By CalculatorInn Team · Updated: 2026-03-22 · Free & accurate · Instant results
Determine the maximum home price you can afford based on your annual income, monthly debts, down payment, interest rate, and desired debt-to-income ratio.
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Max Home = Max Loan + Down Payment; Max Loan = MaxPayment × ((1+r)^n − 1) / (r × (1+r)^n)
Maximum monthly payment is determined by your DTI limit (typically 36%) minus existing debts. The loan amount is derived from the maximum payment you can afford at the given interest rate and term.
With a $100k salary, no other debts, and a 36% DTI ratio, you can typically afford a monthly mortgage of about $3,000, which translates to roughly a $475k-$525k home depending on rate and down payment.
The 28/36 rule says your mortgage payment should not exceed 28% of gross monthly income, and total debts should not exceed 36%. Most lenders use these as guidelines for loan approval.
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