CAM Audit Checklist: 12 Items to Verify Before Paying Your Reconciliation

A CAM audit checklist is a structured review of the annual common area maintenance reconciliation statement that verifies expense categories, calculations, and allocations against the specific terms of your lease. Working through the checklist before paying the reconciliation balance is the most reliable way to identify overcharges while the dispute window is still open.

Tango Analytics (2023) found material errors in 40% of commercial CAM reconciliations reviewed. Most errors are systematic, meaning they repeat across every year of the lease until identified and corrected.

Key Takeaways

• Complete this checklist before paying the reconciliation balance. Your dispute window begins the day the statement is delivered.
• The management fee and pro-rata share items produce the largest overcharges most frequently. Prioritize those two if time is limited.
• Items 6 and 7 (gross-up and CAM cap) require more calculation time but often produce the largest dollar recoveries in office leases.
• This checklist covers the same 12 categories checked by CamAudit's forensic detection engine.
• Run a free forensic scan to automate the checklist in under five minutes.

Before You Start

Gather these documents before working through the checklist:

• The executed lease and all amendments
• The annual CAM reconciliation statement for the year under review
• The prior year reconciliation statement (for year-over-year comparison)
• Your lease's CAM definition, management fee provision, pro-rata share definition, gross-up clause, and CAM cap provision

If any amendment modifies the original lease's CAM terms, use the amendment language, not the original.

The 12-Item CAM Audit Checklist

Item 1: Verify Lease Type Compliance

Check: Are any charges included that are inconsistent with your lease type?

In a gross lease, operating expenses are the landlord's responsibility. In a modified gross or NNN lease, only expenses within the defined CAM pool are recoverable. Some landlords include expenses in the CAM pool that are non-recoverable under the lease type regardless of how they are labeled.

• Compare the lease type to the CAM pool structure
• Flag any line items that appear non-recoverable based on your lease classification
• Flag landlord overhead, corporate costs, or off-site expenses

Item 2: Verify Excluded Expense Categories

Check: Does the statement include any categories your lease explicitly excludes?

Most commercial leases list expenses that are excluded from the CAM pool: capital expenditures, leasing commissions, income taxes on the landlord's income, depreciation, executive salaries, and similar items.

• Locate the exclusion list in your lease
• Cross-reference each exclusion against the reconciliation line items
• Flag any line item that matches or likely falls within an exclusion category

Item 3: Verify the Management Fee

Check: Does the stated management fee comply with your lease's rate and base?

This is the single most common and financially significant overcharge category.

• Find the management fee cap in your lease (typically 3% to 5%)
• Identify the base the fee is calculated on (controllable expenses, gross revenues, all operating expenses, etc.)
• Calculate the maximum permitted fee: Lease Rate × Permitted Base
• Compare to the stated management fee
• Check for fee-on-fee stacking: if the management fee itself is included in the base, the fee compounds circularly
• Check for undisclosed "administrative fees" or "property management overhead" that may duplicate the management fee

Overcharge formula: (Stated Fee - Maximum Permitted Fee) = Management Fee Overcharge

Item 4: Verify the Pro-Rata Share

Check: Is the tenant's percentage calculated from the correct denominator?

• Find the pro-rata share definition in your lease (denominator definition)
• Confirm your tenant RSF matches the lease
• Obtain or verify the denominator RSF
• Calculate your correct share: Tenant RSF / Denominator RSF
• Compare to the landlord's stated percentage
• If your share differs by more than 0.1%, calculate the annual overcharge: (Stated % - Correct %) × Total Allocable Expenses

For multi-tenant retail properties, check whether anchor tenant square footage exclusion from the denominator is matched by a corresponding exclusion from the expense pool.

Item 5: Classify Capital vs. Operating Expenses

Check: Are any capital improvements billed as operating expenses?

Under IRS Rev. Proc. 2019-43, expenditures with useful lives exceeding one year are capital in nature and should not appear as single-year operating expenses. (Source) Common misclassifications: HVAC system replacement, roof replacement, parking lot resurfacing, elevator overhauls, and major electrical upgrades.

