Capital vs. Operating Costs in CAM: How to Tell the Difference
The reconciliation arrived for a law firm tenant in a 12-story office building. The CAM pool came in at $2.4 million for the year, of which the firm's pro-rata share was 3.1 percent, or $74,400. The estimates collected during the year covered $58,000, so the bill was for $16,400. For more context, see CAM red flags accounting firms track.
One line item in the supporting detail caught the controller's eye: "Building System Upgrade, $480,000." It was 20 percent of the entire CAM pool. It was also almost certainly a capital improvement.
The question that follows is the one most controllers do not have time to research: should that $480,000 even be in the CAM pool, and if not, what does the law firm tenant actually owe? The answer involves lease interpretation, accounting classification, and a willingness to push back on a bill the landlord has presented as final.
This article explains how to recognize capital items hiding inside a CAM reconciliation, what most leases actually allow, and where the controller-to-specialist handoff belongs.
Capital Improvement (in CAM context): An expenditure that extends the useful life of a building system, adds capacity, or replaces a major component as a unit. Capital improvements are typically excluded from CAM under most well-drafted commercial leases because they benefit the landlord''s long-term asset value rather than the tenant''s ongoing occupancy. Common examples include roof replacement, parking lot resurfacing, HVAC system replacement, elevator modernization, and structural repairs.
The accounting framework
The capital-versus-operating distinction is not unique to CAM. It is a standard accounting question with a body of guidance in both GAAP and the Internal Revenue Code's tangible property regulations. The basic framework:
Operating expenses (recoverable in CAM, generally). Routine maintenance, repairs that restore an asset to working condition without extending its useful life, supplies, services, and labor associated with running the property. Examples: landscaping, janitorial, HVAC servicing, light bulb replacement, parking lot striping, snow removal.
Capital expenditures (excluded from CAM, generally). Expenditures that extend useful life, add capacity, or replace a unit of property. Examples: roof replacement, full HVAC system replacement, parking lot resurfacing, elevator modernization, fire suppression system replacement, exterior cladding replacement.
The distinction in the IRS tangible property regulations (the betterment, restoration, or adaptation tests) is more nuanced than this summary, but for CAM review purposes the simple test is useful: did this expenditure replace a major system or component as a unit, or did it just keep the existing system running another year?
Why this distinction shows up in leases
Commercial leases written in the past 25 years almost always have a capital exclusion clause in the operating expense section. Typical language:
Operating Expenses shall not include any costs which are capitalized in accordance with generally accepted accounting principles, including without limitation any costs of structural repairs, replacement of major building systems, capital improvements, or any costs incurred in connection with the construction or addition of new improvements.
The exclusion exists because of the underlying economics. The tenant is paying CAM to receive the use of the building. The landlord is the owner of the asset. When the landlord replaces the roof, the building is more valuable, which benefits the landlord. The tenant gets a roof either way as part of their lease. Asking the tenant to fund the roof replacement is asking the tenant to subsidize the landlord's capital improvement to the asset.
Some leases carve out narrow exceptions:
- Capital items required by law (ADA, fire code, environmental compliance)
- Capital items installed to reduce operating expenses, amortized and recovered only to the extent of actual savings
- Capital items below a stated dollar threshold
Even with carve-outs, the default in most well-drafted leases is exclusion.
How capital items end up in the pool
Three common pathways:
The landlord's accounting treats the item as a repair. A property management company that internally classifies a $480,000 roof replacement as "Roof Repair" on the GL will pass the cost through to CAM by default. The lease language requires the exclusion be applied at the reconciliation level, but if the property manager is not reviewing each line item against the lease, the cost flows through.
The bill is bundled. A vendor invoice for $84,000 labeled "HVAC Service" actually includes $62,000 for replacement of two rooftop units and $22,000 for routine servicing. The landlord codes the entire $84,000 to HVAC Maintenance and the bundled cost flows through. The repair portion is recoverable, the replacement portion is not.
