About Rental Property Cash Flow Calculator: NOI & Debt Service
Estimate effective rental income, operating expenses, NOI, debt service, and monthly or annual property cash flow.
Change the example inputs to match a scenario and review the methodology and limitations before using the result in a decision. Calculations run locally in your browser.
How the calculation works
NOI
Gross scheduled income − vacancy allowance − operating expenses.
Cash flow
NOI − mortgage or other debt service.
How to use this calculator
- 1Replace the example values with internally consistent inputs.
- 2Review all result cards and any not-applicable state.
- 3Compare multiple scenarios and verify important assumptions independently.
Understanding the result
Debt service is shown after NOI, never inside it.
Negative cash flow means entered debt and expenses exceed effective income.
Important limitations
- Outputs are planning estimates and do not include every provider, accounting, financing, tax, legal, or operational factor.
- Invalid divisions are shown as not applicable rather than NaN or Infinity.
- Capital expenditures, taxes, appreciation, and transaction proceeds require separate analysis.
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Frequently asked questions
What does the Rental Property Cash Flow Calculator: NOI & Debt Service calculate?
Estimate effective rental income, operating expenses, NOI, debt service, and monthly or annual property cash flow.
Are the results guaranteed?
No. Results are deterministic estimates from the values and assumptions you enter.
How should I use the result?
Use it for planning and scenario comparison, then verify current rates, costs, accounting definitions, and professional requirements that apply to your situation.
Is entered data uploaded?
No. The calculation runs in your browser.
Use with
These tools support a practical next or previous step in the same workflow.
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