5 min read

Debt-to-Income (DTI) Ratio Calculator

Calculate your front-end and back-end DTI to see if you qualify for a mortgage.

Gross Monthly Income

Total Monthly Debt

Front-End DTI

0.0%

Back-End DTI

0.0%

Monthly Finances

Income

Gross Monthly Income (Before Taxes)

Proposed Housing Expenses

Mortgage Principal & Interest

Property Taxes, Insurance & HOA

Other Monthly Debts

Auto Loans

Student Loans

Credit Cards (Minimum Payments)

Other Debt (Personal loans, Alimony, etc.)

DTI Analysis

Evaluating your ratio...

Enter your details to see if your DTI is within typical lender limits.

What lenders look for:

≤ 36%: Excellent. Ideal for most conventional loans.
37% - 43%: Good. Acceptable for many FHA and conventional loans.
44% - 50%: High. May require compensating factors (e.g., high credit score, large reserves).
> 50%: Very High. Extremely difficult to get approved for a new mortgage.

Mortgage DTI Requirements by Loan Program

Compare the maximum allowable front-end and back-end DTI ratios across standard US mortgage programs. Note that lenders may have "overlays" (stricter internal requirements) above these baseline guidelines.

Loan Program ⇕	Max Front-End DTI ⇕	Max Back-End DTI ⇕	Min. Credit Score ⇕	Notes ⇕

Methodology & Data Sources

The maximum DTI ratios and credit score minimums provided in the table are sourced directly from the official selling guides and handbooks of the respective agencies as of 2024:

Conventional Loans: Fannie Mae Single Family Selling Guide and Freddie Mac Single-Family Seller/Servicer Guide. Standard max DTI is 36%, but can go up to 45-50% with an automated underwriting system (AUS) approval.
FHA Loans: U.S. Department of Housing and Urban Development (HUD) Handbook 4000.1. Standard max is 31/43, but allows up to 40/50 with compensating factors.
VA Loans: Department of Veterans Affairs Lenders Handbook (VA Pamphlet 26-7). The VA does not strictly enforce a maximum DTI but uses 41% as a benchmark for requiring additional justification.
USDA Loans: USDA Rural Development Single Family Housing Guaranteed Loan Program guidelines. Standard ratios are 29/41.

Calculations performed by this tool assume gross income is monthly and before taxes. Results are estimates for educational purposes and do not constitute loan approval or financial advice.

Frequently Asked Questions

What is a good DTI ratio?

A good debt-to-income (DTI) ratio is generally considered to be 36% or lower. Most lenders prefer your back-end DTI (all monthly debt payments divided by gross monthly income) to be under 36%, though some loan programs allow up to 43% or even 50% with compensating factors.

How to calculate debt to income?

To calculate your debt-to-income ratio, add up all your monthly debt payments (such as mortgage, car loans, student loans, and minimum credit card payments) and divide that total by your gross monthly income (your income before taxes). Multiply the result by 100 to get a percentage.

What are mortgage DTI requirements?

Mortgage DTI requirements vary by loan type. Conventional loans typically require a back-end DTI of 36% to 43%. FHA loans generally allow a DTI up to 43%, though they can go up to 50% in certain cases. VA loans usually look for a DTI of 41% or lower, and USDA loans typically cap DTI at 41%.

What is front-end vs back-end DTI?

Front-end DTI, also known as the housing ratio, calculates only your housing-related expenses (mortgage principal, interest, taxes, and insurance) as a percentage of your gross monthly income. Back-end DTI includes your housing expenses plus all other minimum monthly debt payments.

Does DTI affect credit score?

Your debt-to-income ratio does not directly affect your credit score, as your income is not reported to credit bureaus. However, credit utilization (how much credit you are using compared to your limits) does impact your score, and high debt levels can affect both DTI and credit utilization.