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Home / File & pay / Before I file
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Before I file

Tax classifications

Tax classifications are based on what type of business you conduct. Check out 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.

More information

  • Common business activities
  • Credits
  • Deductions
  • Industry guides
  • Instructions to complete my return
  • Tax Rate Lookup Tool

Forms & publications

  • Excise tax returns
  • List of Local Sales & Use Tax Rates

More information

  • Common business activities
  • Credits
  • Deductions
  • Industry guides
  • Instructions to complete my return
  • Tax Rate Lookup Tool

Forms & publications

  • Excise tax returns
  • List of Local Sales & Use Tax Rates
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Before I file

Filing frequencies & due dates

File or amend my return

Report no business activity

Late filing

Reviews and appeals

Apply for a tax refund

Doing business

Business types

Register my business

My account

Audits

Find taxes & rates

Sales & use tax rates

Tax incentives

Business & occupation tax

Retail sales tax

Use tax

Property tax

Other taxes

Income tax

Education

Attend a workshop in your area

Watch an online workshop or tutorial

Invite a speaker to your group 

Request a visit from a tax consultant

Forms & publications

Forms by name

Forms by subject

Publications by name

Publications by subject

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