Updates to Washington’s Plastic Bag Ban Coming in 2026

Washington State has adopted several changes to the single-use plastic bag law that will take effect January 1, 2026. These updates, passed under ESHB 1293 during the 2025 session, adjust fee requirements, clarify standards, and extend the transition timeline for retailers and restaurants.

Beginning next year, the charge for plastic film carryout bags will increase to 12 cents. Large paper bags will continue to require an 8 cent fee. Small paper bags may still be offered with or without a charge. For plastic film bags that are 4 mil or thicker, an additional 4 cent penalty will apply from January 1, 2026 through December 31, 2027. This brings the total customer charge for those thicker bags to 16 cents, with the 4 cent penalty deposited into the state’s waste reduction, recycling, and litter control account.

The minimum thickness requirement for plastic film bags will remain at 2.25 mil until January 1, 2028. The planned increase to 4 mil has been delayed by two years. All qualifying plastic film bags must continue to contain at least 40 percent post-consumer recycled content and display labeling that reflects this requirement along with the word “reusable.” Paper bags must also meet the 40 percent post-consumer recycled content or wheat straw standard and include appropriate labeling. Large paper bags are defined as 882 cubic inches or larger and must continue to be provided with the 8 cent fee.

Other permitted bag types remain the same. Plastic produce bags used within stores are still allowed at no charge. Compostable bags are permitted but are not widely accepted by commercial composting facilities in Washington, so businesses should verify acceptance with their local provider before offering them. Visit the Department of Ecology website for additional information and guidance.