The reconciliation statement arrives as a PDF attachment. It might be two pages or it might be twelve. Either way, the task is the same: figure out what it is saying, decide whether the number makes sense, and determine where it goes in the books. For more context, see positioning CAM advisory services.
This article walks through the structure of a CAM reconciliation statement section by section, explains what each part means in plain English, and identifies what to look for before coding the payment.
CAM reconciliation: A CAM reconciliation is the annual settlement process in which the landlord compares the total Common Area Maintenance expenses incurred for the building during the year to the estimated amounts the tenant paid monthly. The result is either a balance due from the tenant (if actual expenses exceeded the estimates) or a credit (if estimates exceeded actual expenses). The landlord documents this calculation in a reconciliation statement delivered to the tenant, typically in the first quarter of the following year.
The Four Sections of a Reconciliation Statement
Not every landlord uses the same format, but virtually every CAM reconciliation contains the same four pieces of information, even if they are presented differently.
1. The Total Expense Pool
This is the aggregate of all qualifying operating costs for the building for the year. On a well-formatted reconciliation, you will see a table listing expense categories with annual totals: janitorial ($48,000), landscaping ($22,000), property insurance ($71,000), real estate taxes ($195,000), property management fee ($89,000), common area utilities ($34,000), and so on.
The sum of all those categories is the total pool. On a 120,000 square foot office building, a total pool of $890,000 is not unusual. The pool is what the landlord spent. The next section determines how much of that the specific tenant owes.
If the statement only shows a total pool number without a category breakdown, that is a flag. The detail is what allows the bookkeeper or a reviewer to check whether excluded categories appeared in the pool. Requesting the backup detail before coding is a reasonable step for any balance above a few hundred dollars.
2. The Tenant Pro-Rata Share
The pro-rata share is the percentage used to allocate the pool to the specific tenant. It is derived from a formula in the lease, and the most common version is:
Tenant rentable square footage divided by total leasable building square footage
A dental practice occupying 2,400 square feet in a 120,000 square foot building has a pro-rata share of 2.0 percent. Two percent of the $890,000 pool is $17,800. That is the tenant's allocated share of building operating expenses for the year.
The reconciliation statement will typically state the pro-rata share as a percentage and show the calculation. Confirm it against the lease abstract before accepting it. The denominator matters: some leases specify total leasable square footage, others specify occupied square footage (which excludes vacant spaces), and some use total building square footage including non-rentable areas like stairwells and mechanical rooms. A different denominator produces a different percentage.
3. The Estimated Payments Already Made
The reconciliation credits the tenant for the monthly CAM estimates paid during the year. If the dental practice paid $1,200 per month for twelve months, this line shows $14,400. That amount is subtracted from the allocated share of $17,800.
Check this number against the actual payment history. Errors here are less common than errors in the expense pool, but they occur. A payment made in December that the landlord has not yet applied will make the balance due look larger than it should be. Bank records or the accounts payable ledger should confirm the total.
4. The Balance Due or Credit
The balance is the allocated share minus the estimated payments. In the example above, $17,800 minus $14,400 equals a balance due of $3,400. The statement will specify when this amount is due, typically 30 days from the date of the statement.
If the allocated share is less than the estimated payments, the result is a credit. A credit of $600 means the tenant overpaid during the year. The lease will specify whether this is refunded in cash, applied against future monthly estimates, or applied against the next month's rent.
What "Backup" Means and When to Request It
The word backup appears often in discussions of CAM reconciliations. It refers to the supporting documentation that substantiates the numbers on the statement.
For the expense pool, backup means the itemized list of building operating expenses the landlord included. This might be a general ledger extract, a schedule of invoices, or a categorized expense report. Without it, the total pool number is unverifiable.
For the pro-rata share, backup means the floor plan or square footage certification that documents the tenant and building square footage used in the calculation.
For the estimated payments, backup means the monthly CAM invoices or a payment history schedule.
Not every landlord provides backup automatically. For smaller balances, many tenants skip requesting it and pay the statement as presented. For a balance due of $3,400 or more, requesting backup before paying is worth the extra step. The right to request it is almost always in the lease.
The request does not have to be adversarial. A short note to the property manager asking for the expense detail and square footage basis behind the reconciliation is a routine request. Most will provide it.
Common Sections That Create Confusion
Management fee. This line appears in the expense pool as a percentage of other operating costs, often 3 to 8 percent of gross building expenses. The lease will typically state the allowable management fee percentage. If the reconciliation shows a management fee of $89,000 on a $1,100,000 expense base, that is 8.1 percent. Check that against the lease cap. A $1,200 per month overcharge on the management fee adds up to $14,400 per year.
Real estate taxes. Property taxes are often the largest single line in the CAM pool. Some leases separate taxes from CAM and bill them as a distinct line item on the monthly invoice. Others blend them into the CAM total. Either way, the reconciliation should show taxes as a line, and the amount should roughly match publicly available tax records for the property.
Insurance. Building insurance is typically included in the CAM pool. The reconciliation will show an annual premium. If the premium jumped significantly year over year, the tenant can request a copy of the insurance certificate to confirm the increase.
Capital expenditures. Most commercial leases exclude capital expenditures from CAM. A roof replacement, HVAC system upgrade, or parking lot resurfacing is capital in nature and should not appear in the operating expense pool. When a line item looks unusually large or is described with language like "replacement" or "system upgrade," it is worth asking whether the item should have been excluded.
Reading the Statement When the Format Is Non-Standard
Some landlords use formatted PDF templates with clear labels. Others send spreadsheets, attached Excel files, or narrative letters with embedded numbers. The content is the same regardless of format.
Start by identifying the four components: total pool, pro-rata share percentage, estimated payments, and resulting balance. Once those four numbers are located, the calculation is straightforward: (pool x share) minus estimates equals balance.
If a line labeled "admin fee," "asset management fee," or "oversight fee" appears separately from the management fee line, check whether it is being counted twice. Duplicate charges under different labels are one of the more common sources of overcharges on reconciliation statements.
If the statement references a lease abstract or a specific exhibit, retrieve that exhibit before finalizing the coding decision. Reconciliations occasionally use different square footage or pro-rata share figures than the current lease amendment, especially for long-term tenants who have expanded or contracted their space.
Before Coding the Payment
The bookkeeper's job at this stage is to confirm that the four core numbers are internally consistent and that the balance due matches the lease terms before the payment hits the books.
The accounting question (which account, which period) comes after the accuracy question (is the number right). Both matter. Coding the payment to the correct GL account with the wrong dollar amount is still an error.
For any balance due above a threshold the firm sets with the client, say $500 or $1,000, a brief review of the reconciliation against the lease abstract is a reasonable standard practice. That review takes fifteen minutes for a straightforward statement and protects the client from paying overcharges that would otherwise disappear into a closed period with no recourse.