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Starting October 1: Some business services are now subject to retail sales tax, as required by state law, ESSB 5814. When you buy these services, vendors should add sales tax to your bill. If you sell these services, you should begin collecting retail sales tax. Learn more about Services newly subject to retail sales tax.
Forms by name: A
A
How to submit your forms electronically
- 520 Bridge Project Application for Sales and Use Tax Deferral
- Addendum, Agriculture
- Addendum, Architect Firm
- Addendum, Clean Alternative Fuel Passenger Vehicle Leases and Sales
- Addendum, Commercial Telephone Solicitor
- Addendum, Dairy, Fresh Fruit/Vegetable, and Seafood Manufacturers
- Addendum, Energy Efficient Commercial Equipment Credit
- Addendum, Fish Tax
- Addendum, For Hire
- Addendum, Limousine Carrier Chauffeur
- Addendum, Local Sales and Use Tax
- Addendum, Lodging
- Addendum, Prepaid Wireless Taxes (911 & 988 Crisis Line)
- Addendum, Private Investigator Agency/Principal Endorsement
- Addendum, Public Utility Tax
- Addendum, Rental Car Tax
- Addendum, Scrap Metal
- Addendum, Sellers of Travel
- Addendum, Underground Storage Tank
- Addendum (and instructions), Vehicle Dealer/Manufacturer
- Aerospace Credit for Aerospace Product Development Spending for Manufacturing of Commercial Airplanes, Components, or Aerospace Tooling (For expenditures made between January 1, 2008 and December 31, 2008)
- Aerospace Credit for Aerospace Product Development Spending by Non-Manufacturers (For expenditures made between January 1, 2008, and December 31, 2008)
- Aircraft Prototype Refund
- Airline Companies, Public Utilities Annual Report for Small Domestic (Less Than 10 Aircraft) and Fractional Airplane Companies of Any Size
- Affidavit, Non-Resident Out-of-State Vessel Repair
- Affidavit of Cooperative Housing or Life Estate for Senior Citizens Exemption
- Affidavit Substantiating Decedent's State of Domicile at Death
- Agriculture Commodity Shipped to Interstate & Foreign Destinations, Certificate of
- Agriculture Addendum
- Annual Reconciliation of Apportionable Income
- Annual Reports, Public Utility
- Annual Tax Performance Report Worksheet
- Note: Online filing is required
- Annual Tax Performance Report for Preferential Tax Rates/Credits/Deductions/Exemptions
- If you have questions about filing or completing this report, please refer to the instructions at the end of the form or call the Taxpayer Account Administration division at 360-705-6210.
- Appeal Petition Manufactured/Mobile Home Parks
- Appeal Review of Initial Order, Brief Adjudicative Proceeding
- Appeal - Settlement Offer
- Applications
- Application and Certification for Extension of Special Valuation on Improvements to Historic Property
- Application for Refund on Machinery and Equipment for Manufacturing, Research and Development, or a Testing Operation
- Application for Refund or Credit for Sales Tax and Use Tax Paid (Used by Businesses)
- Approval or Denial of Application for Classification as Designated Forest Land, Notice of
- Approval or Denial of Application for Classification as Farm and Agriculture Land, Notice of
- Assessment Roll Correction Agreement Based on a Change of Land Use Designation
- Assessor's Answer to Personal Property Petition to the County Board of Equalization
- Assessor's Answer to Petition Appealing Current Use or Designated Forest Land Assessment Valuation or Removal from a Current Use Classification or Forest Land Designation
- Assessor's Answer to Real Property Petition
- Assessor's Certificate of Assessment Rolls to County Board of Equalization
- Assessor's Certificate of Real Property Assessment Roll to County Board of Equalization
- Assessor's Certificate of Personal Property Roll to County Board of Equalization
- Assessor's Response to Request for Review of Application Denial for Farm and Agricultural Land Classification and Forest Land Designation
- (Audit) Pre-Consultation Visit Questionnaire
