Mortgage Qualification Calculator View Calculator Use this calculator to help you determine the most expensive house you would qualify for. Enter your monthly income, all monthly debt expenses (credit card payments, car payments, loan payments, and any other expenses), and information about your mortgage (down payment amount, loan term, interest rate, property tax rate, private mortgage insurance (PMI), and monthly association dues). This calculator will then show you the highest monthly payment you can afford and the highest priced home you can afford to keep your total monthly housing expenses less than 28% and your debt ratio less than 36% of your total gross monthly income. In general, most lenders do not want your total monthly housing expenses (including property taxes, private mortgage insurance (PMI), and association dues) to exceed 28% of your total gross monthly income. And your total debt ratio cannot exceed 36% of your total gross monthly income. Learn more about putting this calculator or other calculators on your website.