The speaker reviews a common mortgage qualification ratio, the debt to income ratio. He mentions that debt to income ratios measure your debts in terms of your gross income. Different loan programs require different DTI ratios to qualify. Many loan programs follow a 29/41 ratio qualifier. This means that 29% of your gross income can be used to pay your monthly mortgage payment, while 41% of your gross income can be used for your mortgage and all your other debts. The 29/41 is the FHA loan recommendation, but other loan types can have different standards.