How much mortgage can they afford? The annual combined gross income is $92,000. They pay car loans of $380, credit card debt of $125 and student loans of $215 each month. They have $15,000 saved for a down payment. Assume they would expect to get a mortgage at 4% to be repaid over 30 years. Homeowners' insurance is $60 monthly and real estate taxes are $400 monthly. Does the amount they can borrow surprise you? Why or why not?