“I regularly work with clients who don’t understand the APR,” says Todd Huettner of Huettner Capital in Denver. “If they don’t have questions about the APR or the Truth in Lending disclosure, where the APR is calculated, I know they simply didn’t read it.”

### Interest rate and APR

The interest rate is the cost of borrowing the principal loan amount. It can be variable or fixed, but it’s always expressed as a percentage.

The APR is a broader measure of the cost of your mortgage because it reflects the interest rate, as well as other costs such as broker fees, discount points and some closing costs. The APR is also expressed as a percentage.

## Why have both?

“The main difference is that the interest rate calculates what your actual monthly payment will be,” says Sean O. McGeehan, a mortgage sales manager in Chicago. “The APR calculates the total cost of the loan. A consumer can use one or both to make apples-to-apples comparisons when shopping for loans.”

For example, a loan with a 4% rate will have a lower monthly payment than a loan with a 6% rate, assuming both are fixed for the same term. Likewise, the total cost of a loan with a 4% APR will be less than one with a 6% APR.

## Where it gets tricky

Separately, the interest rate and the APR have their limits. But together, borrowers should be able to use both figures to determine their monthly payments, as well as their total costs. The trick, says McGeehan, is to understand the interplay between the 2 figures.

“If a consumer is only focused on getting the lowest monthly payment, they should focus on the interest rate,” says McGeehan. “But if the consumer is focused on the total cost of the loan, then they can use the APR as a tool to compare the total cost of 2 loans.”

Source: Michael Estrin – Bankrate.com