Dear Liz: My wife and I recently paid off our mortgage. We have no other debt. Soon after, I received a message from Experian that my FICO score, which has been perfect for quite a while, was reduced by 31 points. What justifies such action, and what do I need to do to bring up my score?
Answer: Credit scores were never intended to be a measure of anyone’s financial health. Instead, they were created to help lenders gauge the risk that an applicant would default on a loan or credit card debt.
Having a mix of types of credit, including installment loans (such as a mortgage) and revolving accounts (such as credit cards), generally helps your credit score. Because the mortgage was your only installment loan, that could have led to a larger-than-normal effect on your scores.