The Complete Guide to CAM Reconciliation

Common Area Maintenance (CAM) reconciliation is one of the most complex—and most dreaded—tasks in commercial property management. This guide breaks down the process into manageable steps and shows you how to make it less painful.

What is CAM Reconciliation?

CAM charges cover the shared expenses of operating a commercial property: landscaping, parking lot maintenance, common area utilities, security, and more. Tenants typically pay estimated CAM charges monthly, and at year-end, you reconcile actual expenses against estimates.

Step 1: Define Your Expense Pools

Not all expenses are allocated the same way. Common pool structures include:

• General CAM: Shared by all tenants (landscaping, parking, common utilities)
• Building-specific: Shared only by tenants in that building
• Floor-specific: Shared by tenants on a particular floor
• Controllable vs. Non-controllable: Some leases cap controllable expense increases

Step 2: Track Expenses Accurately

Throughout the year, every expense must be properly categorized:

• Is it a CAM expense or a capital improvement?
• Which pool does it belong to?
• Is it controllable or non-controllable?
• What's the supporting documentation?

Step 3: Calculate Pro-Rata Shares

Each tenant's share is typically based on their square footage relative to the total:

Tenant's Pro-Rata Share = Tenant's Sq Ft / Total Leasable Sq Ft

Example:
Tenant A: 5,000 sq ft
Total Building: 50,000 sq ft
Pro-Rata Share: 5,000 / 50,000 = 10%

Watch out for:

• Vacant spaces (do they count in the denominator?)
• Tenants with CAM caps
• Gross lease tenants who don't pay CAM
• Base year stops

Step 4: Generate Reconciliation Statements

Each tenant needs a clear statement showing:

1. 1Total actual CAM expenses for the year
2. 2Their pro-rata share percentage
3. 3Their share of actual expenses
4. 4Total estimated CAM they paid
5. 5Amount due or credit

Step 5: Handle Disputes

Tenants have audit rights. Be prepared to:

• Provide detailed expense breakdowns
• Show invoices and receipts
• Explain allocation methodology
• Justify any unusual expenses

Good documentation throughout the year makes disputes much easier to resolve.

Common CAM Reconciliation Mistakes

1. 1Including capital improvements: These are typically excluded from CAM
2. 2Forgetting CAM caps: Some tenants have annual increase limits
3. 3Wrong base year: Tenants often only pay increases over their base year
4. 4Timing errors: Expenses must fall within the reconciliation period
5. 5Missing gross lease exclusions: Not all tenants pay CAM

How Software Helps

Modern property management software like Plazee automates much of this:

• Expenses are coded to pools as you enter them
• Pro-rata shares calculate automatically based on lease data
• CAM caps and base years are applied per tenant
• Reconciliation statements generate with one click
• Historical data is available for audits