The reconciliation statement arrives as a PDF. It might be two pages or twelve. Either way, the task is the same. Figure out what it says. Decide whether the number makes sense. Find where it goes in the books. For more context, see positioning CAM advisory services. CAM is Common Area Maintenance.
This article walks through a CAM reconciliation statement section by section. It explains each part in plain words. It shows what to check before you code 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
Landlords use different formats. But almost every CAM reconciliation holds the same four pieces of information.
1. The total expense pool
This is the sum of all qualifying operating costs for the building for the year. A well-formatted reconciliation shows a table of categories with annual totals. For example: janitorial ($48,000), landscaping ($22,000), property insurance ($71,000), real estate taxes ($195,000), property management fee ($89,000), and common area utilities ($36,000).
The sum of those categories is the total pool. On a 120,000 square foot office building, a pool of $890,000 is not unusual. The pool is what the landlord spent. The next section sets how much of it this tenant owes.
If the statement shows only a total with no category breakdown, that is a flag. The detail is what lets you check whether excluded categories slipped into the pool. Request the backup detail before coding any balance above a few hundred dollars.
2. The tenant pro rata share
The pro rata share is the percent used to allocate the pool to one tenant. It comes from a formula in the lease. The most common version is:
Tenant rentable square footage divided by total leasable building square footage
A dental practice in 2,400 square feet of 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 share of operating expenses for the year.
The statement usually states the pro rata share as a percent and shows the math. Confirm it against the lease abstract before you accept it. The denominator matters. Some leases use total leasable square footage. Others use occupied square footage, which leaves out vacant space. Some use total building square footage, which adds non-rentable areas like stairwells and mechanical rooms. A different denominator gives a different percent.
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 $17,800 share.
Check this number against the payment history. Errors here are less common than pool errors, but they happen. A December payment the landlord has not yet applied makes the balance due look too large. Confirm the total against bank records or the accounts payable ledger.
4. The balance due or credit
The balance is the allocated share minus the estimated payments. Above, $17,800 minus $14,400 is a balance due of $3,400. The statement says when it is due, usually 30 days from the statement date.
If the share is less than the payments, the result is a credit. A credit of $600 means the tenant overpaid for the year. The lease says how the credit is handled. It may be refunded in cash, applied to future estimates, or applied to next month's rent.
What "backup" means and when to request it
The word backup comes up a lot with CAM reconciliations. It means the supporting documents behind the numbers on the statement.
For the expense pool, backup is the itemized list of operating expenses the landlord included. It might be a general ledger extract, a schedule of invoices, or a categorized expense report. Without it, you cannot verify the pool total.
For the pro rata share, backup is the floor plan or square footage certification. It documents the tenant and building square footage used in the math.
For the estimated payments, backup is the monthly CAM invoices or a payment history schedule.
Not every landlord sends backup on its own. For small balances, many tenants skip it and pay the statement. For a balance due of $3,400 or more, request backup before paying. The right to request it is almost always in the lease.
The request does not have to feel like a fight. A short note to the property manager asking for the expense detail and square footage basis is routine. Most will send it.
Sections that create confusion
Management fee. This line sits in the pool as a percent of other operating costs, often 3 to 8 percent of gross building expenses. The lease usually states the allowed percent. A management fee of $89,000 on a $1,100,000 expense base 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 pool. Some leases bill taxes apart from CAM as a separate line. Others fold them into the CAM total. Either way, the reconciliation should show taxes as a line. The amount should roughly match public tax records for the property.
Insurance. Building insurance is usually in the pool. The reconciliation shows an annual premium. If the premium jumped a lot year over year, the tenant can request the insurance certificate to confirm the increase.
Capital expenditures. Most commercial leases keep capital expenditures out of CAM. A roof replacement, an HVAC upgrade, or a parking lot resurfacing is capital in nature. It should not appear in the operating pool. If a line looks unusually large or says "replacement" or "system upgrade," ask whether it should have been excluded.
Reading the statement when the format is non-standard
Some landlords use clean PDF templates with clear labels. Others send spreadsheets, Excel files, or letters with numbers buried in the text. The content is the same.
Start by finding the four parts. Total pool, pro rata share percent, estimated payments, and the balance. Once you have those four numbers, the math is simple. Pool times share, minus estimates, equals the balance.
If a line says "admin fee," "asset management fee," or "oversight fee" apart from the management fee line, check whether it is counted twice. Duplicate charges under different labels are a common source of overcharges.
If the statement points to a lease abstract or a specific exhibit, pull that exhibit before you finalize the coding. Reconciliations sometimes use different square footage or pro rata figures than the current lease amendment. This happens most with long-term tenants who expanded or shrank their space.
Before coding the payment
At this stage, the bookkeeper confirms two things. The four core numbers agree with each other. The balance due matches the lease terms. Do this before the payment hits the books.
The accuracy question comes first. Is the number right? The accounting question comes second. Which account and which period? Both matter. Coding the right GL account with the wrong amount is still an error.
Set a threshold with the client, say $500 or $1,500. For any balance above it, review the reconciliation against the lease abstract. That review takes fifteen minutes for a straightforward statement. It protects the client from paying overcharges that would otherwise vanish into a closed period with no recourse.