For questions or comments, please call us at 773-561-7051 or fax us at 773-561-8673.

To report a lost or stolen ATM or Debit MasterCard, please call 1-800-554-8969 or 973-682-2652 if traveling internationally.

Written correspondence can be sent to:

North Side Federal Savings
5159 N Clark Street
Chicago, IL 60640