Skip to main content

CAM Billing Error Estimator

See how much CAM billing errors could cost you. We model it with benchmark rates.

CAM leakage means you under-bill tenants for common area costs. It comes from gross-up errors, missed caps, or math mistakes. Billing too much costs you too. CapVeri checks both ways. You charge the right amount.

Your Portfolio

1
$

Your Estimate

Estimated CAM billing errors per year

---

Property valuation impact (at 7% cap rate)

---

Enter your portfolio details above to see your estimate.

Modeled scenario rates: 0.25% (low) to 1.5% (high). Use your own portfolio history to calibrate assumptions.

See what CapVeri finds in your actual GL

Frequently Asked Questions

What is CAM leakage?
CAM leakage refers to the gap between what a landlord is entitled to recover from tenants under their lease terms and what they actually bill. Common causes include gross-up miscalculations, missed annual cap adjustments, incorrect pro-rata share calculations, and failure to bill for all recoverable expenses.
How much CAM leakage is typical?
Industry data suggests leakage rates vary widely, from less than 1% to over 3% of total operating expenses depending on portfolio size, lease complexity, and process maturity. For a 200,000 SF office building, even 1% leakage can represent $20,000+ in annual lost recovery.
What causes CAM billing errors?
The most common causes are: (1) gross-up not applied or applied incorrectly, (2) annual CAM cap escalators not tracked, (3) non-recoverable expenses included in tenant billings, (4) pro-rata share calculated on wrong square footage, and (5) base year amounts not adjusted for lease amendments.
How do I detect CAM leakage in my portfolio?
Start by comparing your lease terms to actual billings for each tenant. Check gross-up calculations against occupancy data, verify cap escalators are current, and confirm pro-rata shares match lease abstracts. Tools like CapVeri automate this comparison across your entire portfolio.

Related resources

This free tool only gives a rough guess. The numbers may be wrong. Check your own lease and records first. This is not legal or tax advice.

This estimate uses benchmark rates. CapVeri checks your real CAM numbers both ways. It catches over-billing and under-billing before statements go out. See how CapVeri checks your CAM.

Related Resources

Why CAM Numbers Don't Match YardiCAM Variance Investigation WorkflowRecovery Gap AnalyzerNOI Impact Calculator