You might have to accept an one or two per cent above the normal good credit...The rate will depend on just how “bad” your credit is at the time of application. You can still get a fixed rate mortgage if you have bad credit. Getting a refinance mortgage loan is a smart move for any homebuyer. This is especially true if the interest rates are low. In the world of finance, interest rates directly affect the way mortgage rates behave. So if the interest rates are low, then mortgage rates will also be low.