Net operating income (NOI) is a property’s total gross revenue — including rents, parking income, laundry revenue, and other ancillary income — minus all operating expenses such as property management fees, maintenance, utilities, insurance, and real estate taxes, but excluding debt service payments, capital expenditures, and depreciation. NOI represents the cash flow a property generates before financing costs and is the foundational input for nearly every CRE valuation and lending metric: cap rates, DSCR, and debt yield all depend on NOI. A property generating $500,000 in revenue with $200,000 in operating expenses has an NOI of $300,000. Because NOI excludes financing, it allows for apples-to-apples comparison of property performance regardless of capital structure.
How It Works in Practice
NOI is simple conceptually but complex in practice because its definition varies depending on who is calculating it and for what purpose. Lenders often adjust NOI during underwriting — deducting vacancy reserves, management fee floors, or capital replacement reserves that the borrower may not actually incur — producing an “underwritten NOI” that is lower than the property’s actual trailing performance. For ongoing covenant testing, the trailing period matters enormously: T-3 (trailing three months, annualized), T-6, and T-12 (trailing twelve months) NOI can produce materially different results for the same property, especially for assets with seasonal income patterns or properties undergoing lease-up. A property that passes its DSCR test on T-12 NOI might fail on T-3 NOI after a bad quarter. Understanding which NOI definition your lender uses — and when the calculation is run — is essential for managing covenant compliance. LoanBoss tracks NOI across your portfolio using the specific definitions in each loan document, not a generic formula.
Related Terms
Part of the LoanBoss CRE Debt Glossary. For hedging-specific terms, see Pensford’s resources.