Among the criteria that lenders use to determine your eligibility for a mortgage loan is your debt-to-credit (DTC) ratio. According to Equifax, one of three major credit reporting entities used by lenders, landlords, credit card companies, employers, and others, debt-to-credit is the amount you owe across all revolving accounts compared to the amount of revolving credit available to you. This is one component that comprises 30% of your total credit score, and it includes your payment history, how many credit accounts you’ve got and what types of credit they are.