Use our free debt-to-income (DTI) calculator to see where your DTI stands against typical loan program limits. DTI is one of the biggest factors lenders weigh when they review a loan, set the amount you can carry, and price your rate. We compute both your front-end (housing-only) and back-end (total debt) DTI and compare them with typical Conventional, FHA, VA and USDA limits. See your number, learn what it means for a conventional loan, FHA loan, or VA loan, then run our home affordability calculator.
Total before taxes & deductions
Includes Principal, Interest, Taxes, Insurance & HOA
Count only the minimum monthly payments that appear on your credit report, plus alimony or child support. Utilities, groceries and car insurance are not included.
Standard max is 45%, but strong credit and reserves can push it to 50%.
Flexible. Depending on the overall file, DTI can go as high as 57% with the right compensating factors in place.
The standard guideline sits around 41%, but a file can stretch to 55% when there's strong residual income and it runs through automated underwriting.
Manual underwriting is stricter, typically capped at 29/41, though automated underwriting can sometimes go slightly beyond that range.
Online calculators only give you a rough idea. A loan officer looks at how your income is counted (bonus, overtime, self-employment), which program fits, and which debts matter most. Our complete pre-approval guide walks through the whole flow.
Lenders get cautious as your back-end DTI approaches 50%. The good news is there are ways to improve your ratio before you apply, and our breakdown on paying off debts during underwriting covers what helps and what backfires.
It is not about how much you owe; it is about what you pay monthly. For example, paying off a $5,000 car loan with a $400/month payment will improve your DTI much more than paying off $5,000 in student loans with a $50/month payment. Our mortgage payoff calculator shows how extra principal adds up over time.
Adding a spouse or another co-borrower can make a big difference. Their income gets added into the equation, which helps offset the total debt and can lower your overall DTI. Their debts count too.
Buying down your rate, either out of pocket or through seller concessions, can reduce your monthly mortgage payment. That lowers both your front-end and back-end ratios. Use our monthly payment calculator to compare scenarios. Investors with non-traditional income should look at the DSCR loan route.

Not sure what counts as income or debt? A loan officer can walk you through it based on your situation.
Compliance Note: This DTI calculator gives you an estimate based on the information you enter. Actual lender calculations may vary depending on underwriting guidelines, how income is calculated (including rental or variable income), and how debts are evaluated through automated systems. This is not a commitment to lend or a loan approval.