State Tax Day - Current, S.22, Washington—Sales and Use Tax: Guidance on Self-Produced Fuels Updated, (Sep 29, 2026)
The Washington Department of Revenue has updated guidance on the applicability of sales and use tax and business and occupation (B&O) tax to self-produced fuels. The use tax value of refinery fuel gas for the period of October 1, 2026 through December 31, 2026 is $3.01 per million Btu.
ETA 3014.2026, Washington Department of Revenue, September 23, 2026