Understand Your Numbers

Debt to Income Calculator

See how your monthly debt payments compare with your gross monthly income as you prepare for your next home purchase.

Your numbers. Your next step.

See how your monthly debts compare with your income.

Enter your income before taxes, your monthly housing payment, and other required debt payments. Then select Calculate DTI to view your estimated debt-to-income ratio.

Income & housing

Income before taxes and deductions for the borrowers included in this estimate. Include their debts below, too.

For a purchase estimate, use the proposed mortgage payment including principal, interest, property taxes, insurance, mortgage insurance, and HOA / condo fees. Do not also include rent that will end when you move.

Other monthly debt payments

Use required monthly payments, not outstanding balances. Include each payment once.

If payments are deferred or currently $0, ask your lender what payment to use for qualification.

Add the required minimum payments across your cards, rather than the amount you choose to pay extra.

Include other loan payments and required support obligations not entered above. Exclude groceries, utilities, and other everyday spending.

Starting values are examples, not lending recommendations. Enter 0 for payments that do not apply.

Planning estimate only. This is not loan approval. Lenders determine qualifying income, counted debts, and applicable DTI limits.

Beyond the percentage

Understand your debt-to-income ratio.

Your DTI shows how your entered housing and debt payments compare with income before taxes. Understanding what goes into that percentage helps you compare scenarios without confusing the result with your everyday spending budget.

Your income baseline

Gross monthly income

The calculator divides your annual gross borrower income by 12 to create a monthly figure. Gross income means income before taxes and deductions, rather than the amount deposited into your bank account.

Include income and debts for the same borrowers. With payments unchanged, a higher income entry lowers the calculated ratio. The tool uses your figures directly; it does not verify qualifying income.

Your payment inputs

Housing & other debts

For a purchase scenario, enter the full proposed monthly housing payment, including principal, interest, property taxes, insurance, mortgage insurance, and HOA or condo fees. These components are not calculated separately by this tool.

Add required monthly debt payments, not outstanding balances. Use credit card minimums and count each obligation once. Exclude rent that will end when you move, along with groceries, utilities, and everyday spending.

Your two results

Total & housing-only DTI

Total DTI divides your housing payment plus other entered debt payments by gross monthly income. The housing-only ratio divides just the housing payment by that same income. Both results are displayed as percentages.

Changing another debt payment affects total DTI but leaves the housing-only ratio unchanged. Neither percentage shows cash remaining after taxes, living expenses, or savings, and the tool does not assign an approval rating.

Compare a few possibilities.

Change one input at a time to see what affects your ratio.

  1. Calculate your starting scenario and note the total DTI and housing-only income ratio.
  2. Adjust one input, such as the proposed housing payment or a required monthly debt payment.
  3. Select Calculate DTI again and compare the updated percentages with your starting point.

This ratio is a planning estimate, not loan approval or a complete household budget. Your lender determines qualifying income, counted obligations, and applicable limits.

A little more clarity

Questions about your debt-to-income ratio?

Here’s what to enter, how to read your two ratios, and why this estimate is a starting point for a conversation about financing.

Should I use income before or after taxes?

Enter annual income before taxes and deductions for the borrowers included in your estimate. The calculator divides that amount by 12. Include those same borrowers’ debt payments below. It uses your entered income without verifying it or determining how much a lender would count.

Which monthly payments should I include?

For a purchase estimate, enter the proposed housing payment including principal, interest, taxes, insurance, mortgage insurance, and HOA fees. Add required monthly debt payments, including credit card minimums—not outstanding balances. Count each payment once. Exclude groceries, utilities, and rent that will end when you move.

Why are there two different ratios?

Total DTI compares your entered housing payment plus other debt payments with gross monthly income. The housing-only ratio compares just your housing payment with that same income.

Neither ratio subtracts income taxes or everyday living expenses, so neither shows how much spending money you will have left.

Does my result tell me whether I qualify?

No. This calculator reports the ratios from your inputs. It does not apply approval thresholds, review your credit, or determine a qualifying loan amount.

Use the result to prepare for a lender conversation. The example inputs are not recommendations, and the calculator does not verify qualifying income or which obligations a lender will count.

Why hasn’t my result changed after editing?

Results update only when you select Calculate DTI and the inputs pass validation. While you edit, the displayed numbers continue to reflect your last calculation.

Reset example restores the starting inputs without replacing your previous results. Select Calculate DTI again to calculate using the restored values.

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