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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.
Forms & publications
Forms
Browse all forms by: name or subject
Top picks
Business license
- Business License Application (PDF)
- Business information change form (PDF)
- Confidential License Information Authorization (CLIA) (PDF)
Tax
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Warning: to protect against the possibility of others accessing your confidential information, do not complete these forms on a public workstation.
Income tax forms
The State of Washington does not have a personal or corporate Income Tax. For federal income tax forms, visit the Internal Revenue Service (IRS).