Debt-to-income ratio is the percentage of your income you use to pay your debts. Most banks and financial professionals agree that you should keep your debt-to-income ratio at less than 36 percent of your gross income. If you want to get a picture of how your situation measures up, there's a simple way to figure it out. Take your monthly gross income—let's say two thousand dollars a month—and multiply it by 36 percent:
($2000 x .36 = $720)
In this example, your debt payments shouldn't exceed $720 per month. It's a pretty simple formula, and it gives you a quick guideline as to how much of your income is considered a comfortable debt load.