CAM overcharges affect commercial tenants of every type — retail operators, office tenants, medical practices, franchise owners, and small businesses. These overcharges aren't usually the result of intentional fraud. More often, they stem from administrative errors, vague lease language, or disagreements about how certain provisions should be interpreted. But regardless of the cause, the financial impact is real: tenants who don't review their CAM reconciliation statements may be overpaying by thousands of dollars every year.
Here are five of the most commonly overlooked CAM overcharges that commercial tenants should watch for.
1. Capital Expenditures Charged as Operating Expenses
This is arguably the most common and most costly CAM overcharge. There's an important distinction between a repair (operating expense) and a capital improvement (the landlord's investment in the property):
- Operating expense: Fixing a section of the parking lot, patching a roof leak, repairing an HVAC unit.
- Capital expenditure: Replacing the entire parking lot, installing a new roof, replacing the HVAC system.
Most leases either exclude capital expenditures entirely or require them to be amortized over their useful life (for example, a $100,000 roof replacement amortized over 15 years would be roughly $6,700 per year, not $100,000 in a single year).
The problem is that the line between "repair" and "replacement" is often blurry, and property managers sometimes classify major projects as repairs to pass the full cost through immediately. If you see a large, one-time charge in categories like "building maintenance," "repairs," or "structural," dig deeper. Ask for the underlying invoices and determine whether the work constitutes a capital improvement.
2. Management Fee Overcharges
Property management fees are typically calculated as a percentage of total operating expenses — usually between 3% and 8%. The overcharge risk comes from multiple angles:
- Inflated base costs: If other CAM charges are inflated, the management fee (as a percentage of those charges) is automatically inflated too. This creates a compounding effect.
- Wrong percentage: The lease specifies 4%, but the reconciliation applies 6%. In a complex reconciliation with dozens of line items, this is easy to miss.
- Double-charging: Some landlords charge both a management fee and separate administrative charges for functions that should be covered by the management fee (like accounting, vendor coordination, or supervision).
- Fee applied to excluded expenses: If the lease excludes certain costs from CAM, the management fee percentage shouldn't be applied to those costs either — but sometimes it is.
3. Costs That Should Be Excluded Under the Lease
Most well-drafted commercial leases include a list of expenses that are explicitly excluded from CAM pass-throughs. Common exclusions include:
- Costs of constructing or renovating the building
- Leasing commissions and advertising costs
- Legal fees related to tenant disputes or lease negotiations
- Costs reimbursed by insurance or warranties
- Depreciation on the building or its systems
- Mortgage payments or debt service
- Costs attributable to the landlord's own space
The challenge is that reconciliation statements don't always use the same terminology as the lease. A lease might exclude "costs of marketing the property," but the reconciliation might list it under "community development" or "property promotion." Identifying these mismatches requires careful cross-referencing between your lease language and the statement line items.
4. Incorrect Proportionate Share Calculations
Your proportionate share of CAM is based on the ratio of your leased space to the total leasable area. Errors here affect every single expense category on your statement. Common mistakes include:
- Wrong tenant square footage: Your lease says 3,200 square feet, but the reconciliation uses 3,400.
- Wrong building square footage: The total leasable area may have changed due to renovation or remeasurement, but your statement wasn't updated.
- Missing gross-up: When the building isn't fully occupied, variable costs should be adjusted upward to simulate full occupancy. If the landlord doesn't apply this adjustment, you may be subsidizing vacant space.
- Inconsistent shares: Some landlords use different proportionate shares for different expense pools (for example, a building share vs. a complex share) without lease authorization.
5. CAM Cap Violations
If your lease includes a CAM cap, it places a ceiling on how much your CAM charges can increase year over year. Cap violations are surprisingly common because:
- Property managers may not be aware of every tenant's individual cap provisions.
- Cumulative vs. non-cumulative caps are frequently confused in calculations.
- The landlord may apply the cap to the wrong expense categories (for example, including uncontrollable expenses that should be outside the cap).
- The wrong base year is used as the starting point.
Cap violations tend to get worse over time. A miscalculated base in Year 1 compounds in every subsequent year, potentially resulting in thousands of dollars in cumulative overcharges.
Why These Overcharges Go Unnoticed
The reason these issues persist isn't that tenants are careless — it's that CAM reconciliation statements are dense, technical documents, and comparing them line by line against a complex lease agreement is time-consuming. Many small business owners, franchise operators, and medical practice managers simply don't have the time or expertise to do it every year.
What to Do If You Find Overcharges
- Document everything. Note the specific charges you believe are incorrect and the lease provisions they violate.
- Contact your landlord or property manager. Start with a written inquiry. Many overcharges are resolved through simple communication.
- Exercise your audit rights. If the landlord disagrees, your lease likely grants you the right to inspect the underlying books and records.
- Consider professional help. For large discrepancies, a professional CAM auditor or commercial real estate attorney can help you recover the overcharges.
For a complete walkthrough of the audit process, see our step-by-step CAM audit guide.
How LeaseGuard Helps
LeaseGuard was designed to address exactly these issues. By uploading both your lease and your CAM reconciliation statement, the platform cross-references the two documents to identify potential discrepancies across all five categories described above — from capital expense classification to CAM cap compliance to excluded cost pass-throughs to management fee calculations. The analysis is delivered in about 60 seconds, giving you a clear picture of where to focus your review.
Key Takeaways
- Capital expenditures disguised as operating expenses are the most costly overcharge
- Management fees compound other overcharges — always verify the percentage
- Cross-reference your reconciliation against your lease's exclusion list
- Even a small proportionate share error affects every line item on your statement
- CAM cap violations accumulate over time and can cost thousands over a lease term