CPA guide: how to review client CAM reconciliation statements
Every CPA with commercial real estate clients eventually gets the question: "This CAM reconciliation came in at $14,000 more than last year. Does this look right to you?"
Most CPAs are comfortable reviewing financial statements, operating expense schedules, and lease obligations under ASC 842. But the CAM reconciliation is a different document. It is a bill from the landlord, supported by the landlord's accounting, presented in whatever format the landlord chooses. Verifying it requires comparing the reconciliation to the lease terms, not just reviewing the numbers in isolation.
Here's what most CPAs who haven't done this before discover quickly: the document that matters most is not the reconciliation statement. It is the operating expense provisions in the lease. For a technical reference on what those provisions typically contain and which ones are negotiable, the CAM reconciliation clause negotiation guide is a useful parallel read.
CAM reconciliation statement: An annual document from a commercial landlord comparing estimated CAM charges collected during the year to actual operating expenses incurred. The tenant receives either a true-up invoice (if actual costs exceeded estimates) or a credit (if estimates exceeded actual). Errors in these statements are common and are the subject of tenant-side lease audits.
Why clients bring CAM reconciliations to their CPAs
Commercial tenants bring CAM questions to their CPAs because the reconciliation contains financial data and the CPA is the trusted financial advisor. The client's instinct is right: the CAM reconciliation is a financial document that deserves the same scrutiny as any other invoice.
But the CPA's standard financial review toolkit isn't fully equipped for this. Here's why:
The reconciliation is a landlord-prepared document. Unlike financial statements where the preparer follows GAAP, CAM reconciliations follow whatever accounting methodology the landlord's property manager uses, constrained only by the lease terms. There is no universal standard.
The relevant reference document is the lease, not accounting standards. Whether a line item in the reconciliation is appropriate depends on whether the lease permits it. A CPA reviewing the reconciliation needs to hold it against the lease's operating expense definition, exclusion list, and management fee cap.
The errors are often in the methodology, not the arithmetic. The math in a reconciliation is usually correct. The question is whether the inputs to that math are appropriate under the lease: is the denominator right, is the management fee within the cap, are capital items being treated as operating expenses.
A 20-minute CPA triage process
When a client brings a CAM reconciliation and asks if it looks right, here is a structured review process that takes approximately 20-30 minutes.
Step 1: Locate the relevant lease provisions (5 minutes). Find the lease and turn to the operating expense or CAM section. Identify: the management fee cap, the pro-rata share definition, the capital versus operating expense distinction, and the exclusion list. If the client doesn't have the lease, request it. You cannot review the reconciliation without it.
Step 2: Management fee check (5 minutes). This is the highest-yield single check. Find the management fee percentage in the reconciliation. Find the cap in the lease. If the reconciliation shows both a management fee and a separate administrative fee, add them together. Compare to the lease cap. For a deep dive into management fee overcharge detection, that article explains how the calculation works and the specific patterns CAMAudit flags.
A management fee of 4.8% against a 4% cap is a finding. A management fee of 3.8% plus an administrative fee of 1.5% against a 4% combined cap is a finding. This single check catches one of the most common overcharge categories.
Step 3: Year-over-year variance review (5 minutes). Compare current year total CAM to prior year total. Calculate the percentage increase. If the client has prior-year statements, compare individual line items to identify where the increase is concentrated.
General operating expense increases of more than 8%-10% without explanation warrant documentation requests. A single line item doubling from prior year is a red flag. Management, insurance, and maintenance line items are the most common sources of unexplained year-over-year spikes.
Step 4: Large line item identification (5 minutes). Identify the three or four largest line items in the reconciliation. For each: Is this a recurring operating expense or a capital project? If it's a capital project (parking resurfacing, roof replacement, HVAC replacement), does the lease require amortization? Capital items expensed in the current year rather than amortized are a common overcharge category. The excluded services CAM charges article covers the specific cost categories most often improperly included in the pool.
Step 5: Escalation decision. Based on steps 1-4: does this warrant a full audit? Signs that it does: management fee in excess of cap, unexplained year-over-year increase over 10%, large capital items billed as operating expenses, or a client with multiple locations showing the same patterns.
If any of these apply, the next step is a formal CAM audit, not a continued CPA review.
The specific red flags every CPA should know
Management fee percentage above the cap. Already covered, but worth restating: this is the most commonly recoverable finding in commercial lease audits.
