Qualify Mortgage Calculator

Lenders look at your debt-to-income (DTI) ratio to decide how much home loan you can carry. This calculator first finds the maximum monthly payment your income supports under your chosen DTI cap, then back-solves the standard amortization formula to reveal the loan principal that payment can finance.

Most U.S. lenders cap total DTI between 36% and 43%. Setting that cap here gives you a realistic ceiling before you start house hunting.

Enter your gross monthly income, current debt obligations such as car loans and credit card minimums, the interest rate you expect, your desired term and the DTI ratio you want to test. The calculator returns the maximum payment, the implied monthly mortgage and the loan principal that payment supports.

Run several scenarios. Try a conservative 28% DTI for safety, then 36% for the standard conforming cap, and finally 43% for the upper limit. You'll see how much extra borrowing power each tier unlocks — and how much risk it adds.

A 15-year loan dramatically lowers the maximum loan amount you can qualify for, but cuts lifetime interest in roughly half compared to a 30-year term. Try both terms here, then compare the amortization curve in our EMI calculator.

Rate volatility matters too. Run the numbers at a rate one or two points above today's market to stress-test affordability — if the payment still fits, you have a margin of safety.

Beyond DTI, qualification depends on credit score, employment stability and down payment. A higher credit score unlocks better rates, while a lower DTI increases the loan amount you can carry. Always include property taxes, insurance and HOA fees in your real budget — this calculator covers principal and interest only.

For mortgage education and lender-readiness tips, visit our blog. You can also compare repayment patterns with our amortization table calculator style EMI tool before applying.

Pay down revolving debts to lower your DTI before reapplying. Save for a 20% down payment to avoid PMI, lock your rate when markets favour buyers, and obtain a pre-approval letter to strengthen any offer you make.