Annual Percentage Rate (APR) - Definition

A yearly rate of interest that includes fees and costs paid to acquire the loan. Lenders are required by law to disclose the APR. The rate is calculated in a standard way, taking the average compound interest rate over the term of the loan, so borrowers can compare loans. In mortgages, it is the interest rate of a mortgage when taking into account the interest, mortgage insurance, and certain closing costs including points paid at closing. There is no APR in an automobile lease; instead, the cost of money is expressed as the money factor.