To calculate your debt-to-income ratio (DTI), add up all your monthly debt payments, divide that amount by your gross monthly income (before taxes), and multiply by 100:
DTI = [Total monthly debt payments ÷ gross monthly income] × 100
Total monthly debt payments may include housing payments, student loans, car loans, alimony or child support, and minimum credit card payments. When calculating your DTI, monthly debt does not include monthly payments for things like utilities or phone and internet service.
Learn more about why DTI is important.