New York Real Estate Salesperson ExaminationReal Estate CalculationsMedium

A rental property generates $2,500 in gross monthly income. The operating expenses are 35% of the gross income. The property owner has a mortgage payment of $1,200 per month. What is the property's monthly net operating income (NOI)?

  1. A$2,500
  2. B$1,625
  3. C$475
  4. D$1,300
Show answer & explanation

Correct answer: B. $1,625

First, calculate the operating expenses: $2,500 * 0.35 = $875. Then, subtract the operating expenses from the gross monthly income to find the NOI: $2,500 - $875 = $1,625. The mortgage payment is not included in NOI.

Why the other options are wrong

  • A. This is the gross monthly income, not NOI.
  • C. This incorrectly subtracts both operating expenses and mortgage from gross income.
  • D. This incorrectly subtracts operating expenses from gross income.

Net Operating Income (NOI)

A calculation used to analyze the profitability of income-generating real estate investments before the impact of debt service and income taxes.

  • Calculated as Gross Operating Income minus Operating Expenses.
  • Does NOT include mortgage payments (debt service).
  • A key metric for property valuation and investment analysis.

Memory trick: Gross income first, then subtract operating expenses, no thirst for debt.

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