What the Debt Service Coverage Ratio Calculator is for
Compare annual property net operating income with annual debt service.
It keeps income, operating costs, financing, invested cash, value, timing, and exit assumptions explicit so you can reproduce the result and compare genuinely consistent scenarios.
Calculation structure
Keep income, costs, and value in the right period
DSCR = annual net operating income ÷ annual principal-and-interest debt service.
Visual explanation
See what drives the property result
Property incomeDebt serviceLoan balanceFinancing coverage and leverageDSCR = annual net operating income ÷ annual principal-and-interest debt service.
Read the result correctly
Use the result with its boundaries
NOI of 130,000 and annual debt service of 100,000 produce a DSCR of 1.3×.
Lenders may define NOI and debt service differently. This calculator applies only the entered figures and does not represent loan approval or covenant compliance.
Quick guide
How to use this calculator
Enter property amounts from one consistent currency and period.
Use the labels to match the calculator's stated income, cost, area, or capacity convention.
Read the assumptions beside the result before using it in an investment comparison.
Calculation method
Calculation method
DSCR = annual net operating income ÷ annual principal-and-interest debt service.
Entered fixed decimals use exact rational arithmetic. Money rounds only for display; a supported nonzero amount is never replaced by a misleading zero.
Worked example
Worked example
NOI of 130,000 and annual debt service of 100,000 produce a DSCR of 1.3×.
DSCR = annual net operating income ÷ annual principal-and-interest debt service.
Supported inputs
Precision and limits
Visible input limits
Amounts accept up to 30 digits and 12 decimal places and are capped at 1e12 per input. Rates are capped at 1000%; signed value-change rates cannot be below −100%.
International scope
No currency, tax regime, tenancy law, lender threshold, local market database, appraisal standard, or jurisdiction-specific fee is assumed.
Decision boundary
The result is an arithmetic scenario based on visitor-entered figures, not an appraisal, forecast, lending decision, legal determination, or investment recommendation.
Calculator-specific assumptions
Lenders may define NOI and debt service differently. This calculator applies only the entered figures and does not represent loan approval or covenant compliance.
