On the surface, it makes no sense at all.
One borrower goes to get a mortgage, barely scraping together the minimum required down payment of 5%. Meanwhile, somebody else works their tail off and manages to save up enough to put 30% down. Not only are these two borrowers likely paying the same rate, but sometimes the borrower with 5% down will actually be paying a lower rate!
Let’s take a closer look at exactly why this happens.