On or before April 15 of each year, every nonprofit, tax-exempt organization engaged in operating bingo games shall file with the director a report disclosing all receipts and expenditures relating to the operation of bingo games in the previous year. The report shall be in addition to all other reports required by law. The report shall be prepared and signed by a certified or registered public accountant competent to prepare such a report and shall be deemed a public record subject to public inspection.