Part IV - Other ALE Members of an Aggregated ALE Group
If you checked "Yes" on Line 21, indicating that you were a member of an Aggregated ALE Group for any month of the calendar year, you must complete Part IV of Form 1094-C.
In Part IV, use lines 36-65 to enter the names and EINs of the other Aggregated ALE Group members. If there are more than 30 members in your aggregated group, enter the 30 with the highest monthly average number of full-time employees. List only 30 members in descending order, beginning with the ALE member with the highest average monthly number of employees.
A valid EIN is required at the time Form 1094-C is filed. If a valid EIN is not provided for any of the ALEs listed on Form 1094-C, the form will not be processed. You can apply online for an EIN at www.irs.gov, or by faxing or mailing Form SS-4 to the IRS.