Property Management Tool

CAM Reconciliation
Calculator

Calculate each tenant's pro-rata share of Common Area Maintenance expenses based on square footage — and generate a clean billing breakdown you can send or print.

Common Area Maintenance (CAM) charges cover the shared costs of operating a commercial property — landscaping, parking lot upkeep, common area utilities, snow removal, property management fees, and similar expenses. Most commercial leases require tenants to reimburse their proportional share of these costs, calculated by their pro-rata share — their leased square footage divided by the building's total leasable square footage.

Why This Gets Messy

Small landlords often calculate CAM reconciliation by hand in a spreadsheet — one math error or a missed tenant and the whole billing cycle is off.

What This Tool Does

Enter your total CAM pool and each tenant's square footage — get an instant, accurate breakdown of what each tenant owes.

CAM Expense Pool
$
sq ft
%
Tenants
Tenant Square Footage
Tenant NameSquare FootagePro-Rata Share
Total Leased Square Footage 0 0%
Total CAM Pool (w/ Admin Fee)
amount being allocated
Cost Per Square Foot
based on total building sqft
Occupied / Allocated
of building square footage
Tenant Billing Breakdown
TenantSquare FootagePro-Rata ShareAmount Owed
Total Billed
✓ Saved to this browser
This tool provides a standard pro-rata CAM calculation based on square footage. Actual CAM reconciliation language varies by lease — some leases use gross-up provisions, exclusion lists, or caps on increases that this calculator does not account for. Always reconcile against your specific lease terms.