What does the certificate of registration look like?

Our current Certificate of Registration, also known as Illinois Business Authorization, is blue with an image of Illinois in the background.

The following information is printed on your certificate of registration:

  • Illinois account ID or license number
  • Business name
  • Doing business as (DBA) name, if applicable
  • Address
  • Location code, if applicable
  • Issued date
  • Registration expiration dates, if applicable
  • The tax for which the certificate is issued

When it is mailed to you, your Certificate of Registration is accompanied by a “Taxpayer Notification, Business Authorization” cover letter.

If you have additional inquiries, you may submit them to the Questions, Comments, or Request form.