The Department of Public Expenditure and Reform is a government body in Ireland responsible for overseeing public spending and ensuring efficient use of resources. Its main functions include budget management, financial accountability, and promoting transparency in government operations. Additionally, the department works on reforming public services to improve efficiency and effectiveness. It aims to enhance the delivery of services to citizens while ensuring that taxpayer money is spent wisely. The department also collaborates with other government agencies to implement policies that support economic growth and public welfare.