홈 | Washington Department of Revenue

Important! Disaster Relief

Revenue will work with businesses that cannot file or pay their taxes on time due to the recent flooding in Washington state. Learn more about disaster relief resources available for flood-impacted businesses and individuals.

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New rules for reusable bag fees

From delayed thickness requirements to a new 4-cent state penalty on certain plastic bags, make sure your business is prepared for the shift. Changes to Reusable Bag Fees start January 1, 2026.

Services newly subject to retail sales tax

Engrossed Substitute Senate Bill (ESSB) 5814 added new business activities to the definition of retail sales. This means businesses must begin collecting sales tax on these services on October 1, 2025.