The interest rate you pay on your home mortgage has a direct impact on your monthly payment. The higher the rate the greater the payment will be. That is why it is important to look at where rates are headed when deciding to buy now or wait until next year. Below is a chart created using Freddie Mac’s February 2015 U.S. Economic & Housing Marketing Outlook. As you can see interest rates are projected to increase steadily over the course of 2015.