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Home / Open a business / Apply for a business license / Plan for taxes
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Plan for taxes

Filing tax returns

Once you have registered your business you will receive a letter from the Department of Revenue with your UBI/account ID number and filing frequency.

You must file and pay excise taxes electronically. For more information, visit our mandatory e-file page.

Businesses who have received a waiver from the mandatory e-file/e-payment requirement

If your business has received a waiver, keep in mind:

  • Pre-printed returns will be mailed 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 and pay your taxes is online using My DOR.
 

Plan for and pay your taxes

Watch a video to help plan for your business taxes.


Tax classifications

Tax classifications are based on what type of business you conduct. Check our classification definitions to see which one(s) your business falls under.


Tax classifications for common business activities

See our list of the most common business activities, the tax classifications they fall under, and other helpful information.


Sales tax rates

Use our Tax Rate Lookup Tool to find tax rates for any location in Washington. Search by address or use the map to find the rate for a specific location.


Register and pay back taxes

If you have been doing business in Washington and are not registered with the Department of Revenue, you can come forward voluntarily under the Voluntary Disclosure Program.

More information

  • My DOR Instructions
  • Set up an account
  • Business tax basics workshop
  • Common business activities
  • Credits
  • Deductions
  • Nonprofit organizations
  • Out-of-state businesses
  • Active non-reporting
  • Lookup a tax rate
  • Instructions to complete a paper return

Forms & publications

  • Business tax basics (pdf)
  • Excise tax returns
  • List of Local Sales & Use Tax Rates

More information

  • My DOR Instructions
  • Set up an account
  • Business tax basics workshop
  • Common business activities
  • Credits
  • Deductions
  • Nonprofit organizations
  • Out-of-state businesses
  • Active non-reporting
  • Lookup a tax rate
  • Instructions to complete a paper return

Forms & publications

Business tax basics (pdf)

Excise tax returns

List of Local Sales & Use Tax Rates

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Open a business

Get started

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Plan for taxes

Manage a business

Run

Grow

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

Industry guides

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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  • Department of Revenue YouTube channel

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