CAM Audit Rights in Commercial Leases

Most commercial leases include an audit clause that gives tenants the right to review the landlord's books and records related to CAM charges and operating expenses. Despite this, the majority of tenants never exercise this right — often because they are unaware it exists or unsure how to begin. Understanding your audit rights is the first step toward verifying that your charges are accurate.

Tenant Audit Rights

An audit clause in a commercial lease typically grants the tenant the right to inspect, review, or audit the landlord's records related to operating expenses and CAM charges. The specific rights vary by lease, but common provisions include:

• The right to review the landlord's books and records for the charges billed during the lease year
• The right to hire a third-party auditor or accountant to conduct the review
• The right to receive copies of invoices, contracts, and supporting documentation for billed expenses
• A requirement that the landlord make records available within a specified timeframe after a request

Some leases also include a provision that if the audit reveals an overcharge above a certain threshold — often 3% to 5% — the landlord must reimburse the tenant for the cost of the audit in addition to refunding the overcharge.

Review Periods

Audit clauses typically define a window during which the tenant must exercise their audit right. Common provisions include:

• Time limit after receiving the reconciliation statement — Many leases require tenants to initiate an audit within 90 to 180 days after receiving the annual CAM reconciliation statement
• Annual exercise window — Some leases allow audits only during a specific period each year, often tied to the lease year end
• Lookback period — The audit may cover only the most recent lease year, or the lease may permit a lookback covering multiple prior years

Missing the review period can mean forfeiting your audit right for that year. Tenants should calendar these deadlines as soon as they receive their reconciliation statement.

How Reconciliation Audits Work

A reconciliation audit compares the charges on the landlord's annual reconciliation statement against the terms of the lease. The process typically involves:

1. Reviewing the lease to identify permitted expense categories, excluded costs, fee caps, and pro rata share calculations
2. Examining each line item on the reconciliation statement to verify it falls within permitted categories
3. Checking mathematical accuracy — pro rata share percentages, totals, and year-over-year adjustments
4. Identifying charges that exceed CAM caps or violate escalation limits
5. Flagging capital expenditures that may have been improperly classified as operating expenses

For a detailed walkthrough, see our CAM reconciliation statement example.

Why Tenants Audit CAM Charges

Tenants audit CAM charges because reconciliation statements are prepared by the landlord or their property management company, and errors — whether accidental or intentional — are common. Without an audit, these errors compound year after year.

The most common reasons tenants exercise their audit rights include:

• Unexpected increases in CAM charges that are not explained by market conditions
• Suspicion that common overcharges may be present in their billing
• A lease renewal approaching, making it important to establish accurate baseline costs
• Learning that other tenants in the same property have identified billing errors through their own audits

LeaseGuard helps tenants exercise their audit rights by automating the comparison of lease terms against reconciliation charges. Upload your lease and reconciliation statement to receive findings in about 60 seconds. For a step-by-step overview, see our guide on how to audit CAM charges.