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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

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How do I verify a resale number is valid and active?

Account ID, FEIN, and License Numbers can be verified at MyTax Illinois by selecting the "Verify a Registered Business" link in the "Searches" panel. This system allows you to inquire whether a business is registered with the Illinois Department of Revenue and how that business is registered with IDOR.

If you have additional inquiries, you may submit them on the Questions, Comments, or Requests form.