Debt-to-Income Calculator

Your debt-to-income ratio (DTI) is one of the most important numbers lenders evaluate when you apply for a mortgage or personal loan. It measures how much of your gross monthly income goes toward recurring debt obligations. There are two types of DTI that lenders consider. Your front-end DTI (also called the housing ratio) includes only housing-related costs such as your mortgage payment, property taxes, homeowners insurance, and HOA dues. Your back-end DTI includes all monthly debt obligations — housing costs plus car loans, student loans, credit card minimums, and any other recurring debts. Conventional loans typically require a back-end DTI below 36%, though many lenders will approve borrowers up to 43% if they have strong compensating factors like a high credit score, substantial cash reserves, or a large down payment. FHA loans generally allow a back-end DTI up to 43%, and in some cases up to 50% with automated underwriting approval. VA loans have no hard DTI cap set by the Department of Veterans Affairs, but most lenders use 41% as a guideline and require a residual income test for ratios above that threshold.

How to Lower Your DTI Ratio

If your DTI is higher than you would like, there are several practical strategies to bring it down before applying for a loan. Start by paying down revolving debt, especially credit cards, since eliminating a credit card balance removes its minimum payment from your DTI calculation entirely. Avoid taking on any new debt — such as financing a car or opening a new credit card — in the months leading up to a mortgage application. Increasing your income is another effective approach, whether through a raise, a side job, or adding a co-borrower whose income will be counted alongside yours. As a rough rule of thumb, every $100 you reduce in monthly debt payments is roughly equivalent to qualifying for an additional $15,000 in mortgage borrowing power (assuming a 30-year fixed rate around 7%). Even small changes, like paying off a $200/month car loan, can meaningfully shift your DTI and open up better loan options.

What Counts (and Doesn't Count) in DTI

One of the most common points of confusion is which expenses lenders actually include in your DTI calculation. Debts that are included: mortgage or rent payments, auto loans, student loans, credit card minimum payments, personal loans, alimony, and child support obligations. Debts that are not included: utilities (electric, water, gas), groceries, health insurance premiums, car insurance, streaming subscriptions, cell phone bills, and general living expenses. It is also important to understand that lenders use the minimum required payment shown on your credit report, not the amount you actually pay each month. If your credit card minimum is $35 but you pay $500, the lender counts only $35 toward your DTI. Conversely, if you are on an income-driven student loan repayment plan with a $0 monthly payment, some loan programs will impute a payment of 0.5% to 1% of the outstanding balance for DTI purposes.