Net Operating Income (NOI)
Definition and meaning of Net Operating Income (NOI) in real estate.
Net operating income (NOI) is a mathematical calculation used to analyze the profitability of income-generating real estate. It is calculated by taking all revenue from the property and subtracting all necessary operating expenses, excluding mortgage payments and capital expenditures.
In more detail
Operating expenses included in the calculation are property taxes, insurance, maintenance, utilities, and property management fees. Mortgage interest, principal payments, amortization, and income taxes are excluded because they are specific to the owner's financing and tax situation rather than the property itself. Real estate investors use this metric to determine the capitalization rate of a property, which helps them compare the value of different investments.
Lenders also review this figure to calculate the debt service coverage ratio, determining if the property can support a loan.
Key facts
| Category | Real Estate Investing |
|---|---|
| Excluded costs | Mortgage payments, capital expenditures, and income taxes |
| Key use | Calculating capitalization rates and comparing investment assets |
| Calculation formula | Gross operating income minus operating expenses |
An apartment building generates $100,000 in annual rent. The owner pays $40,000 in operating expenses, resulting in a net operating income of $60,000.
Frequently asked questions
Why does net operating income exclude mortgage payments?
It excludes mortgage payments to isolate the property's actual earning potential, allowing investors to compare properties regardless of how they are financed.
How does operating expense inflation affect this metric?
If operating expenses rise faster than rental income, the net operating income will decrease, lowering the property's overall market value.