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Real estate & rental

Rental NOI Calculator

Net operating income line by line, the figure everything else in property analysis builds on.

Your numbers

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Laundry, parking, pet rent, storage.
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Roof, systems, appliances. Not in conventional NOI, shown separately.

Result

Net operating income $26,734
Effective gross income $40,734
Operating expenses $14,000
NOI after capital reserves $24,634
Expense ratio 34.4%
NOI is $26,734 at an expense ratio of 34.4%. After capital reserves it is $24,634, and the second figure is the one that reflects what the building actually costs to keep.

An arithmetic tool, not investment advice. Property returns depend on the local market, the condition of the building, financing terms and tax position, none of which a calculator can see. Verify the income and expense figures against actual statements rather than a seller's projection. NOI conventionally excludes mortgage payments, depreciation, income tax and capital expenditure. Excluding capital expenditure is the convention that causes the most trouble, because roofs and boilers are not optional. Vacancy, repairs and capital expenditure are the three line items most often left out of a listing's numbers, and together they routinely account for 20% to 30% of gross rent. A pro forma that omits them is a marketing document, not an analysis.

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Questions

About this calculator

Why is the mortgage not an operating expense?

Because NOI describes the property, not the owner's financing. Two owners of the same building with different loans have the same NOI.

How much should I reserve for capital items?

Commonly 5% to 10% of gross rent, more on an older building. Working it out properly means listing the major components, their remaining life and replacement cost.

The formula

NOI = effective gross income - operating expenses, before financing and before capital items

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Estimating is the easy part

The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.