ANNUAL PERCENTAGE RATE (APR) This is not the note rate on your loan. It is a value created according to a government formula intended to reflect the true annual cost of borrowing, expressed as a percentage. It works sort of like this, but not exactly, so only use this as a guideline: deduct the closing costs from your loan amount, then using your actual loan payment, calculate what the interest rate would be on this amount instead of your actual loan amount. You will come up with a number close to the APR. Because you are using the same payment on a smaller amount, the APR is always higher than the actual noted rate on your loan.