Debt-to-Income Ratio Calculator
Calculate your DTI ratio to understand how lenders view your debt load and improve your chances of loan approval.
Understanding Your Debt-to-Income Ratio
Your debt-to-income ratio (DTI) is one of the most important numbers lenders use to evaluate your ability to manage monthly payments and repay borrowed money. It compares your total monthly debt payments to your gross monthly income, expressed as a percentage.
How DTI Is Calculated
DTI is calculated by dividing your total monthly debt payments by your gross monthly income, then multiplying by 100. For example, if you pay $2,000 per month in debts and earn $6,000 gross, your DTI is 33.3%. Lenders look at two versions: front-end (housing costs only) and back-end (all debts).
Why DTI Matters for Loans
Most conventional mortgage lenders require a back-end DTI of 43% or less, with 36% being preferred. FHA loans may allow up to 50% in some cases. A lower DTI means you're a less risky borrower, which can qualify you for better interest rates and higher loan amounts. Even outside of mortgages, auto lenders and personal loan providers use DTI to assess creditworthiness.
How to Improve Your DTI
You can lower your DTI two ways: reduce debt or increase income. Pay off smaller debts first using the debt avalanche or snowball method. Avoid taking on new debt before applying for a mortgage. If possible, increase your income through raises, side work, or adding a co-borrower. Refinancing existing loans to lower monthly payments can also help, though it may extend your repayment timeline.
Frequently Asked Questions
What is a good debt-to-income ratio?
A DTI below 36% is generally considered good by most lenders. Below 28% is excellent. Between 36-43% is acceptable for some loans but may limit your options. Above 43% is considered high risk and most conventional mortgages won't be approved.
What is the difference between front-end and back-end DTI?
Front-end DTI (or housing ratio) only includes housing costs — mortgage, property tax, insurance, and HOA fees. Back-end DTI includes all monthly debt obligations. Lenders typically want front-end DTI below 28% and back-end DTI below 36%.
Does DTI affect my credit score?
DTI does not directly affect your credit score. However, high debt levels often correlate with high credit utilization, which does impact your score. Lenders look at both your credit score and DTI separately when evaluating loan applications.
What debts are included in DTI calculations?
Include all recurring monthly debt payments: mortgage or rent, car loans, student loans, credit card minimums, personal loans, child support, and alimony. Do not include utilities, groceries, insurance premiums, or subscriptions — those are expenses, not debts.