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How to use
- Enter Monthly mortgage payment.
- Enter Gross monthly income.
- Calculate, then review what is included in the definition before making a financial decision.
How it is calculated
Ratio = mortgage payment ÷ gross income × 100
Example
A 2,800 payment on 12,000 gross income gives 23.33% and leaves 9,200 before other expenses.
Important notes
This ratio excludes taxes, insurance and other housing costs. Use housing expense ratio for a broader measure.
Worked examples and interpreting results
| Case | Calculation | Result |
|---|---|---|
| Ratio | 2800 ÷ 12000 × 100 | 23.333333 % |
| Remaining income | 12000 − 2800 | 9,200 |
Frequently asked questions
Is this the same as DTI?
Not fully. DTI usually compares total debt obligations with income; this calculator isolates mortgage payment only.
Is this a loan approval or credit decision?
No. This is a numerical calculator only; lenders may use different income, debt, appraisal and fee policies.
Should I use gross or net income?
Use the income type named by the field. Do not substitute net for gross because it changes the denominator and result.