The Mortgage Brothers give borrowers a helpful quick method for determining how much they might qualify for on a mortgage. 

Example:

• Take Gross monthly income $4,000
• Divide Income in half ($4,000 / 2 = $2,000)
• Then count currently monthly debt that would show up on credit report. For this example, assume it is $500/month
• Subtract $500 from $2000  = $1,500
• Divide $1,500 by $6.50 = 230 which is in thousands, this borrower qualifies for a loan possibly up to $230K