The Washington State Department of Revenue is offering disaster relief resources to businesses and property owners affected by recent flooding across the state, including communities in South King County.
According to the Department of Revenue, businesses impacted by flooding that are unable to file and pay excise tax returns on time may request a filing extension before the deadline. The agency can also provide penalty waivers for qualified businesses that were unable to request an extension before taxes were due.
Property owners whose properties were damaged or destroyed by flooding may apply to their County Assessor to reduce the taxable value of those properties. Qualified property owners may see reductions to their 2025 property taxes and potentially their 2026 property taxes based on the loss in value caused by flood damage, the department said.
“It’s important that the people know the Department of Revenue is ready to help them navigate these difficult times,” Acting Director John Ryser said.
In addition to these resources, businesses impacted by the flooding can also request:
- An application for credit for damaged timber for forest taxes.
- Reschedule of a planned audit or hearing.
- A waiver of Revenue’s penalties for qualified businesses unable to renew their business license on time.
- An extension of its expiring resellers permit.
The Department of Revenue is also offering assistance to counties affected by flooding to help manage changes in property values and the resulting impacts on local levies and property tax bills.
More information about disaster relief resources is available on the Department of Revenue website here. Those with questions can contact the agency’s customer service staff at (360) 705-6705.




