As a rule of thumb, however, a credit score below 620 will make buying a home very difficult. A FICO score below 620 is considered sub-prime. In the past there were mortgage companies that specialized in sub-prime mortgages. Because of the challenges in the credit market over the last year or so, however, sub-prime loans have become difficult if not impossible to obtain.
A FICO score between 620 and 650 is considered fair to good credit. But keep in mind, this range of credit scores does not guarantee you will qualify for a mortgage, and if you do qualify, it won’t get you the lowest interest rate possible. Still, to buy a home aim for a score of at least 620, recognizing that other factors weigh in the decision and that some banks may require a higher score.