Finance

Debt-to-Income Calculator

Calculate your front-end and back-end DTI ratio to see where you stand for mortgage qualification.

Quick Answer

With $6,000 gross monthly income and $2,350 in total monthly debts, your back-end DTI is 39.2%. Most conventional lenders prefer under 36%, while FHA allows up to 43%.

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Disclaimer: DTI is one of many factors lenders consider. Actual mortgage qualification depends on credit score, down payment, reserves, employment history, and other factors. Lender requirements vary. This is not financial or lending advice.

About This Tool

The Debt-to-Income Calculator computes both your front-end and back-end DTI ratios, which are key metrics lenders use to evaluate mortgage applications. It compares your ratios against common qualification thresholds for conventional, FHA, and VA loans.

Your DTI ratio is simply your total monthly debt payments divided by your gross monthly income. Lenders use this number because it measures your capacity to take on additional debt. A lower DTI means more room in your budget for a mortgage payment, which reduces the lender's risk.

Why DTI Matters Beyond Mortgages

While DTI is most commonly discussed in the context of home buying, it is a useful personal finance metric regardless. Keeping your back-end DTI below 36% is a good rule of thumb for financial health. Above 50%, you are likely stretched thin and vulnerable to any income disruption. Tracking your DTI over time helps you stay aware of your debt load relative to your earning capacity.

Frequently Asked Questions

What is a good debt-to-income ratio?
For mortgage qualification, lenders typically want a front-end DTI (housing only) below 28% and a back-end DTI (all debts) below 36%. FHA loans allow up to 43% back-end DTI, and some lenders go to 50% with compensating factors. Below 20% is considered excellent. The lower your DTI, the more favorable your loan terms will be.
What is the difference between front-end and back-end DTI?
Front-end DTI (also called housing ratio) only includes housing costs -- mortgage/rent, property tax, insurance, and HOA fees -- divided by gross monthly income. Back-end DTI includes all monthly debt obligations (housing plus car loans, student loans, credit cards, personal loans) divided by gross income. Lenders look at both, but back-end DTI is usually the binding constraint.
How do I lower my DTI ratio?
Two approaches: reduce debt payments or increase income. Pay off or pay down credit cards and loans. Refinance to lower monthly payments. Avoid taking on new debt before applying for a mortgage. On the income side, a raise, side income, or adding a co-borrower can help. Even an extra $500/month in income can move your DTI several percentage points.
Does DTI affect my credit score?
DTI itself does not directly affect your credit score -- FICO does not use income data. However, the underlying factors that create high DTI (high credit utilization, many open accounts with balances) do impact your score. Lenders evaluate both your credit score and DTI separately. You can have an excellent credit score but still be denied a mortgage if your DTI is too high.
What debts are included in DTI calculation?
DTI includes all minimum monthly debt payments that appear on your credit report: mortgage/rent, car loans, student loans, credit card minimum payments, personal loans, child support, and alimony. It does NOT include utilities, groceries, insurance premiums (unless bundled with mortgage), subscriptions, or other regular expenses that are not debt obligations.

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