Can I still register online if the system will not accept my address?

No, addresses that do not receive mail, have been newly added, or were recently annexed may not be validated by the United States Postal Service. In these instances, you cannot register using these addresses as permanent locations on the MyTax Illinois business registration application.

Alternative options for registering your business are:

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