I'm talking about selling, general, and administrative expenses; sales and marketing costs; and research and development budgets. It also accounts for industry-specific operating costs, such as shipping expenses for e-commerce retailers or fuel costs for shipping services.
However, the analysis stops before reaching financial management items like taxes, interest expenses, depreciation, and amortization. Unless you're running a bank, those items are not part of your core business.
Net operating income isn't exactly the same thing as earnings before interest and taxes (EBIT). That metric takes a couple of extra steps down the income statement. EBIT accounts for depreciation and amortization costs, while NOI doesn't.
NOI is even more similar to earnings before interest, tax, depreciation, and amortization (EBITDA). Here, the difference is EBITDA is a commonly used metric with clearly defined components, while net operating income is open to adjustments as different companies may include different items in their core operations.