Is CapEx an Operating Expense?
No. Capital expenditures are capitalized and depreciated, not expensed, so a new roof or HVAC system is not an operating expense. In real estate underwriting, though, a yearly reserve for those replacements is often counted as an operating expense before NOI, usually 5 to 10% of collected rent on small residential property.
CapEx vs OpEx
An operating expense keeps the property running this year: a plumbing call, paint between tenants, a furnace service. A capital expenditure buys or improves something that lasts more than a year: a roof, a new HVAC system, a kitchen remodel, a parking lot.
Operating expenses come off income in the year you pay them. Capital expenditures go on the balance sheet and are depreciated over their useful life.
| Cost | Usually treated as |
|---|---|
| Fixing a leak, patching drywall | Operating expense (repair) |
| Repainting between tenants | Operating expense |
| New roof | Capital expenditure |
| Replacing the HVAC system | Capital expenditure |
| Kitchen remodel that raises rent | Capital improvement |
| Yearly reserve for future replacements | Operating expense in most residential underwriting |
The reserve: CapEx in NOI without the lumpiness
Something big breaks on most rentals in most years, but never the same thing. Leaving capital costs out of NOI entirely makes a building with a 20-year-old roof look as profitable as one with a new roof. Deducting the actual spend makes NOI swing wildly from year to year.
The reserve solves both. The default $500,000 house sets aside 5% of collected rent, $2,280 a year, as an operating expense. Drop it and NOI rises to $31,172, which at 6.5% looks like about $35,000 of extra value that is not really there.
Residential and commercial conventions
Small residential underwriting usually puts the reserve above NOI. Commercial appraisals and broker packages often report NOI before reserves and list "replacement reserves" or "capital reserves" on a separate line below it.
Neither is wrong, but you cannot compare a statement from one convention with a cap rate from the other. Check where reserves sit before using a broker's NOI. The operating expense ratio guide gives the ranges that flag a missing reserve.
Repair or improvement for taxes
The IRS uses its own tests. Under the tangible property rules, work that betters, restores or adapts a unit of property must be capitalized. The de minimis safe harbor lets most small landlords expense items costing $2,500 or less per invoice or item.
That tax answer is separate from underwriting. For NOI, keep routine repairs in maintenance, keep a reserve for replacements, and leave value-adding improvements out entirely.
Run the numbers on your property
The calculator below is loaded with the $500,000 example. Change any line to see how capex moves NOI and value, or read the full operating expense checklist for every line that belongs above NOI.
Itemized income and expense lines
Net operating income (annual)
$28,892
$2,408 a month
Typical expenses ยท 37% ratioTypical. 30 to 45% of collected income covers expenses, the range most single-family and small multifamily rentals land in with every cost counted.
Income statement
- Gross scheduled income
- $48,000
- Vacancy and credit loss
- -$2,400
- Effective gross income
- $45,600
- Property taxes
- -$6,000
- Insurance
- -$2,500
- Maintenance
- -$2,280
- Capital reserves
- -$2,280
- Management
- -$3,648
- Total operating expenses
- -$16,708
- Net operating income
- $28,892
- Expense ratiooperating expenses / effective gross income
- 36.6%
- NOI marginNOI / effective gross income
- 63.4%
What this NOI is worth
- Value at a 6.50% cap rate
- $444,492
- Cap rate at this price$28,892 / $500,000
- 5.78%
- Priced above that value by
- $55,508
- Gross rent multiplierprice / gross scheduled income
- 10.4
What moves it
- Each $100/mo of rent addsof annual NOI after vacancy and percentage expenses
- $935
- Each point of vacancy costsof annual NOI
- $394
- Each $1,000 of NOI is worthat a 6.50% cap rate
- $15,385
CapEx and NOI questions
Does NOI include capital expenditures?
Actual capital spending, no. A reserve for future replacements, usually yes on residential property. Commercial statements often show NOI before reserves, so check which convention a number uses before you compare it.
How much should I reserve for capex on a rental?
5 to 10% of collected rent for most single-family and small multifamily rentals, at the high end for buildings over 40 years old or with old roofs and systems. On the default house, 5% is $2,280 a year.
Is a new roof an operating expense?
No. A full roof replacement is a capital expenditure. It is capitalized and depreciated, and in underwriting it is covered by the capex reserve rather than deducted in the year it happens. Patching a leak is a repair and is an operating expense.