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A retail property generates $200,000 in gross rental income annually. Operating expenses are $75,000, and debt service is $90,000. What is the Net Operating Income (NOI)?

Correct Answer

B) $125,000

NOI is calculated by subtracting operating expenses from gross rental income, but debt service is not included in this calculation. Therefore: $200,000 - $75,000 = $125,000. Debt service is considered separately as it relates to financing rather than property operations.

Answer Options
A
$35,000
B
$125,000
C
$165,000
D
$275,000

Why This Is the Correct Answer

Option B ($125,000) is correct because NOI is calculated as Gross Rental Income minus Operating Expenses only. The formula is: NOI = Gross Income - Operating Expenses. Therefore: $200,000 - $75,000 = $125,000. Debt service ($90,000) is specifically excluded from NOI calculations because it represents financing costs, not operational costs. This principle is fundamental in commercial real estate analysis and aligns with standard appraisal practices recognized under Canadian real estate regulations.

Why the Other Options Are Wrong

Option A: $35,000

Option A ($35,000) incorrectly subtracts both operating expenses AND debt service from gross income ($200,000 - $75,000 - $90,000 = $35,000). This calculates cash flow before taxes, not NOI. Debt service is a financing cost that varies based on loan terms and should never be included in NOI calculations.

Option C: $165,000

Option C ($165,000) incorrectly subtracts only debt service from gross income ($200,000 - $90,000 = $110,000, though the math doesn't match). This ignores operating expenses entirely, which are essential deductions in NOI calculations. Operating expenses must always be subtracted from gross income to determine NOI.

Option D: $275,000

Option D ($275,000) incorrectly adds operating expenses to gross income ($200,000 + $75,000 = $275,000). This is completely backwards - operating expenses reduce income and must be subtracted, not added. This would represent some form of gross calculation that has no meaning in real estate analysis.

Deep Analysis of This Commercial Real Estate Question

Net Operating Income (NOI) is a fundamental metric in commercial real estate valuation and investment analysis. It represents the property's income-generating capacity from operations alone, excluding financing decisions. This calculation is crucial for determining property value using the income approach, comparing investment opportunities, and assessing operational efficiency. NOI forms the basis for calculating capitalization rates and cash-on-cash returns. In Canadian commercial real estate practice, accurate NOI calculation is essential for appraisals, investment analysis, and regulatory compliance. The distinction between operating expenses and debt service is critical because NOI measures the property's inherent profitability independent of how it's financed. This allows investors to evaluate properties on equal footing regardless of their capital structure, making NOI a standardized measure across the industry.

Background Knowledge for Commercial Real Estate

Net Operating Income (NOI) is the income remaining after deducting operating expenses from gross rental income, but before deducting debt service, depreciation, and income taxes. Operating expenses include property taxes, insurance, maintenance, utilities, management fees, and repairs. Debt service (mortgage payments) is excluded because NOI measures the property's operational performance independent of financing. This standardization allows comparison between properties with different financing structures. NOI is used in the income approach to valuation, calculating cap rates (NOI รท Property Value), and determining investment returns. Canadian appraisal standards and commercial real estate practices follow this universal NOI definition.

Memory Technique

The GONE Method

Remember GONE: Gross income minus Operating expenses = NOI. Debt service is GONE from the calculation! Think of NOI as measuring what the property earns from operations alone, before any financing decisions come into play. The debt is 'gone' from this calculation because it's about financing, not operations.

When you see NOI questions, immediately think 'GONE' - debt service is gone from the calculation. Only subtract operating expenses from gross income. If you see debt service mentioned, remember it's excluded from NOI but used in cash flow calculations.

Exam Tip for Commercial Real Estate

For NOI questions, use the simple formula: Gross Income - Operating Expenses = NOI. Never include debt service, depreciation, or taxes in NOI calculations. These are 'below the line' items used for different financial metrics.

Real World Application in Commercial Real Estate

A commercial real estate agent is preparing a market analysis for a client considering purchasing an office building. The property generates $500,000 annually with $180,000 in operating expenses and $220,000 in debt service. To properly evaluate the investment opportunity and compare it with other properties, the agent calculates NOI as $320,000 ($500,000 - $180,000), excluding debt service. This NOI figure allows the client to determine the cap rate, compare with similar properties regardless of financing, and make informed investment decisions based on the property's operational performance.

Common Mistakes to Avoid on Commercial Real Estate Questions

  • โ€ขIncluding debt service in NOI calculations
  • โ€ขConfusing NOI with cash flow before taxes
  • โ€ขAdding instead of subtracting operating expenses

Key Terms

Net Operating IncomeNOIoperating expensesdebt servicegross rental income

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