What NOI leaves out, and why that matters to you

Nearly every number in a multifamily deal traces back to one line. Net operating income sets the valuation, satisfies the lender, and drives the projected return.

It is also a deliberately partial measure, and knowing what it excludes is more useful than knowing what it includes.

Start with what it is. Take all the income the property collects. Subtract the costs of running it: management, payroll, repairs, utilities, insurance, property taxes, marketing. What remains is net operating income. Multiply the relationship by a cap rate and you have a valuation.

Now the exclusions, and there are three that matter.

Debt service is not in NOI. The loan payment is treated as a financing decision rather than a property cost, which is reasonable in theory since two buyers could finance the same building differently. In practice it means a property can show healthy NOI and still not cover its mortgage.

Capital expenditures are not in NOI. Roofs, HVAC replacement, parking lots, unit renovations. These are treated as investments in the asset rather than costs of operating it. A building can post rising NOI in the same years it quietly falls apart.

Income taxes are not in NOI, and neither are the partnership's own costs, which is where fees to the sponsor often sit.

An illustration, not a real property. A building produces $800,000 of net operating income. The annual loan payment is $560,000. Capital work that year runs $120,000. The asset management fee is $40,000. NOI says $800,000. What actually remains for distribution is $80,000.

That is a ten percent difference between the headline number and the cash. Both figures are honest. They answer different questions.

This is also why two properties with identical NOI can be worth different amounts to you. One has a fixed rate loan maturing in nine years and a roof replaced last spring. The other has a floating rate loan maturing in twenty months and original mechanical systems. NOI cannot tell them apart. Cap rate valuation cannot either.

Three things to ask. What is the projected net operating income, and separately, what is the projected cash flow after debt service and capital spending? How much capital expenditure is budgeted per unit per year, and what is that number based on? Which fees are paid above the NOI line and which are paid below it?

That last question sorts out whose costs reduce the valuation and whose costs reduce your distribution.

NOI measures the building. It does not measure the investment.

When you last saw a projected NOI, did you see the cash flow number sitting underneath it?