In-depth guides and resources to help you make the most of the Debt-to-Income Calculator and master the underlying financial concepts.
Open Debt-to-Income CalculatorDebt-to-income ratio (DTI) is the primary metric lenders use to assess creditworthiness. It compares your monthly debt obligations to your gross monthly income. For mortgage qualification, most lenders require a front-end DTI (housing costs only) below 28% and a back-end DTI (all debts) below 43%, though FHA loans allow up to 50% with compensating factors. Knowing your DTI before applying for any loan lets you either optimize your application or negotiate from a position of strength.
These guides explain how lenders calculate DTI, which debts count (all installment and revolving minimum payments), which income qualifies (W-2 wages, self-employment with 2-year average, rental income at 75%), and why gross income rather than take-home pay is used. They cover strategies to improve DTI before a mortgage application: paying down revolving debt, avoiding new credit applications, and determining whether extra student loan or credit card payments produce the largest DTI improvement per dollar spent.
Understand front-end and back-end DTI ratios, how lenders use them in 2026, and the exact thresholds for Conventional, FHA, VA, and USDA loans.
Maximum debt-to-income ratios for every major mortgage program in 2026, side by side: conventional, FHA, VA, USDA, and jumbo, plus the compensating factors that let borrowers exceed the standard caps.
A step-by-step plan to reduce your debt-to-income ratio before a mortgage application, with a worked example showing which debt to pay off first for the biggest ratio drop per dollar.