Exemption
Anaerobic digesters
Property Tax exemption · RCW 84.36.635 · enacted 2003
Details
- Citation
- RCW 84.36.635
- Study reference
- E1445-1
- Tax type
- Property Tax
- Preference type
- Exemption
- Category
- Agriculture
- Year enacted
- 2003
- End date
- 2024-12-31 00:00:00
Fiscal impact (2024 study estimates)
- Revenue if repealed — local ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Revenue if repealed — state ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Taxpayer savings — local ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Taxpayer savings — state ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
CTI = confidential taxpayer information · D = unable to disclose
From the 2024 DOR Tax Exemption Study
84.36.635 - Anaerobic digesters Description All buildings, machinery, equipment, and other personal property which are used primarily for the operation of an anaerobic digester, the land upon which this property is located, and land that is reasonably necessary in the operation of an anaerobic digester are exempt from property tax. Applications for anaerobic digesters must be filed by December 31, 2024. The exemption is valid for six years and may not be renewed. Purpose Encourages the use of anaerobic digesters to promote renewable natural gas. Taxpayer ($ in millions): savings FY 2024 FY 2025 FY 2026 FY 2027 State Taxes $0.000 $0.000 $0.000 $0.000 Local Taxes $0.000 $0.000 $0.000 $0.000 Repeal of Repealing a property tax exemption would not increase state revenues. A repeal exemption shifts the state property tax to the currently exempt taxpayers and reduces the tax burden of other taxpayers. It may decrease the local rate and possibly result in local taxing districts at their statutory maximum rate experiencing a revenue increase. Potential ($ in millions): revenue gains FY 2024 FY 2025 FY 2026 FY 2027 from full repeal State Taxes $0.000 $0.000 $0.000 $0.000 Local Taxes $0.000 $
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This is reference data from the 2024 study — not advice, and 2025–26 legislation may have changed it. Three ways to go deeper: