount beginning in calendar year 2026, using the Seattle-Tacoma-Bremerton area Consumer Price Index (CPI) as the benchmark.
- Requires the annual adjustment to be rounded to the nearest $1,000, and prohibits the exclusion amount from decreasing from one year to the next—even if inflation is negative.
- Sets the exclusion amount in effect on the date of death as the amount used to calculate estate tax liability.
- Defines the 'consumer price index' specifically as the CPI for all urban consumers in the Seattle metropolitan area, as calculated by the U.S. Bureau of Labor Statistics.
Who is affected
- Estate executors and heirs of large estates — Estate tax filers (typically executors or personal representatives of estates) whose estates exceed the exclusion amount; this bill changes how the exclusion amount is calculated and adjusted for inflation starting in 2026.
- High-net-worth Washington residents — Washington residents with estates valued near or above the current exclusion amount, who may face estate tax liability depending on the size of the estate at death.
- Washington State Department of Revenue — State government agencies responsible for collecting and administering estate taxes, particularly the Department of Revenue, which must implement the updated inflation adjustment formula.
- Estate planning professionals — Financial and legal professionals (e.g., estate planners, accountants, tax advisors) who advise clients on estate tax planning and compliance.
Pro/Con Analysis
Stronger case for concerns
Potential Benefits (2)
Prohibiting decreases in the exclusion amount—even during deflation—provides predictability and protects estates from sudden tax spikes during economic downturns, reducing planning uncertainty for middle-wealth families with estates near the threshold.
FinancialPeopleRef: Sec. 1(1)(a)(ii)Standardizing the inflation metric to a specific, transparent CPI (Seattle MSA) improves administrative clarity for the Department of Revenue and reduces disputes over valuation, though this benefit is modest and does not offset revenue loss.
Local GovernmentLean peopleRef: Sec. 1(1)(a)(ii)
Potential Concerns (4)
Lowering the estate tax exclusion to $2,193,000 (effectively freezing it at 2025 levels through 2025) increases estate tax liability for estates just above this threshold—many of which fall in the $2.2M–$3M range—potentially forcing heirs to liquidate family farms, businesses, or homes to pay taxes, even if the estate lacks liquidity.
FinancialIndustryRef: Sec. 1(1)(a)(i)Using the Seattle-area CPI (rather than national CPI) and prohibiting downward adjustments—even during deflation—artificially inflates the exclusion amount over time relative to national trends, disproportionately benefiting high-net-worth individuals in the Puget Sound region while leaving rural and inland Washington residents with similar estate values subject to higher effective tax rates.
FinancialIndustryRef: Sec. 1(1)(a)(ii) & (b)The inflation adjustment formula creates a structural bias toward higher exclusions over time, reducing state estate tax revenue and increasing pressure on other revenue sources (e.g., property and sales taxes), which disproportionately burden middle- and low-income households.
FinancialIndustryRef: Sec. 1(1)(a)(ii)The $2,193,000 exclusion level—while nominally lower than prior years’ projected inflation-adjusted amounts—still excludes the vast majority of Washington households (over 97% of estates are below this threshold), meaning only the top ~3% of wealthiest residents face any estate tax liability, and the bill’s changes further narrow that group.
FinancialIndustryRef: Sec. 1(1)(a)(ii)
Who Is Most Affected
Heirs and executors of estates valued between $2M–$3M may face unexpected tax liability and forced asset sales; those above $3M face higher taxes than under prior projections, but still remain a small, wealthy subset.
High-net-worth residents in the Puget Sound region benefit most from the Seattle-area CPI benchmark and exclusion level, while rural residents with similar estate values may face higher relative tax burdens due to regional disparities in asset appreciation and cost of living.
The Department of Revenue gains administrative clarity but faces revenue uncertainty; long-term revenue decline may strain budget planning, especially if estate tax revenue becomes more volatile due to regional inflation differences.
Estate planners may see increased demand for tax-minimization strategies (e.g., trusts, gifting) but also increased complexity due to regional CPI variations and exclusion-level uncertainty near the threshold.