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Revenue will work with businesses that cannot file or pay their taxes on time due to the recent flooding in Washington state. Learn more about disaster relief resources available for flood-impacted businesses and individuals.
Education
Industry guides
To help you better understand the tax obligations for specific industries, we've created online guides.
Events & workshops
Whether you’re a new business or you’ve been around for a while, check out our tax basics workshops.
Watch a video
Can’t attend a workshop in person? Watch one of our online workshops or tutorials.
Audits
The Department of Revenue routinely audits businesses to determine whether state excise taxes were reported and paid correctly. Learn more about the audit process and how to prepare for an audit.