What Is a CAM True-Up and Why It Surprises Franchise Operators
A CAM true-up is the annual adjustment between what you paid in monthly CAM estimates and what the landlord's actual CAM costs were for the year. If actual costs were higher than your estimates, you owe the difference. That difference is the true-up payment.
For franchise operators, especially in the first few years of a lease, the true-up arrives as an unexpected bill with a number that is difficult to verify and a payment deadline that does not allow much time to review it.
How the True-Up Cycle Works
During the lease year: You pay monthly estimates. These are calculated by the landlord at the start of the year, usually based on prior year actuals plus a projected increase. The estimates are bundled into your monthly invoice as a CAM or NNN line. You pay them without a breakdown of what the estimate is actually covering.
Within 90 to 180 days after year-end: The landlord prepares the annual CAM reconciliation. This is a statement of actual costs for the year: line items in the CAM pool, the total pool amount, and your proportionate share. Your total actual CAM obligation is calculated. The amount you paid in estimates is subtracted. The result is the true-up balance — positive means you owe more, negative means you receive a credit.
The payment deadline: Your lease specifies when the balance is due, typically 30 to 60 days after you receive the reconciliation statement. This creates the time pressure that catches most franchise operators off guard.
Why It Surprises Franchise Operators
The gap between payment and accounting is invisible. Monthly NNN estimates are a single line on your invoice. There is no running tally of what the estimates were versus what actual costs look like. When the reconciliation arrives, the delta between estimates and actuals is often the first signal that something changed at the property level.
No warning system exists. Landlords do not typically notify tenants when CAM costs are running ahead of estimates during the year. You find out in the reconciliation.
Year-one true-ups are disproportionate. In a new location, the landlord may have set initial estimates conservatively, or the property may have had a major maintenance event in your first year. Either can produce a large first-year true-up that does not represent typical ongoing cost levels.
Major property events create spikes. A parking lot resurfacing, a tax reassessment, a major storm event, or a large HVAC repair can cause the true-up to be substantially larger than prior years. These events are legitimate in some cases and billing errors in others.
The Reconciliation Statement: What It Shows
A CAM reconciliation statement typically includes:
- The lease year covered
- A line-item breakdown of CAM expenses (maintenance, management fee, utilities, landscaping, etc.)
- Total CAM pool for the year
- Your pro-rata share percentage
- Your proportionate share of the total
- Total CAM estimates paid during the year
- True-up balance (owed by tenant or credited)
- Payment deadline
What it does not show is whether any of these numbers are consistent with your lease. The reconciliation is the landlord's calculation. Verifying it against the lease requires reading the reconciliation in conjunction with your lease's CAM definition, management fee cap, pro-rata share provision, and exclusions list.
What a Large True-Up Usually Means
A true-up significantly larger than prior years typically indicates one or more of the following:
Actual costs increased legitimately. Property taxes were reassessed. Insurance premiums went up. A major maintenance cycle occurred. These are real cost increases that your NNN lease obligates you to pay.
CAM estimates were set too low. The landlord underestimated costs at the start of the year. You are now paying the gap. This is still a legitimate charge if the underlying costs are accurate.
An error in the reconciliation. A capital item was included in CAM. The management fee was applied to a broader base than the lease allows. The pro-rata denominator is wrong. These produce true-up amounts that exceed what the lease obligates you to pay.
You cannot know which of these explanations applies without reviewing the reconciliation line by line against your lease provisions.
What to Do When You Receive the True-Up
Step 1: Note the delivery date. Your audit window starts when you receive the reconciliation. For most leases, it is one to three years from this date. Write it down.
Step 2: Review the line items. Look at each expense category. Flag anything that looks unfamiliar: large single-year expenses, items labeled with terms like "resurfacing," "replacement," or "capital project," and management fees that seem disproportionate to the CAM total.
Step 3: Verify the management fee. Find the cap in your lease (the percentage and the base). Calculate the maximum allowable fee. Compare it to what was billed.
Step 4: Verify the pro-rata share. Find your RSF and the denominator definition in the lease. Calculate your expected percentage. Compare it to what the reconciliation used.
Step 5: Request backup documentation if anything is unclear. A written request to the property manager asking for the general ledger, management fee calculation, and denominator support is a routine exercise of your lease rights. It is not a dispute. Make the request before the payment deadline if possible, or note that a backup request is pending if the deadline is tight.
Step 6: Pay the undisputed amount. If you have identified specific questions, pay the portion you cannot dispute while the questions are pending. Withholding the entire true-up over a partial dispute can create a default risk.
The Audit Window
The most important and least understood provision related to CAM true-ups is the audit rights clause. It gives you the right to request backup documentation and dispute errors within a defined window after the reconciliation is delivered. Once that window closes, you lose the right to recover overpayments.
Most leases specify 12 to 36 months. The clock starts on the date the reconciliation is delivered to you — not the date the lease year ended, and not the date you paid the balance.
If you have received reconciliations in prior years and paid them without reviewing, those audit windows may still be open. It is worth checking before they expire.
The should-you-audit tool helps assess whether a formal review makes sense before the audit window on your current reconciliation closes.