ESSB 6231

Momentum Bucket Became Law
Legal Title AN ACT Relating to removing a tax exemption for the replacement of equipment for data centers;
Bill Description Expiring tax exemptions for data centers. (REVISED FOR ENGROSSED: Removing a tax exemption for the replacement of equipment for data centers.)
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ESSB 6231 Details and Bill Topics

Details

Date Introduced 02/19/2026
Originating Chamber Senate
Biennium 2025-26
Total Campaign Dollars Backing Bill $542,019.38

Bill Topics

TAX PREFERENCES - EXEMPTIONS, CREDITS, DEDUCTIONS, DEFERRALS, ETC.

ESSB 6231 Sponsors and Committee Hearings

Sponsors

Senator Frame (Primary)
Senator Hasegawa

Committee Hearings

Hearing Senate Ways & Means (Public)
Hearing Senate Ways & Means (Executive)
Hearing House Finance (Public)
Hearing House Finance (Executive)
Go to ESSB 6231 at leg.wa.gov

ESSB 6231 Bill Timeline

Became Law
3/31/2026
C 266 L 26
Effective date 6/11/2026*.
3/31/2026
C 266 L 26
Chapter 266, 2026 Laws.
3/31/2026
C 266 L 26
Governor signed.
3/12/2026
C 266 L 26
Delivered to Governor.
3/11/2026
C 266 L 26
Speaker signed.
3/11/2026
C 266 L 26
President signed.
3/11/2026
C 266 L 26
Third reading, passed; yeas, 51; nays, 46; absent, 0; excused, 1.
3/8/2026
C 266 L 26
Rules Committee relieved of further consideration. Placed on second reading.
3/8/2026
C 266 L 26
Referred to Rules 2 Review.
3/6/2026
C 266 L 26
FIN - Majority; do pass.
3/6/2026
C 266 L 26
FIN - Executive action taken by committee.
3/2/2026
C 266 L 26
First reading, referred to Finance.
2/27/2026
C 266 L 26
Third reading, passed; yeas, 26; nays, 23; absent, 0; excused, 0.
2/27/2026
C 266 L 26
Rules suspended. Placed on Third Reading.
2/27/2026
C 266 L 26
Floor amendment(s) adopted.
2/27/2026
C 266 L 26
1st substitute bill substituted.
2/26/2026
C 266 L 26
Placed on second reading by Rules Committee.
2/22/2026
C 266 L 26
Passed to Rules Committee for second reading.
2/18/2026
C 266 L 26
Minority; without recommendation.
2/18/2026
C 266 L 26
Minority; do not pass.
2/18/2026
C 266 L 26
WM - Majority; 1st substitute bill be substituted, do pass.
1/19/2026
Ssubst for
First reading, referred to Ways & Means.