Most times, there are too many variables to consider having a hard and fast rule about debt to income ratio. Your lifestyle needs to play a factor when making a decision. Your total household income impacts various loan programs. And while it’s important to evaluate current monthly expenses, true income, versus qualifying income, along with your financial reserves should be considered. Overall, while debt to income ratios are a critical component when qualifying for a mortgage loan, isolating this variable and capping the ratio at 30 percent is many times not the correct approach. Learn about mortgage money. Ask us how.