What Is a Good Debt-to-Income Ratio?

What Is Debt-to-Income Ratio (DTI)?

Your debt-to-income ratio (DTI) is the percentage of your gross monthly income that goes toward monthly debt payments. It is one of the most important numbers lenders look at when evaluating loan applications — arguably more important than your credit score for mortgage applications.

Formula: DTI = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100

For example, if you earn $6,000/month before taxes and pay $1,800/month in housing plus $400 in other debts, your DTI is ($2,200 ÷ $6,000) × 100 = 36.7%.

DTI Thresholds: What Lenders Look For

• Under 20% — Excellent: Lenders view this as very low risk. You will qualify for the best rates.
• 20–35% — Good: Most lenders will approve you for conventional loans with competitive rates.
• 36–43% — Fair: You may qualify but with slightly higher rates. Some lenders may require compensating factors (high credit score, large down payment).
• 44–49% — High: Approval becomes more difficult. FHA loans allow up to 50% with strong compensating factors.
• 50%+ — Too High: Most lenders will not approve a mortgage at this level. Focus on reducing debt before applying.

Front-End vs Back-End DTI

Lenders actually use two DTI ratios. The front-end ratio (housing ratio) measures only housing costs (PITI: principal, interest, taxes, insurance) as a percentage of gross income. The guideline is to keep this below 28%. The back-end ratio(total DTI) includes all monthly debt obligations and is typically capped at 43% for conventional loans.

Front-End vs Back-End DTI Examples

For a household earning $8,000/month gross income:

• 28% front-end max = $2,240/month for housing (PITI)
• 43% back-end max = $3,440/month for all debts combined
• If you have $600/month in car and student loan payments, your max housing budget drops to $2,840/month

How to Lower Your DTI Ratio

There are only two ways to lower your DTI: reduce your monthly debt payments or increase your income. Here are the most effective strategies:

• Pay off small debts completely: Eliminating a $200/month car payment reduces your DTI by 200 ÷ gross income. Paying off small balances can have an outsized impact.
• Avoid new debt: Don't take on new loans or open new credit cards in the months before a mortgage application.
• Refinance existing debt at lower rates: A lower interest rate on existing loans can reduce minimum payments and DTI.
• Increase income: Side income, freelance work, or a raise all lower your DTI ratio without touching debt at all.
• Wait and save more: A larger down payment means a smaller mortgage payment, which directly improves your front-end DTI.

DTI vs Credit Score: Which Matters More?

Both matter, but for different reasons. Your credit score determines whether you qualify and what interest rate you receive. Your DTI determines how large of a loan you can receive. A high credit score won't save you from a DTI denial — lenders won't approve a loan payment you can't afford, regardless of past payment history.

Use our free DTI calculator to see your current ratio and understand exactly where you stand before talking to a lender.