CAM reconciliation: what each line claims and must prove
In short
A CAM reconciliation statement is the landlord's annual claim that actual recoverable expenses differed from the estimate, and it settles the difference. Each of its 6 lines rests on evidence of a different kind: the pool on invoices, the share on a measured denominator, the gross-up on an occupancy figure, the cap on the prior capped base.
Key takeaways
- The true-up settles estimate against actual. It is a claim with 6 components, not an invoice to check for arithmetic.
- Each line answers to different evidence: invoices, a measured denominator, an occupancy figure, a prior capped base.
- The denominator is never sent with the statement, and it moves the bill as much as the expense pool does.
- Next year's estimate is reset from this year's actual, which is why a wrong pool bills you twice.
- The review clock normally runs from delivery, so store the received date, not the date printed on the statement.
A CAM reconciliation statement — the true-up — is the landlord's annual claim that actual recoverable expenses differed from the estimate a tenant paid monthly, and that the difference is now due one way or the other. It is a claim, not a bill. Every figure rests on evidence held by somebody else, so read it by asking what each line would produce if challenged.
That framing matters because reviewers check the arithmetic, which is almost never where the money is. The sums usually add up. The 3 questions worth asking: did the expense belong in the pool, is the denominator behind the share the one the lease specifies, and did an adjustment touch lines it may not.
Every line, and the document standing behind it
| Component | What the line asserts | What must support it |
|---|---|---|
| Expense pool | These costs were incurred and are recoverable here | Invoices and the ledger, at a category level a challenge can test |
| Exclusions | Non-recoverable costs have been removed | The lease's exclusion list applied line by line, not a percentage |
| Gross-up | Variable costs restated to a stated occupancy | An occupancy figure, and a variable-or-fixed split per line |
| Cap | The increase is within the contractual ceiling | The prior year's capped base, and the cap's structure |
| Pro rata share | This tenant's percentage of the pool | A measured area over a stated denominator |
| Credits | Estimates paid, plus recoveries and abatements | The billing ledger, matched to what the tenant actually paid |
2 rows carry disproportionate weight. Capital work presented as an operating expense sits in the pool row and is often the largest single item in dispute. Gross-up sits 1 row below and is the most over-applied — its boundary is in which lines a gross-up may touch.
The number that is never sent with the statement
A share is a fraction, and statements print the percentage rather than the fraction behind it. 2 decisions sit underneath. The numerator is the premises area, which depends on the measurement standard the lease names — a published standard such as BOMA's, or a bespoke definition. Check which standard and which edition: remeasurement between editions changes areas without anything physical changing.
The denominator is the sharper question: total rentable area, or occupied area only. An occupied-area denominator raises every remaining tenant's share as the building empties — the outcome a gross-up was meant to prevent. A statement showing both a gross-up and an occupied-area denominator charges for the same vacancy twice, and that is the first question to ask.
Estimate, actual, and a settlement that is not a bill
The bottom line is a difference: actual share less estimates paid. Positive, and a balance is due; negative, and the tenant is normally credited against future estimates rather than refunded. An estimate is provisional by design, unlike a quoted figure that simply moves overnight — the distinction in the rent we quoted on Monday is not the rent today.
Keep the true-up separate from base rent escalation in the record. Both appear as increases and come from different sources — one from a building's expenses, the other from a schedule or an index, as in fixed steps or index-linked escalation. Merging them into one adjustment line hides which mechanism produced the money.
The date at the top is not the date that counts
Leases commonly require delivery within a set period after year end, and response and audit rights commonly run from delivery rather than the statement's own date. The 2 can be months apart. Store the received date as a field of its own, with delivery evidence: a statement dated March and delivered in July gives different deadlines depending on which date the system believed.
The same applies to a period that ended with the tenancy. A stub-year true-up lands after the tenant has gone, and if they stayed on past expiry the share continues on whatever basis the holdover clause sets — which is why expiry and the reconciliation window belong in one record.
The fields that let the statement be recomputed rather than believed
- Pool by category, not 1 total. A single recoverable-expenses figure cannot be tested against anything.
- Denominator and its basis, stored as total or occupied, with the measurement standard named.
- Occupancy for the year and the gross-up target, kept separate.
- Capped base carried forward: next year's ceiling comes from this year's capped figure, not from what was billed.
- Received date and delivery evidence, which start every window that follows.
Ask what each line would produce if challenged. The arithmetic on a true-up is almost always right, and almost never the point.
None of this is legal or accounting advice, and reviewing a live statement is a separate exercise with its own order of operations, covered across the lease administration topic. Building the record that makes a statement recomputable is scope we take under MVP and product builds for property teams.
Frequently asked questions
Short answers to the follow-ups this page tends to raise.
What is the difference between a CAM statement and a CAM reconciliation?
A CAM statement can be either the periodic estimate a tenant pays against or the annual reconciliation that settles those estimates against actual expenses. Reconciliation, or true-up, always means the second. A document that does not show estimates paid, actual expenses and the difference is not a reconciliation, whatever it is titled.
When should a CAM reconciliation statement arrive?
Within whatever period the lease specifies after the year end — worth checking rather than assuming, because it varies and some leases attach consequences to late delivery. Record the date the statement was received alongside the date printed on it: review and objection rights commonly run from delivery, so the 2 dates produce different deadlines.
Can a landlord include capital expenditure in CAM charges?
Only to the extent the lease allows, and this is the line most disputes turn on. Many leases permit recovery of capital items that reduce operating costs or are required by law, usually amortised over a useful life rather than expensed in one year. A roof replacement appearing as a single-year repair is the pattern to check, and the test is the lease's wording rather than an accounting principle.
- lease administration
- CAM reconciliation
- operating expenses
- commercial leases
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Builds from our portfolio that this page draws on.
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An AI property-operations platform that triages every maintenance request, tracks rent to the unit, and dispatches the right vendor across a residential portfolio.
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