CAM Reconciliation Checklist

Work through this once per property per reconciliation year. The order matters: expenses first, then lease rules, then allocations, then tenant communication. Skipping ahead is how a reconciliation gets rebuilt in March.

Updated September 27, 2026 · Commercial property operations guidance, not legal, accounting, or tax advice.

1. Close the expense year

  • Pull every operating expense for the reconciliation period from the bank feed, statements, or ledger, with the invoice or receipt for each.
  • Separate recoverable operating expenses from non-recoverable (HOUSE) costs: capital items, leasing commissions, owner overhead, debt service, depreciation.
  • Confirm the management fee treatment: recoverable up to the lease's stated percentage, if any, and excluded above it.
  • Tag each expense to a category that matches the lease's recoverable-expense definitions (taxes, insurance, CAM, utilities, security, landscaping, snow, repairs, administration).
  • Reconcile the category totals back to the bank: total spend minus HOUSE costs should equal the recoverable pool.

2. Confirm each lease's rules

  • For every tenant, confirm the pro-rata denominator the lease uses: total rentable area, leased area, or a gross-up to an assumed occupancy.
  • Note any cap on controllable expenses (cumulative or non-cumulative), and which categories the lease treats as uncontrollable (usually taxes, insurance, utilities, snow).
  • Note any base-year or expense-stop provision and the base-year amount.
  • Note exclusions specific to the lease (roof, structure, parking lot resurfacing, capital improvements, prior-year costs).
  • Note the administrative fee percentage, if any, and what it applies to.
  • Confirm occupancy dates for tenants who moved in or out during the year, for proration.

3. Calculate and check

  • Compute each tenant's share of each category using its own lease rules, not one property-wide formula.
  • Apply caps, base years, and exclusions per tenant; record the uncapped figure alongside the capped one.
  • Total estimates billed to each tenant during the year, and payments actually received.
  • Derive the true-up (share less estimates paid) and check that all tenant shares plus the landlord's vacancy share sum back to the recoverable pool.
  • Compare each tenant's share to last year's and explain any change over 10% before the tenant asks.

4. Communicate and record

  • Send each tenant a reconciliation statement within the deadline the lease specifies (often 90–180 days after year-end), showing the pool, the share calculation, estimates paid, and the balance.
  • Include the lease section references the calculation relies on.
  • Set next year's monthly estimate from this year's actual, adjusted for known changes (a tax reassessment, an insurance renewal).
  • Log the date each statement was sent, and calendar the tenant's audit-right window if the lease grants one.
  • Archive the workpapers: expense detail, lease rule summary, allocation schedule, statements, and correspondence, in one folder per year.