Debt-to-Income Ratio: What It Is and How to Calculate It

Key Takeaways

DTI compares your monthly debt payments to income
Most lenders want DTI below 43%
DTI is separate from your credit score
Lower DTI improves loan approval odds
Paying off debt or increasing income improves DTI

What Is Debt-to-Income Ratio?

Your debt-to-income ratio (DTI) is the percentage of your monthly gross income that goes toward paying debts. Lenders use DTI to assess your ability to manage monthly payments and repay borrowed money.

43%

maximum DTI for most conventional mortgages

Source: Consumer Financial Protection Bureau

Why DTI Matters

Even with an excellent credit score, a high DTI can result in loan denial. Lenders want to ensure you have enough income to handle new debt payments on top of existing obligations.

How to Calculate Your DTI

Add Up Monthly Debt Payments
Include: mortgage/rent, car loans, student loans, minimum credit card payments, personal loans, child support, and alimony. Don't include utilities, insurance, groceries, or taxes.
Determine Gross Monthly Income
Use pre-tax income (gross, not net). Include salary, wages, bonuses, tips, Social Security, pension, alimony received, and other regular income sources.
Divide Debt by Income
Divide your total monthly debt payments by your gross monthly income. Multiply by 100 to get your DTI percentage.

DTI Calculation Example

Monthly debts: $1,500 mortgage + $400 car loan + $200 student loan + $100 credit cards = $2,200
Gross monthly income: $6,000
DTI: $2,200 ÷ $6,000 = 0.367 = 36.7%

Front-End vs Back-End DTI

For mortgages, lenders look at two DTI ratios:

Front-end DTI: Housing costs only (mortgage, taxes, insurance) divided by income. Typically should be 28% or less.
Back-end DTI: All debts (including housing) divided by income. This is the more commonly referenced number.

Acceptable DTI Ratios by Loan Type

Maximum DTI by Loan Type

Conventional mortgage: 43-45%
FHA mortgage: 43-50%
VA mortgage: 41% (flexible)
USDA mortgage: 41%
Personal loans: 35-40%

DTI Ranges

Under 20%: Excellent—you have significant financial flexibility
20-35%: Good—manageable debt level
36-43%: Acceptable—may limit borrowing options
44-50%: High—limited options, higher rates
Over 50%: Very high—most lenders will decline

Strategies to Improve Your DTI

Reduce Your Debt

Pay off credit card balances
Pay down car loans or refinance to lower payment
Consolidate high-payment debts
Pay off small debts completely
Avoid taking on new debt

Increase Your Income

Ask for a raise or promotion
Take on a side job or freelance work
Include all income sources (bonuses, commissions)
Add a co-borrower with income

Quick DTI Reduction

The fastest way to lower DTI is to pay off revolving debt (credit cards). Unlike installment loans with fixed payments, paying off credit card balances immediately reduces your minimum payment requirement, which lowers your DTI calculation.

What Doesn't Help DTI

Closing credit cards: This doesn't reduce DTI (unless you had a balance)
Improving credit score: DTI and credit score are separate calculations
Savings: Assets don't factor into DTI

Credit Issues Blocking Your Loan?

While DTI is one factor, credit report errors can also prevent loan approval. Our platform helps you identify and dispute inaccuracies.

Check Your Report Learn how it works

Frequently Asked Questions

Most lenders prefer DTI below 43%. For the best rates and approval odds, aim for 36% or lower. Some loan programs accept up to 50% DTI with compensating factors.

No, debt-to-income ratio is not a factor in credit score calculations. However, lenders consider both your credit score AND your DTI when making lending decisions.

DTI includes monthly debt payments: mortgage/rent, car loans, student loans, minimum credit card payments, personal loans, alimony, and child support. It doesn't include utilities, insurance, or groceries.

Pay off credit card balances—this immediately reduces your minimum payment. Pay off small loans entirely. Avoid new debt. Consider asking for a raise or taking on additional income.

Some FHA loans allow up to 50% DTI with compensating factors (high credit score, significant savings, stable income history). Conventional loans typically max out at 43-45%.