ESSB 6231: Expiring tax exemptions for data centers. (REVISED FOR ENGROSSED: Removing a tax exemption for the replacement of equipment for data centers.)

What this bill does

Expires sales tax exemption certificates issued to qualifying rural county data centers based on refurbishment, effective July 1, 2026, and prohibits the future issue of such exemption certificates. Provides that data centers refurbished on or after July 1, 2026, do not qualify as eligible data centers for the purpose of the urban county data center sales tax exemption. Provides that replacement server equipment no longer qualifies as eligible server equipment for the purpose of the rural and urban county data center sales tax exemptions.

From the Washington State Legislature's nonpartisan staff bill analysis. Read the full analysis ↗

Floor votes

• House: 2663 Orcutt Pg 2 Ln 25 · March 12, 2026
  47 yea · 50 nay · 1 not voting
• House: 3rd Reading & Final Passage · March 12, 2026
  51 yea · 46 nay · 1 not voting
• Senate: 3rd Reading & Final Passage · February 28, 2026
  26 yea · 23 nay

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