Calcolatore NOI (Commerciale)Formula

## Commercial NOI Calculation

Net Operating Income is the most important metric in commercial real estate. It measures a property's income-producing ability before debt service and capital expenditures.

### Standard NOI Formula

**NOI = Effective Gross Income - Operating Expenses**

Where:
- Effective Gross Income = Potential Gross Income - Vacancy & Credit Loss
- Operating Expenses = Taxes + Insurance + Maintenance + Management + Utilities + Other

### What NOI Excludes

- Debt service (mortgage payments)
- Capital expenditures (roof replacement, HVAC, etc.)
- Depreciation and amortization
- Income taxes

### Operating Expense Benchmarks

- **Office**: 40-55% of EGI
- **Retail (NNN)**: 10-20% (tenants pay most expenses)
- **Industrial**: 20-35%
- **Multifamily**: 35-50%

Lower expense ratios mean more income flows to NOI, which directly increases property value.

Esempio Risolto

$250,000 gross rental income, $15,000 other income, 7% vacancy, $28,000 taxes, $8,000 insurance, $15,000 maintenance, $18,000 management, $12,000 utilities, $5,000 other.

  1. Potential gross income: $250,000 + $15,000 = $265,000
  2. Vacancy loss: $265,000 x 7% = $18,550
  3. Effective gross income: $265,000 - $18,550 = $246,450
  4. Total expenses: $28,000 + $8,000 + $15,000 + $18,000 + $12,000 + $5,000 = $86,000
  5. NOI: $246,450 - $86,000 = $160,450
  6. Expense ratio: $86,000 / $246,450 = 34.9%