Debt-to-income ratio, often called DTI, is one of the common factors lenders may review when evaluating a mortgage application. It compares your monthly debt payments to your gross monthly income.
How debt-to-income ratio works
DTI helps show how much of your monthly income is already committed to debt payments. A lower DTI may suggest more room in your budget for a mortgage payment, while a higher DTI may limit available options.
Simple example: If your gross monthly income is $8,000 and your monthly debt payments are $2,400, your DTI is 30%.
What monthly debts may be included?
- Credit card minimum payments
- Auto loans
- Student loans
- Personal loans
- Existing mortgage payments
- Home equity loans or HELOC payments
- Child support or alimony, if applicable
- Other recurring debt obligations
Want to estimate what options may fit your income and debt profile?
What may not be included?
Every lender and loan program can review expenses differently, but common household expenses like groceries, utilities, phone bills, subscriptions, and insurance premiums may not always be included in the DTI calculation unless tied to a debt obligation.
Front-end vs. back-end DTI
Front-end DTI usually focuses on housing-related payments, such as principal, interest, taxes, insurance, and possibly HOA dues. Back-end DTI includes housing payments plus other monthly debts.
Why DTI matters for buyers and homeowners
- It may affect how much home you can afford
- It may influence loan program eligibility
- It can affect refinance options
- It may impact HELOC or home equity borrowing capacity
- It helps lenders evaluate repayment ability
How borrowers may improve DTI
- Pay down revolving balances
- Reduce monthly debt obligations
- Avoid taking on new debt before applying
- Increase documented income where possible
- Consider a different price range or loan amount
- Review loan term options