The capital item is amortized improperly. Some leases allow recovery of capital items amortized over their useful life. The landlord includes the full cost in CAM in the year incurred instead of amortizing. This is a timing error that moves the charge from a future year (where some recovery may have been allowed) to the current year (where the full cost is being recovered improperly).
Spotting the line item
The reconciliation statement rarely labels a capital item as "capital." A useful set of pattern flags:
- Dollar amounts that are 10 percent or more of the total CAM pool concentrated in a single line item
- Vendor names that indicate construction (roofing contractor, paving contractor, mechanical contractor) rather than service (landscaper, janitorial service, HVAC service company)
- Line item descriptions like "Building Improvements," "Major Repair," "System Upgrade," or "Roof Work"
- Amounts that are dramatically larger than prior years for the same category
- One-time charges with no corresponding figure in prior year reconciliations
When any of these patterns shows up, the next step is to request the underlying invoice and vendor scope-of-work in writing. Most leases give the tenant the right to request this documentation. The landlord's response (or refusal to respond) is itself diagnostic.
"Capital items in CAM are the highest-dollar findings I see when running reconciliations. A single roof replacement charge can be $200,000 to $600,000 in the pool, of which the tenant''s share might be $6,000 to $30,000 depending on pro-rata. The line item is rarely hidden, it is just unchallenged. The lease excludes it, the bill includes it, and nobody pushes back because nobody opened the lease." — CAMAudit field notes after testing reconciliation samples from published audit cases
What the bookkeeper sees versus what the controller sees
The bookkeeper sees the reconciliation arrive, codes the bill to Occupancy Expense, and moves on. The capital item is invisible at that level because the bookkeeper does not have the lease open and does not have the underlying invoice detail.
The controller, working with the lease and the line-item detail, sees the pattern. The right division of labor is:
Bookkeeper. Receives the reconciliation. Posts to a clearing account if the amount exceeds a threshold (often $5,000 or 5 percent of annual CAM, whichever is higher) instead of directly to expense. Sends the reconciliation and any supporting detail to the controller.
Controller. Reviews the reconciliation against the lease. Checks pro-rata share, CAM cap, base year (if applicable), and exclusion list. Flags any line item that looks like a capital improvement. Requests supporting documentation from the landlord on flagged items.
Specialist. Takes the controller's review when the variance, complexity, or dollar amount exceeds in-house capacity. Performs the formal review, prepares the dispute letter draft if findings warrant, and works with the client and tenant counsel on recovery.
The bookkeeper's contribution is the threshold decision: do not post a large reconciliation directly to expense without controller review. That single discipline catches most capital findings before they become payments that are hard to claw back.
When the line item is genuinely a repair
Not every large line item is capital. Some signals that the item is genuinely operating:
- The amount is consistent with prior years' reconciliations for the same category
- The vendor is a recurring service provider (landscape company, janitorial service)
- The work is described as servicing or maintaining an existing system
- The dollar amount is small relative to the value of the underlying system
A $14,000 line item for "Parking Lot Maintenance" that includes annual seal coating and striping is operating. A $140,000 line item labeled the same way in a year when the entire lot was resurfaced is capital. The label on the reconciliation is not the test. The underlying scope of work is the test.
Where the controller-to-specialist handoff belongs
Spot the red flag, preserve the document, escalate when it moves beyond bookkeeping review. The capital-versus-operating question moves from controller to specialist when:
- The dollar amount of the disputed item exceeds $25,000 in the CAM pool (often translating to $750 to $5,000 of tenant exposure depending on pro-rata)
- The lease language on capital exclusions is ambiguous or has carve-outs that need interpretation
- The landlord refuses to provide supporting documentation
- Multiple years of reconciliations may have included similar items
- The client's exposure exceeds the cost of a formal CAM audit
At that point the question is no longer accounting classification, it is a contract compliance and lease interpretation review. That is what specialist CAM audit services exist to perform, and the controller's role is to recognize the boundary and route the file before more time is spent reproducing work that the specialist will do anyway.