A property has potential gross income of $100,000, vacancy and collection loss of 5%, and operating expenses of $40,000. What is the Net Operating Income (NOI)?
Correct Answer
A) $55,000
Effective Gross Income = $100,000 × (1 - 0.05) = $95,000. NOI = Effective Gross Income - Operating Expenses = $95,000 - $40,000 = $55,000.
Why This Is the Correct Answer
Option A ($55,000) correctly follows the two-step NOI calculation process. First, the Effective Gross Income is calculated by reducing the Potential Gross Income by the vacancy and collection loss: $100,000 × (1 - 0.05) = $95,000. Then, operating expenses are subtracted from the Effective Gross Income: $95,000 - $40,000 = $55,000. This systematic approach ensures all income adjustments are properly accounted for before determining the net income available to the property owner.
Why the Other Options Are Wrong
Option B: $60,000
Option B ($60,000) incorrectly subtracts operating expenses directly from Potential Gross Income without first accounting for vacancy and collection losses, resulting in $100,000 - $40,000 = $60,000. This skips the critical step of calculating Effective Gross Income first.
Option C: $57,000
Option C ($57,000) appears to use an incorrect calculation method, possibly adding the vacancy loss as a dollar amount ($5,000) to the correct NOI instead of treating it as a percentage reduction from gross income.
Option D: $95,000
Option D ($95,000) only calculates the Effective Gross Income by subtracting vacancy and collection losses but fails to subtract the operating expenses, stopping one step short of the complete NOI calculation.
PEG-NOI Formula
Remember 'PEG-NOI': Potential becomes Effective, then Gets NOI. P(otential) - V(acancy) = E(ffective), then E(ffective) - O(perating) = N(OI). Think of it as 'PEG the right number' - you must peg down the income step by step.
How to use: When you see an NOI question, immediately write 'PEG-NOI' and set up the two-step calculation: Step 1 (P to E): Reduce potential income by vacancy/collection losses. Step 2 (E to NOI): Subtract operating expenses from effective income.
Exam Tip
Always perform NOI calculations in the exact sequence: Potential Gross Income → Effective Gross Income → Net Operating Income. Write out each step clearly to avoid calculation errors and ensure you don't skip the vacancy adjustment.
Common Mistakes to Avoid
- -Subtracting operating expenses directly from potential gross income without first calculating effective gross income
- -Forgetting to convert the vacancy percentage to a decimal (using 5% instead of 0.05)
- -Adding vacancy losses instead of subtracting them from potential gross income
Concept Deep Dive
Analysis
This question tests the fundamental income approach calculation for determining Net Operating Income (NOI), which is a critical metric in real estate valuation. The calculation requires understanding the sequential steps: starting with Potential Gross Income, subtracting vacancy and collection losses to get Effective Gross Income, then subtracting operating expenses to arrive at NOI. This is one of the most important calculations in commercial real estate appraisal as NOI is used to determine property value through capitalization rates. Understanding this calculation is essential for the income approach to valuation.
Background Knowledge
Net Operating Income represents the annual income generated by an income-producing property after deducting operating expenses but before deducting debt service and income taxes. The income approach to valuation relies heavily on accurate NOI calculations, as this figure is divided by a capitalization rate to determine property value.
Real-World Application
Appraisers use NOI calculations daily when valuing income-producing properties like apartment buildings, office complexes, and retail centers. Lenders require accurate NOI figures to determine loan amounts, and investors use NOI to compare different investment opportunities and calculate returns.
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