An estimate is not the same as a reconciliation.

What you will learn.

How to follow a reconciliation from the lease’s permitted cost categories to the tenant statement—and how to separate a year-end adjustment from an unpaid estimated charge.

Start with what your lease allows.

A CAM or operating-expense reconciliation compares the applicable period’s lease-calculated obligation with the estimates or credits recognized in the calculation. The statement may show an additional amount due or an adjustment in the other direction. Not every lease uses an annual true-up; read your structure first.

The calculation needs more than a list of property expenses. Identify the eligible expense pool, exclusions, allocation share, applicable period, and any caps, stops, or permitted adjustments. Then confirm how prior estimated billings, actual payments, and credits are reflected. Do not mix a reconciliation balance with unpaid monthly estimates without accounting for both.

A simple worked example.

Assume a teaching lease makes a tenant responsible for 5% of a $100,000 eligible expense pool for the full year, with no other adjustments. The calculated share is $5,000. Assume all estimated charges totaling $4,800 were billed and paid and there are no other credits or balances. The reconciliation difference is $200 due.

If the final share were $4,600 under the same paid-estimate assumptions, the difference would be a $200 overpayment adjustment. Whether it is credited, refunded, or handled another way depends on the agreement and applicable requirements. The examples do not establish an actual tenant charge.

Read the statement in layers.

Confirm the tenant, property, and year. Identify the eligible cost categories. Trace the allocation and adjustments. Compare the recognized estimates or credits to the ledger. Then identify any separate unpaid balance. Ask for the missing explanation before substituting a calculation based on a different assumption.

What to collect.

Keep the statement, the relevant expense provisions, amendments, estimated-charge history, payment records, and any explanation already provided. If a statement spans only part of a year, identify the lease’s period and allocation method rather than applying a guessed month fraction.

Questions that help AUM investigate.

“Which categories make up this pool?” “Where is my allocation percentage defined?” “Does the estimate figure reflect billed charges or payments?” “Is this amount the reconciliation alone or does it include another balance?” Identify the disputed line and your supporting record.

Do not assume a dispute changes the deadline.

Review the agreement’s billing, objection, document-review, and payment provisions. Do not assume an audit right, a withholding right, or a particular objection period exists. If a deadline or disputed obligation is material, obtain timely advice rather than relying on a general lesson.

Practice reflection.

In the $5,000 example, only $4,000 of the $4,800 estimates was paid. Can you say the tenant owes only $200 overall? No. The unpaid $800 must also be accounted for without double-counting. The statement’s method determines how the two components are displayed.

Bring the lease back to the conversation.

Before asking AUM to act, identify the relevant section, any amendment, the dates involved, and the documents supporting your question. If the issue is a legal interpretation or dispute, seek advice from your own attorney. Routine staff conversations do not change your lease; any change must meet the agreement’s requirements and applicable law.

Background reading.

CAM reconciliation overview by Precision Accounting & Consulting. Background on the true-up concept; the teaching figures and worksheet here are original. The actual lease determines rights and calculations.