Ideally, first-time homebuyers would know how much they can afford to spend before the mortgage lender tells them how much they qualify for.
By calculating their debt-to-income ratio and factoring in a down payment, buyers should have a good idea of what they can afford, both upfront and monthly, when it comes to their home.
Though there's not a fixed debt-to-income ratio that lenders require, the old standard dictates that no more than 28 percent of your gross monthly income be devoted to housing costs. This percentage is called the front-end ratio.
The back-end ratio shows what portion of income covers all monthly debt obligations. Lenders prefer the back-end ratio to be 36 percent or less, but some borrowers get approved with back-end ratios of 45 percent or higher.
"Find out what you can afford and then you can back into everything else. We know the money you have available to put down, we know the monthly payment and we can solve (the equation) for the third variable -- and that is the home price," Winesburg says.