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Home / Open a business / New business information
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New business information

To register your business, use the My DOR online business licensing system. After you’ve filed your application, you will receive a business license and Unified Business Identifier (UBI) number from the Business Licensing Service.

You will also receive a letter from the Department of Revenue with your UBI/account ID number and filing frequency.

To learn more about doing business in Washington, visit Business.wa.gov.

Filing tax returns

All monthly and quarterly filers must file and pay their excise taxes electronically. For more information, visit our mandatory e-file page.

For taxpayers who are not required to file and pay electronically:

  • Pre-printed returns are mailed about four weeks before the due date.
  • The due date is printed on your tax return.
  • You are required to file and pay taxes by the due date even if you do not receive a tax return.
  • If the due date falls on a weekend or legal holiday, the due date for the return is the next business day.
  • Your nine-digit Account ID  is printed above your name and address on the tax return. Write this number on:
    • the deduction detail pages (if reporting deductions on your tax return)
    • any related forms
    • your check

The easiest way to file

File and pay your taxes online using My DOR.

Helpful information

  • Business tax basics (pdf) - Overview of Washington's business taxes and reporting requirements.
  • Business tax basics workshop - Learn the basics of Washington State taxes and your tax reporting responsibilities.
  • Industry specific guides - To help you better understand the tax obligations for specific industries.
  • Nonprofit organizations - See special exemptions that may apply to your business.
  • Out-of-state businesses - Learn about your Washington State tax liability.
  • Active non-reporting - If you qualify, conduct business without filing tax returns.
  • Tax consultation service - Request a representative to visit your office and explain how state taxes apply to your business.

More information

  • My DOR - online business licensing
  • Small Business Guidance (Business.wa.gov)
  • How to get licensed (Business Licensing Wizard)
  • Attend a workshop in your area
  • Request a visit from a tax consultant
  • Watch an online workshop or tutorial

Forms and publications

  • Business License Application (pdf)

More information

  • My DOR - online business licensing
  • Small Business Guidance (Business.wa.gov)
  • How to get licensed (Business Licensing Wizard)
  • Attend a workshop in your area
  • Request a visit from a tax consultant
  • Watch an online workshop or tutorial

Forms and publications

  • Business License Application (pdf)
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Open a business

Get started

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Manage a business

Run

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Close

 

Taxes & rates

Sales & use tax rates

Tax incentives

Business & occupation tax

Retail sales tax

Use tax

Property tax

Other taxes

Income tax

File & pay taxes

Filing frequencies & due dates

File or amend my return

Report no business activity

Late filing

Reviews and appeals

Apply for a tax refund

Education

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Events and workshops

Watch a video

Audits

Forms & publications

Forms by name

Forms by subject

Publications by name

Publications by subject

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