My DOR help
Learn the basics of our secure portal, My DOR, including how to file a basic tax return.
Watch My DOR video tutorials.
Administrative review and hearings process
This video series provides an overview of the appeals process.
Watch the administrative review and hearings process video series.
Tax information for the construction industry
To properly report tax, construction businesses need to understand Washington's business tax system and general application of Business and Occupation (B&O) tax classifications, retail sales tax, and use tax. This video will help those engaged in construction activities determine their state tax liability.
Watch construction industry video
How to prepare for an audit
If you're facing an audit, or just want to know more about audits, this video will give you information about what to expect before, during, and after an audit by the Departments of Revenue, Labor & Industries, and Employment Security.
Watch how to prepare for an audit video
Plan for and pay your taxes
Just getting started with your new business? This multiagency video is no longer available. Instead you’ll find a list of resources to assist you with basic information on how to plan for, file, and pay your Washington State taxes for the Departments of Revenue, Labor & Industries, and Employment Security.
Plan for and pay your taxes resources
What is use tax?
Do I owe use tax?
What is subject to sales tax?
Personal property tax
Understand your tax obligations.
Watch our Personal property tax video
Simple answers to your tax questions.
Watch our Nonprofit video