How the two DSCR definitions are calculated
Because “DSCR” is used differently across lending and property analysis, this workspace shows two ratios separately instead of pretending one universal definition applies.
The first ratio divides entered monthly rent or qualifying rental income by entered monthly PITIA-style housing expense. The second divides entered annual net operating income by entered annual debt service. No approval threshold is built into either ratio; the calculator only performs the arithmetic on the numbers you supply.
Monthly rent ÷ monthly PITIAA property-cash-flow style ratio often used in rental-loan discussions.
Annual NOI ÷ annual debt serviceA separate commercial-style debt-service coverage concept.
Choose which ratio matches the product or analysis you are reviewing.
For rent-to-PITIA, keep the rent and housing-payment definitions consistent.
For NOI-to-debt-service, use a defined NOI convention and annual debt service from the same analysis.
Compare your result only with the actual provider’s documented definition and threshold.
Best used for
- Separating two common DSCR conventions
- Checking arithmetic on a rental-property scenario
- Showing how rent, expenses or debt service affect coverage
What this tool does not answer
- The calculator does not choose a qualifying rent definition.
- It does not calculate NOI from a property operating statement.
- It applies no lender threshold, reserve rule, vacancy factor or eligibility decision.
How to read a sample result
Illustrative example: $2,400 of monthly rent divided by $2,000 of monthly PITIA equals 1.20. Separately, $30,000 of annual NOI divided by $24,000 of annual debt service equals 1.25.
The methodology below explains how this calculator treats the inputs and assumptions. Replace the sample values with your own planning figures. Results are estimates, not quotes, approvals, disclosures or recommendations.
Inputs and units
Monthly qualifying rent and PITIA; annual net operating income and annual debt service. All currency entries are U.S. dollars. Percentage fields take a number such as 6 for six percent, not 0.06. Repayment terms marked in months use whole months; horizons marked in years use whole years.
Calculation workspace
Enter your own figures in the calculator above. The starting values are examples only. No personal identifiers are needed to run a scenario.
How to interpret the result
Read every result together with the assumptions you entered. Changing an input changes the scenario, not product availability. Displayed amounts are rounded for readability.
Assumptions and limitations
The two definitions are not interchangeable. No minimum ratio or approval threshold is supplied; actual program definitions control.
Review more than one scenario
Run a base case and then change one uncertain input at a time. Compare a shorter holding period, a higher cost or a different repayment term where those inputs are supported. Record which costs have not been entered. A precise-looking number can still rest on uncertain assumptions.
Invalid inputs and error recovery
If an input is missing or outside the calculator’s supported range, the page will ask you to correct it. Use negative values only in fields that explicitly allow them. A calculation error is not a credit decision.
Model documentation
The calculator methodology explains the inputs, assumptions and supported models. Use the result for planning and compare it with the provider’s written terms and applicable disclosures before making a decision.
Choose a product for your calculation
Use these comparisons for planning; final eligibility, pricing and terms are set by the provider.
Program references and comparison sources
CFPB: Loan Estimate explainer — Comparison of covered mortgage disclosures, cash to close, points, lender credits and monthly costs.
CFPB: Understand the different kinds of loans available — Loan structures, terms and repayment risks; not provider-specific eligibility.
Check the linked source for its effective date and applicable scope. A source link is not a lender partnership or an individual offer.