Calculate debt service coverage ratio from net operating income and total debt service for loan qualification and analysis.
DSCR expresses how many times a property's or business's net operating income covers its debt service for the same period. Supply net operating income and total required debt payments, and the calculator divides the first by the second to return a coverage ratio. The common trap is inconsistent periods: annual income divided by monthly debt service produces a meaningless result. A value above 1 means the entered income exceeds the entered debt service, but it does not by itself establish loan eligibility.
A concrete input and expected output from the current implementation.
Input
Net operating income: $120,000 per year Total debt service: $100,000 per year
Expected output
DSCR: 1.20x
$120,000 divided by $100,000 is exactly 1.2. The entered income therefore covers the entered debt service 1.2 times, with a $20,000 difference between the two annual amounts.
With NOI of N and debt service of D, the calculation is N / D. Both amounts must cover identical periods and use the same currency. Because units cancel, the result is shown as a ratio, often written with an x. For example, 1.20x means income equals 120 percent of the entered debt service.
Interpretation pivots around 1.00. Above 1.00, the supplied NOI covers the supplied debt service; exactly 1.00, they are equal; below 1.00, NOI is insufficient by this calculation. The calculator measures coverage only. It does not infer a lender's required minimum, adjust the inputs, or decide whether a loan qualifies.
Use the NOI definition required for the analysis. In property analysis, it generally starts with operating revenue and subtracts operating expenses before debt service. Do not assume tax-return net income is interchangeable. Vacancy assumptions, management fees, reserves, owner compensation, and one-time items may be treated differently by a lender, so use its stated underwriting definition.
Yes, if both inputs cover the same month and are prepared on a consistent basis. Annual NOI with annual debt service gives the same ratio as corresponding monthly amounts. No, you cannot mix annual and monthly values. Irregular or seasonal cash flows may also make a single month's ratio unrepresentative.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
Calculate gross, operating, and net profit margins from cost and revenue with breakeven analysis.
Convert between annual salary and hourly rate with adjustments for work hours, overtime, and benefits.
Calculate sales tax amounts, tax-inclusive and tax-exclusive prices for any tax rate or jurisdiction.
Calculate return on investment from initial cost and final value with annualized ROI and comparison tables.
Convert between markup and margin percentages, calculate selling price, and compare pricing strategies.
Convert numeric amounts to written words for invoices, checks, and legal documents in multiple currencies.