What Drives Mortgage Interest Rates How Do Mortgage Interest Rates Work Whats A Interest Rate APR vs Interest Rate: What's the Difference? | Experian – The Prime Rate is the lowest interbank interest rate which banks can borrow money at commercially, and its the basis for most credit card interest rates. The difference between an interest rate and an APR may be good to know for many types of loans, but when it comes to your credit card, there’s no.The Factors That Determine Your Mortgage Interest Rate – When you take out a mortgage to buy. down payment means a lower interest rate, because lenders see a lower level of risk when you have more stake in the property. So if you can comfortably put 20.Interest Rates Last 20 Years Historical mortgage rates: averages and Trends from the 1970s. – Over the past 48 years, interest rates on the 30-year fixed-rate mortgage have ranged from as high as 18.63% in 1981 to as low as 3.31% in 2012. Mortgage rates today remain at historical lows, with over 60% of mortgage holders paying rates between 3.00% and 4.90% as of 2015.