// Exemption

Data center equipment and infrastructure

Retail Sales & Use Tax exemption · RCW 82.08.986; 82.12.986 · enacted 2010

All exemptions & deductions
Scope narrowedESSB 6231 (2026) · effective 2026-07-01

Before ESSB 6231

The data center sales/use tax exemption under RCW 82.08.986 / 82.12.986 covered eligible server equipment and power/cooling infrastructure at qualifying data centers, including replacement and refurbished server equipment (2024 DOR Tax Exemption Study baseline).

Source: 2024 DOR Tax Exemption Study · RCW 82.08.986; 82.12.986

After

Effective July 1, 2026, ESSB 6231 narrowed the exemption by removing it for replacement and refurbished server equipment (the "replacement server equipment" eligibility is eliminated), while preserving the exemption for new equipment at newly built/eligible data centers. Confirm eligibility and dates against ESSB 6231 (2026) and current DOR guidance.

Source: ESSB 6231 (2026)

Details

Citation
RCW 82.08.986; 82.12.986
Study reference
E1694-1
Tax type
Retail Sales & Use Tax
Preference type
Exemption
Category
Business
Year enacted
2010
End date
2048-07-01 00:00:00

Fiscal impact (2024 study estimates)

Revenue if repealed — local ($M)
FY 2024: 0 · FY 2025: 21.35 · FY 2026: 24.79 · FY 2027: 25.79
Revenue if repealed — state ($M)
FY 2024: 0 · FY 2025: 75.38 · FY 2026: 87.04 · FY 2027: 89.04
Taxpayer savings — local ($M)
FY 2024: 22.59 · FY 2025: 23.29 · FY 2026: 24.79 · FY 2027: 25.79
Taxpayer savings — state ($M)
FY 2024: 77.54 · FY 2025: 82.24 · FY 2026: 87.04 · FY 2027: 89.04

CTI = confidential taxpayer information · D = unable to disclose

From the 2024 DOR Tax Exemption Study

Excise Tax Advisory Excise Tax Advisories are interpretive statements authorized by RCW 34.05.230. ETA 3213.2023 Issue Date: May 22, 2023 Data Center Exemption Durations Introduction RCW 82.08.986 and RCW 82.12.986 provide retail sales and use tax exemptions, respectively, on the purchase and installation of both server equipment and power infrastructure in a qualifying computer data center located within a rural1 county (“rural data center”). RCW 82.08.9861 and RCW 82.12.9861 provide similar retail sales and use tax exemptions for a qualifying computer data center located in an urban county with a population over 800,000 (“urban data center”). These laws are collectively known as the “data center statutes,” and the applicable exemptions are commonly referred to as the “data center exemptions.” How long a data center exemption lasts (the “duration”) for a taxpayer depends on the following: • Whether the data center is a rural or urban data center; • When data center construction commenced; • The type of equipment involved; and • Whether the applicant is a data center owner2 or tenant. This Excise Tax Advisory (ETA) provides the various durations and expirations of the data center e

Does this apply to you?

This is reference data from the 2024 study — not advice, and 2025–26 legislation may have changed it. Three ways to go deeper: