Debt-to-Income Ratio: What It Is and How to Improve Yours

When you apply for a mortgage, car loan, or personal loan, lenders look at one number more than almost any other: your debt-to-income ratio (DTI). Get this number wrong and you'll pay a higher rate — or get rejected entirely.

What Is the Debt-to-Income Ratio?

Your DTI ratio is the percentage of your gross monthly income that goes toward debt payments. It's calculated as: Total Monthly Debt Payments ÷ Gross Monthly Income × 100. For example, if you earn $5,000/month and pay $1,500 in debt payments, your DTI is 30%.

What Counts as Debt?

• Mortgage or rent payment
• Car loans
• Student loans
• Credit card minimum payments
• Personal loans
• Child support or alimony

What Is a Good DTI Ratio?

• Under 36%: Excellent — most lenders prefer this
• 36%–43%: Acceptable for most mortgages
• 43%–50%: You may qualify for some loans but at higher rates
• Over 50%: Difficult to get approved for new credit

Front-End vs Back-End DTI

Mortgage lenders look at two versions. Front-end DTI includes only housing costs (mortgage, taxes, insurance). Back-end DTI includes all debts. Most conventional mortgages want a front-end DTI under 28% and back-end under 43%.

How to Lower Your DTI

• Pay down high-balance debts
• Avoid taking on new debt before applying for a loan
• Increase your income (side jobs, raises)
• Pay off the debt with the highest monthly payment first
• Don't close old accounts (this can lower available credit and hurt your credit score)