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Avalara Help Center

Find your company ID number

This article applies to:Avalara AvaTax Update

When you create a company in AvaTax, it's assigned a unique ID number to differentiate it from every other company created by users of AvaTax. Avalara Support or other Avalara teams may ask you for a company ID when they're troubleshooting problems or researching issues on your behalf.

To find a company ID number:

  1. Click Switch company and choose the company that you want to find the ID for
  2. Examine the web address after AvaTax has finished loading

Your AvaTax homepage web address is something like "" The ten digits following "a/" are your AvaTax account number, and the four to seven digits following "c/" are the ID number of the currently active company.

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