• Review large single-year expense line items
• Identify any items with descriptions suggesting replacements (vs. maintenance/repairs)
• Flag items likely to have useful lives exceeding one year
• Check whether the item is listed in your lease's CapEx exclusion clause

Item 6: Verify Gross-Up Eligibility

Check: Was gross-up applied only to variable expenses?

If the reconciliation includes a gross-up adjustment, verify that it was applied only to expenses that actually vary with occupancy.

• Identify all expenses where gross-up was applied
• Classify each as variable (eligible) or fixed (ineligible):
  • Variable and eligible: janitorial, utilities, trash removal, occupancy-dependent security
  • Fixed and ineligible: property taxes, insurance, fixed-rate landscaping contracts
• For each ineligible grossed-up expense: calculate the overcharge as (Grossed-Up Amount - Actual Expense) × Tenant Pro-Rata Share

Item 7: Verify CAM Cap Compliance

Check: Do the billed controllable expenses comply with the lease's CAM cap?

If your lease includes a CAM cap (common in retail and office leases), verify that the annual cap ceiling was not breached.

• Locate the cap provision and identify: cap rate, cap type (cumulative, compounded, non-cumulative), and which expenses are subject to the cap
• Calculate the cap ceiling for the current year using the correct formula
• Compare total billed controllable expenses to the cap ceiling
• If billed exceeds ceiling: (Billed - Ceiling) = Cap Violation Overcharge

Item 8: Verify Base Year or Expense Stop Compliance

Check: Is the correct base year used, and was it grossed up if required?

For modified gross and full-service leases:

• Confirm the base year used matches the lease definition
• If building occupancy was below 90% in the base year, verify that variable expenses were grossed up
• Confirm expense categories in the base year match the categories in the current year (no phantom increases from new categories)

Item 9: Verify Insurance Pass-Throughs

Check: Are insurance premiums for coverage types permitted by your lease?

• Locate your lease's insurance provision (which types the landlord may pass through)
• Compare stated coverage types to the permitted list
• Flag coverage types not listed or not standard for property operations
• Check whether the stated premium reflects the actual cost or includes landlord-retained commissions

In London Trocadero (2015) LLP v. Picturehouse Cinemas Limited [2025] EWHC 1247 (Ch), the court held a landlord could not include retained insurance commissions in billed premiums and ordered repayment. (Source)

Item 10: Verify Property Tax Allocation

Check: Are only property taxes attributable to your property included?

• Confirm taxes on the statement relate only to your property
• Flag any state franchise taxes, income taxes, or taxes from related entities
• For California properties: verify whether any post-sale Prop 13 reassessment increase is being passed through, and whether your lease's tax provision addresses reassessment charges

Item 11: Verify Utility Billing

Check: Are any utilities double-billed?

If your lease includes a direct-pay provision (you pay utilities directly to the provider), verify that the same utilities do not also appear in the CAM pool.

• Identify any utilities covered by a direct-pay provision in your lease
• Cross-reference against the CAM reconciliation
• Flag any utility that appears in both your direct bills and the landlord's CAM pool

Item 12: Verify Common Area Expense Classification

Check: Are any non-common-area expenses allocated to the shared CAM pool?

Expenses that serve only one tenant's space should not appear in the shared pool. Examples: dedicated HVAC systems serving a single tenant's space, exterior improvements serving only one storefront, or internal corridor costs from a single-tenant buildout.

• Review line items for any description suggesting work serving a specific tenant or non-common area
• Flag costs attributable to tenant-specific improvements or services

After the Checklist: Next Steps

The free forensic scan at CamAudit automates all 12 checklist items, extracts your lease terms, classifies each expense, and generates a dispute letter draft for any findings above your confidence threshold. The process takes in under five minutes.

Related Resources

Audit process:

• How to audit CAM charges : Step-by-step audit process
• What is a lease audit? : Complete guide
• CAM overcharge detection playbook : 12-rule forensic framework

Specific checklist items:

• Management fee overcharge in CAM
• Pro-rata share calculator : Verify your percentage
• CAM gross-up calculation
• CAM cap calculator

Tools:

• Start Your Free Scan : Run all 12 checklist items automatically in under five minutes
• CAM Overcharge Estimator : Quick estimate before a full audit