The average annual percentage rate (AAPR) wraps up interest payments and fees and expresses all these costs in one rate. It is designed to reflect the total annual cost to a borrower of a loan. All lenders must disclose this benchmark rate in their advertising of home loans and personal loans from July 2003. In Australia, the AAPR is officially called the ‘Comparison Rate'. See ‘Comparison Rate' for details on how this is calculated.