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Washington State, Department of Revenue, Business tax 2026
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- Click ‘Get Form’ to open the Washington State, Department of Revenue, Business tax form in the editor.
- Begin by entering your Account ID and business name in the designated fields. Ensure that you use black ink if filling out a physical copy.
- Fill in your street address, city, state, and ZIP code accurately. If there are any address changes, note them in the provided section.
- Indicate your tax classification and check the box if your business is closed. Provide the date of closure if applicable.
- Complete Section I for Business and Occupation Tax by entering gross amounts and deductions for each line item as per your business activities.
- Proceed to Section II for State Sales and Use Tax. Fill in the gross amounts and deductions as required.
- Review all entries for accuracy before signing at the bottom of the form. Ensure you include your phone number and print name.
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Related links
Feb 1, 2018 Use Form 7004 to request an automatic extension of time to file certain business income tax, information, and other returns.
This rule explains the business and occupation (BO) tax credit for small businesses provided by RCW 82.04.4451.Read more
The BO tax is a gross receipts tax in Washington state. It is calculated on the total value of products sold or the total income the business earns.Read more