Year-over-year increase of more than 10% in total CAM. Not necessarily wrong, but requires explanation. Operating costs don't typically jump 10%-15% year over year without a specific cause. Request an itemized explanation.
Unusual line items that don't resemble recurring operating expenses. "Special assessment," "legal fees recovery," "capital improvement amortization" without prior history, "executive services," or "development fee" line items all warrant clarification.
True-up amount disproportionate to the estimate pattern. If the client paid $2,000 per month in estimated CAM and receives a $18,000 true-up, that implies actual costs were 75% higher than estimated. Either estimates were deliberately low or costs jumped unexpectedly. Either way, investigate.
No itemization. A reconciliation that shows only a single "operating expenses" total without line items should always be questioned. Request the full itemized schedule.
More on that below when we cover what to ask the landlord for and how to document the dispute.
"I built CAMAudit because clients deserve the same verification on their landlord's bill that they get on their vendor invoices. CPAs are the right people to identify when something needs a deeper look. CAMAudit handles the lease-level forensics." — Angel Campa, Founder of CAMAudit
When to escalate to a formal CAM audit
The 20-minute triage process is not an audit. It is a screening. When the screen turns up red flags, a formal audit is warranted.
Signs that a formal audit is appropriate:
- Management fee violation confirmed
- Year-over-year increase cannot be explained by itemized documentation
- Capital items appearing as current-year expenses
- Client has multiple locations with similar issues
- The audit window is approaching (12-18 months from statement receipt)
At this point, the client has two options: hire a professional lease auditor on contingency, or use an automated audit tool like CAMAudit to run the forensic analysis at a flat fee.
CAMAudit processes the reconciliation against the lease and flags potential overcharges with specific findings. This gives both the CPA and the client a documented starting point for a formal dispute or a direct conversation with the landlord.
Documenting findings for the dispute
If you identify a potential overcharge, document it clearly before contacting the landlord. The documentation should include:
- The specific lease clause that controls the disputed item
- The amount billed in the reconciliation
- The correct amount under the lease terms
- The delta (recoverable amount per year)
- The number of years in the lookback window
- The total potential recovery
This documentation is what makes a dispute productive. A vague complaint ("this seems high") rarely gets traction. A specific finding ("management fee billed at 5.2% against a 4% lease cap, annual overcharge of $1,840 per year for three years, requesting credit of $5,520") is much harder to dismiss. Use the CAM overcharge estimator to quickly size the potential recovery before investing time in a full documentation request.
Questions CPAs ask about reviewing client CAM statements
Frequently Asked Questions
Do I need the lease to review a client's CAM reconciliation?
Yes. Without the lease, you cannot determine whether the line items in the reconciliation are appropriate, whether the management fee is within the cap, or whether the pro-rata share is calculated correctly. The lease is the reference document.
What is the most common CAM overcharge I should look for first?
Management fee violations: where the combined management and administrative fees exceed the lease cap. This is recoverable, clearly documented in both the reconciliation and the lease, and relatively easy to identify in a short review.
How do I know if a line item is a capital expense versus an operating expense?
Check the lease's definition of capital improvements. Most leases define capital improvements as items with a useful life beyond one year and above a certain cost threshold. Parking resurfacing, roof replacement, and HVAC system replacement are common capital items that sometimes appear as current-year operating expenses.
What should I request from the landlord to support a CAM audit?
The itemized general ledger for operating expenses for the relevant years, the rent roll showing tenant square footage and total leasable area, and any invoices or contracts for large line items. Your client's lease audit rights clause specifies the exact records the landlord is required to produce.
Can I refer clients to CAMAudit if they need a more detailed review?
Yes. CAMAudit is a flat-fee automated audit tool that processes reconciliation statements and flags potential overcharges based on lease terms. It is particularly useful for clients who need a systematic review before a formal dispute or for multi-location clients who need multiple statements reviewed.
Sources
- AICPA. Real estate accounting and lease audit resources for CPAs. https://www.aicpa.org/
- IREM (Institute of Real Estate Management). Operating expense reconciliation best practices. https://www.irem.org/
- FASB. ASC 842 lease accounting guidance. https://www.fasb.org/
- Tango Analytics. "CAM Reconciliation: Why tenants should verify the math." https://tangoanalytics.com/blog/cam-reconciliation/
Refer clients with complex CAM statements to CAMAudit. A free scan identifies which line items warrant a formal dispute before the audit window closes.