Healthy Poultry Assistance and Indemnification Act of 2023 This bill expands the Animal and Plant Health Inspection Service (APHIS) producer indemnity and compensation program to include compensation for all poultry growers and layers located in an APHIS-determined control area. Currently, APHIS provides indemnity and compensation to producers to remove animals classified as affected, suspect, or exposed to diseases of concern, including highly pathogenic avian influenza (HPAI). An APHIS-determined control area consists of both an infected zone and a buffer zone. Under the bill, APHIS must compensate all owners of poultry growing or laying facilities within a control area, which may include facilities that are located in the buffer zones and have non-infected poultry. Further, the bill establishes a new compensation payment formula that requires payments to be based on the owner’s average income from the five most recent flocks.