Washington Department of Revenue Forms & Publications
- business-tax-basics Business Tax Basics — Overview of Washington State Taxes
- clean-fuel-vehicle Clean Alternative Fuel Passenger Vehicle Leases and Sales — Form & Instructions
- dairy-fruitveg-seafood Dairy, Fresh Fruit/Vegetable & Seafood Manufacturers Addendum
- energy-eff-comm-credit Energy Efficient Commercial Equipment Credit Addendum
- estate-tax-add1 Estate Tax Addendum 1 — Qualified Terminable Interest Property (QTIP)
- estate-tax-add2 Estate Tax Addendum 2 — Property Used for Farming (Farm Deduction)
- estate-tax-add3 Estate Tax Addendum 3 — Qualified Family-Owned Business Interests (QFOBI)
- estate-tax-add4 Estate Tax Addendum 4 — Apportionment for Out-of-State Property
- estate-tax-instructions Washington Estate Tax — Filing Instructions
- lodging-addendum Lodging Addendum — Form & Instructions
- matc-schedule-c Multiple Activities Tax Credit (MATC) Schedule C
- natural-gas-use-tax Natural Gas Use Tax — Form & Instructions
- sbc-annual Annual Combined Excise Tax Return — Form & Instructions
- sbc-monthly Monthly Combined Excise Tax Return — Form & Instructions
- sbc-quarterly Quarterly Combined Excise Tax Return — Form & Instructions