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Bill > SB6347


WA SB6347

WA SB6347
Revised for engrossed: Undoing certain changes to the estate tax.


summary

Introduced
02/04/2026
In Committee
03/02/2026
Crossed Over
02/16/2026
Passed
03/24/2026
Dead
Signed/Enacted/Adopted
03/24/2026

Introduced Session

2025-2026 Regular Session

Bill Summary

AN ACT Relating to undoing certain changes to the estate tax; and 2 amending RCW 83.100.020 and 83.100.040. 3

AI Summary

This bill, titled "Undoing certain changes to the estate tax," amends existing Washington state law concerning estate taxes by adjusting the "applicable exclusion amount," which is the value of an estate that is exempt from estate tax. Specifically, it modifies the definition of this amount by reinstating and adjusting certain thresholds for estates of decedents dying on or after January 1, 2026, and introduces an annual inflation adjustment for the exclusion amount starting in 2027, based on the consumer price index for the Seattle-Tacoma-Bremerton metropolitan area. The bill also revises the tax tables for calculating the estate tax for decedents dying on or after July 1, 2025, and July 1, 2026, effectively undoing prior changes and re-establishing a different tax structure for those periods. The "Internal Revenue Code" (IRC) refers to the United States federal tax code, and "federal taxable estate" is the taxable estate as determined by the IRC, with certain modifications. The "Washington taxable estate" is the federal taxable estate adjusted according to state law, including deductions and the applicable exclusion amount.

Committee Categories

Budget and Finance

Sponsors (4)

Last Action

Effective date 6/11/2026. (on 03/24/2026)

Bill Topics

Macroeconomics
  • ‐ Taxation, Tax Policy, and Tax Reform

bill text


bill summary

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bill summary

Document Type Source Location Created
State Bill Page https://app.leg.wa.gov/billsummary?BillNumber=6347&Year=2025&Initiative=false 02/03/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Session%20Laws/Senate/6347.SL.pdf 03/31/2026
Fiscal Note - 6347 SB .PL (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77591 03/20/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Passed%20Legislature/6347.PL.pdf 03/12/2026
Final bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347.E%20SBR%20FBR%2026.pdf 03/12/2026
Engrossed House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/6347.E%20HBR%20APH%2026.pdf 03/12/2026
Engrossed Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347.E%20SBR%20HA%2026.pdf 03/12/2026
Stokesbary 6347.E AMH STOK TAYT 607 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20STOK%20TAYT%20607.pdf 03/12/2026
Scott 6347.E AMH SCOT TAYT 606 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20SCOT%20TAYT%20606.pdf 03/11/2026
Dufault 6347.E AMH DUFA TAYT 603 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20DUFA%20TAYT%20603.pdf 03/10/2026
Fiscal Note - 6347 SB 6347.E AMH FIN H3753.1 (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77395 03/04/2026
Scott 6347.E AMH SCOT H3783.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20SCOT%20H3783.1.pdf 03/04/2026
Scott 6347.E AMH SCOT H3781.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20SCOT%20H3781.1.pdf 03/04/2026
Scott 6347.E AMH SCOT H3780.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20SCOT%20H3780.1.pdf 03/04/2026
Walen 6347.E AMH WALE H3776.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20WALE%20H3776.1.pdf 03/03/2026
Finance 6347.E AMH FIN H3753.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/6347.E%20AMH%20FIN%20H3753.1.pdf 03/02/2026
Engrossed House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/6347.E%20HBR%20FIN%2026.pdf 03/02/2026
Engrossed House bill analysis 2026 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/6347.E%20HBA%20FIN%2026.pdf 02/20/2026
Fiscal Note - 6347 ESB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77001 02/19/2026
Engrossed Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347.E%20SBR%20APS%2026.pdf 02/17/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/6347.E.pdf 02/17/2026
Kauffman 6347 AMS KAUF S5287.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/6347%20AMS%20KAUF%20S5287.1.pdf 02/16/2026
Kauffman 6347 AMS KAUF S5211.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/6347%20AMS%20KAUF%20S5211.1.pdf 02/16/2026
Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347%20SBR%20WM%20OC%2026.pdf 02/10/2026
Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347%20SBR%20WM%20TA%2026.pdf 02/09/2026
Senate bill report (orig.) https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/6347%20SBA%20WM%2026.pdf 02/06/2026
Fiscal Note - 6347 SB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=76409 02/06/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/6347.pdf 02/03/2026
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