Idaho State Tax Commission

Tax Clearance Certificate

A tax clearance certificate, also known as a "letter of good standing," confirms that a business has filed and paid in full all their taxes as administered by the Idaho State Tax Commission. Any existing business can request this certificate.

Requesting a certificate

You must make your request in writing. Include the following information:

  • Business name
  • Federal Employer Identification Number (EIN)
  • Full address
  • Name, title, and signature of the authorized representative making the request
  • Fax number, mailing address, or email* address where you want us to send your certificate to

Send your written request to:

Tax Clearance Certificate
Idaho State Tax Commission
PO Box 36
Boise ID 83722-0410

Please allow 30 days for a written response. We'll contact you if we have any questions about your request.

*You acknowledge that you accept any security risks involved in electronic communications if you choose to have the Tax Commission send the certificate to you by email.

Requesting a certificate be sent to a third party

You can have your certificate sent to a third party. To do this, write the request as instructed above. You'll also need to complete a Form STC-06, Request for Copies of Idaho Tax Returns.

  1. Complete the form through the "Requested Documents" section.
  2. In "Select Delivery Method," complete the "Representative" section, including the third party you want your certificate sent to.
  3. Mail both your request letter and the completed Form STC-06 to the address listed above.


Note: If you're buying an existing business, please read our Successors' Liability Clearance Letter guide.

Page last updated October 25, 2018. Last full review of page: October 25, 2018.

This information is for general guidance only. Tax laws are complex and change regularly. We can't cover every circumstance in our guides. This guidance may not apply to your situation. Please contact us with any questions. We work to provide current and accurate information. But some information could have technical inaccuracies or typographical errors. If there's a conflict between current tax law and this information, current tax law will govern.