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Your application asks for a FEIN. How do I know if I need a FEIN?

A Federal Employer Identification Number (FEIN) is not required for all business types. If you are a sole proprietor, single-member LLC with no employees, or a foreign business located outside of the United States, you are not required to have a FEIN. All other businesses must request a FEIN from the IRS website, or contact them at 1 800-829-4933 with questions.

NOTE: If you are a single-member LLC and do not have a FEIN, you will need to complete the paper version of the Form REG-1, Illinois Business Registration Application.

You may access additional information by searching the entire Illinois Department of Revenue website.

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