Does any one know if paying off your mortgage and carring no debt adversely changes your credit ratings? I have heard it does. I understand Geico and other insurance companies use credit ratings in assessment of insurance risk and therefore premium cost. How ironic that being more financially responsible would increase your rates. I also read that the insurers came under attack from the feds for using credit ratings in this way as a backdoor type of discrimination, as theoretically, poor and less advantaged people would have worse credit ratings....I'm not making that up.