My DOR and other online services will be down for maintenance from 5 p.m. PST Friday, January 17, 2025, to 8 a.m. PST Tuesday, January 21, 2025.
My DOR and other online services will be down for maintenance from 5 p.m. PST Friday, January 17, 2025, to 8 a.m. PST Tuesday, January 21, 2025.
Automated Compliance System and Outstanding Return System (ACS/OSR) Manual | Staff manual |
Answer Manual | Explanation of common inquiries on the application of excise taxes |
Bankruptcy Manual | Procedures relating to tax collection in bankruptcy situations |
Estate Tax Desk Manual | Staff manual |
Exempt Property Policy Manual | Instructions relating to exempt property determinations |
Field Compliance Manual | Instructions and procedures for Compliance personnel |
Grain Elevator Appraisal Guide Property Tax | Valuation procedures for types of grain elevators |
Levy Manual Property Tax | Instructions on applications of levy statutes and rules |
Listing of Escheats Estate Tax | Names and data on decedents without heirs public record |
Listing of Unclaimed Property | Names and last known addresses of indicated owners of unclaimed property |
Mainstream Tax Processing Manual Taxpayer Account Administration | Staff manual |
Ratio Study Procedures Property Tax | Instructions on calculation of assessment ratios |
Tax Collection Process, The | Explains the compliance process to taxpayers |
Tax Discovery Officers Manual | Instructions to Tax Discovery Officers |
Trust Fund Accountability | Explains trust fund accountability |
Unclaimed Property Workbook-Business | |
Unclaimed Property Workbook-Financial | |
Unclaimed Property Workbook-Governmental | |
Use Tax Manual | Instructions and procedures regarding use tax |
Washington State Residency Definition | Defines when persons are considered residents of this state for sales and use tax purposes |
What is a tax warrant? | Explains warrant for unpaid taxes |