Glossary · Capital and reserves

Capital expenditure versus operating expense

Also called CapEx, OpEx, Capital expenditure.

An operating expense keeps a property running in its current condition and is deducted above the net operating income line. A capital expenditure replaces or improves a component with a life beyond the current year and is deducted below it. Which side of the line an item lands on changes the property's value.

Updated August 6, 2026 · All terms

How it works

The economic test is useful life. Patching a roof is a repair; replacing the roof is capital. Fixing an HVAC unit is a repair; replacing the plant is capital. Turning a unit with paint and cleaning is a repair; renovating it to command a rent premium is capital. Tax rules and accounting policy add their own tests, but for underwriting purposes the useful-life question is the one that matters, because it determines whether the cost reduces NOI.

Misclassification runs in both directions and each has a different tell. Capital work booked as a repair depresses trailing NOI, which sounds like it favours a buyer until you realise the seller is marketing on a pro forma that already excludes it. Repairs booked as capital inflate trailing NOI and, at a low cap rate, inflate the asking price by many multiples of the misclassified amount.

Both sides of the line are real cash. A property that spends $700,000 a year on capital items is spending it whether or not the NOI reflects it, and the levered cash flow, the equity multiple and the IRR all feel it. NOI is a valuation convention, not a cash flow.

Worked example

One misclassified line, at a 5.40 percent cap rate

Illustrative. A roof replacement sits in the repairs and maintenance line of a trailing statement.

Repairs and maintenance as presented$412,000
Roof replacement inside it$196,000
Normalised repairs and maintenance$216,000
NOI as presented$2,824,000
NOI with the roof reclassified$3,020,000
Value difference at a 5.40% cap$3,629,630

The reclassification is correct and it raises the value by $3.6 million. It also means $196,000 of real cash left the building, and that money has to appear somewhere in the model. Moving it below the line is not the same as making it disappear.

Conventions worth knowing

  • Ask for a capital expenditure schedule covering the last three to five years alongside the operating statements. What an owner has actually spent is a better guide to what you will spend than any per-unit convention.
  • Deferred maintenance found in a property condition report is not an operating expense and not a reserve. It is a funded capital item in the sources and uses at closing.

The common mistake

Moving capital costs below the line and then never funding them

Reclassifying capital work out of operating expenses is correct and it raises NOI and therefore value. What frequently follows is that the cost is never picked up again anywhere else. The model shows a higher NOI, a higher valuation and a levered cash flow that quietly assumes the roof was free. Every dollar reclassified above the line has to reappear either in the capital budget at closing or in the annual reserve, and if it does neither, the model has manufactured value out of a formatting decision.

Related terms

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