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CAM Reconciliation Lag Calculator
Slow CAM recon costs NOI carry.
Carry cost from lag
$30,000
Dispute exposure
$216,000
Total NOI drag
$73,200
How the math works
Avg receivable = annual CAM / 2. Carry = receivable × rate × months/12. Dispute = annual × %.
$900k × 8% × 5/12 = $30k carry. $216k dispute × 20% loss = $43k NOI drag. Total $73k.
How to Use
- Enter annual CAM billable.
- Enter months lag post year-end.
- Enter carry rate %.
- Enter disputes %.
- Read carry cost and dispute exposure.
Frequently Asked Questions
What's the lag?
CAM year ends Dec 31. Actual expenses compiled. Reconciliation calculated vs pro forma. Billing/credit sent to tenants. Industry standard: 90-180 days. Fast operators: 60 days. Slow: 365+ days. Each month of lag = tenant receivable continues to accrue.
Cost of lag?
$1M annual CAM, 6-month lag: $500k float burden. At 8% cost of capital: $40k/yr carry cost. On large portfolios with many properties: millions annually. Tight reconciliation discipline recovers NOI.
Disputes?
10-15% of CAM charges disputed by tenants typically. Resolved via lease audit, negotiation, settlement. Budget 3-5% of CAM for writeoffs. Audit-friendly tenants (large chains) challenge more often; small tenants pay without review.
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