1.3333 is the example result. Read it using the units and relationship stated below.
Debt Service Coverage Ratio uses net operating income, annual debt service.
Comparing financial amounts on a defined basis
For debt service coverage ratio, the relationship is Result = (([Net operating income]) ÷ ([Annual debt service])). The amount depends on the supplied net operating income, annual debt service, rather than a live market price or a value imported from another record. A financial model is useful when its cash amounts, rate convention and time horizon describe the same case. Interest, return and purchasing power are different outputs. A projection should remain separate from an observed or audited balance.
What the model includes
Result = (([Net operating income]) ÷ ([Annual debt service])) Check whether a rate is annual, monthly, simple or compounded. Enter fees only where the form represents them and identify contractual charges that remain outside the estimate. A monthly payment alone does not establish affordability or total ownership cost. Use the result to prepare the next question about terms or assumptions. Tax treatment, lender conditions and valuation evidence require the relevant source documents; they cannot be recovered from a few numeric inputs.
Example with the supplied inputs
Net operating income: 120000; Annual debt service: 90000. Result: 1.3333. The values are illustrative.
Compare one changed input
Net operating income changes from 120000 to 132000. The result becomes 1.4667. All other inputs remain fixed.
Calculation rule
Result = (([Net operating income]) ÷ ([Annual debt service]))
Inputs and output
| Input | Example value | Entry convention |
|---|---|---|
| Net operating income | 120000 | Use the source quantity represented by net operating income. Keep the counted population fixed and avoid mixing a unit value with a period total. |
| Annual debt service | 90000 | Use the source quantity represented by annual debt service. Keep the counted population fixed and avoid mixing a unit value with a period total. |
Output: 1.3333 is the example result. Read it using the units and relationship stated below. Use the formula to distinguish a cash amount, count, percentage or ratio.
How to use the page
Collect the inputs
Gather Net operating income, Annual debt service. Use one period and the units shown in the form.
Run the calculation
Enter the values and select the action. The calculation rule above explains how the inputs produce the result.
Compare a scenario
Change Net operating income on its own, keeping the other inputs fixed. Read both results before changing another assumption.
Worked example
With the example inputs listed above, the result is 1.3333.
Change Net operating income from 120000 to 132000 while keeping every other value fixed. The result becomes 1.4667. This comparison isolates that input; it does not forecast how other variables will respond.
Check the stated formula, units and limits before using the result in a decision.
Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.
Content updated: October 11, 2026