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Bill > SB5529


WA SB5529

WA SB5529
Amending the county population threshold for counties that may exempt from taxation the value of accessory dwelling units to incentivize rental to low-income households.


summary

Introduced
01/27/2025
In Committee
04/07/2025
Crossed Over
03/11/2025
Passed
04/22/2025
Dead
Signed/Enacted/Adopted
05/07/2025

Introduced Session

Potential new amendment
2025-2026 Regular Session

Bill Summary

AN ACT Relating to amending the county population threshold for 2 counties that may exempt from taxation the value of accessory 3 dwelling units to incentivize rental to low-income households; 4 amending RCW 84.36.400; amending 2023 c 335 s 2 (uncodified); 5 creating a new section; and providing an expiration date. 6

AI Summary

This bill amends existing property tax law to expand a tax exemption program for accessory dwelling units (ADUs) to additional counties, specifically targeting those with populations between 900,000 and 1,500,000 residents. The bill allows county or city legislative authorities in these counties to exempt the value of an ADU from property taxation if certain conditions are met, such as renting the unit to a low-income household (defined as households earning at most 60% of the county's median income), filing proper documentation, and ensuring the rent does not exceed 30% of the tenant's monthly income. The exemption applies for three assessment years and cannot be claimed more than once in a five-year period. For counties with populations over 1,500,000, existing rules continue to apply, allowing more flexibility in implementation. The bill requires legislative authorities to establish policies to support tenants when an exemption expires and mandates an independent review by the joint legislative audit and review committee to assess the program's effectiveness in increasing affordable housing. The tax preference is designed to incentivize homeowners to create and rent accessory dwelling units to low-income households, with the ultimate goal of expanding affordable housing options. The bill includes provisions for annual application, potential administrative fees, and includes an expiration date of January 1, 2034.

Committee Categories

Budget and Finance

Sponsors (1)

Last Action

Effective date 7/27/2025. (on 05/07/2025)

Taxonomy

Community Development and Housing Issues
  • ‐ Housing and Community Development for Low and Middle Income Persons
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=5529&Year=2025&Initiative=false 01/24/2025
Fiscal Note - 5529 ESB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=74591 02/03/2026
Fiscal Note - 5529 ESB (Partial) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=74477 02/03/2026
Fiscal Note - 5529 SB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=72348 02/03/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Session%20Laws/Senate/5529.SL.pdf 05/13/2025
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Passed%20Legislature/5529.PL.pdf 04/23/2025
Final Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5529.E%20SBR%20FBR%2025.pdf 04/16/2025
Engrossed House Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5529.E%20HBR%20APH%2025.pdf 04/16/2025
Engrossed House Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5529.E%20HBR%20FIN%2025.pdf 04/04/2025
Engrossed House Bill Analysis 2025 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5529.E%20HBA%20FIN%2025.pdf 03/21/2025
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/5529.E.pdf 03/12/2025
Engrossed Senate Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5529.E%20SBR%20APS%2025.pdf 03/12/2025
Gildon 5529 AMS GILD S2086.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/5529%20AMS%20GILD%20S2086.1.pdf 03/05/2025
Senate Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5529%20SBR%20WM%20OC%2025.pdf 02/17/2025
Senate Bill Report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5529%20SBR%20WM%20TA%2025.pdf 02/13/2025
Senate Bill Report (Orig.) https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5529%20SBA%20WM%2025.pdf 01/31/2025
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/5529.pdf 01/24/2025
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