CAM lease clauses, explained in tenant language
CAM clauses determine which operating costs can reach your reconciliation statement, how they are allocated, and what you can question. Use this CAM_Audit hub as a plain- language starting point before comparing the full lease with the supporting records.
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Audience
Commercial tenants reviewing CAM
The clauses to put beside the statement
Start with the definition, then trace the math
These examples are hypothetical. Your lease, amendments, definitions, and cited records control the result.
Base Year
A base year is a comparison point. Instead of charging a tenant for every operating expense in every year, the lease may use a stated year as the starting level and pass through later increases.
Hypothetical tenant example
Hypothetical example: eligible 2024 expenses are $1,000,000 and eligible 2026 expenses are $1,080,000. If the lease uses 2024 as the base year, the tenant may be responsible for its lease-defined share of the $80,000 increase—not automatically the full 2026 pool.
Tenant check: Find the named base year, the expenses included in it, and whether the lease changes the comparison for occupancy, taxes, or other categories.
Gross-up
A gross-up provision can adjust certain variable expenses from actual occupancy to a stated occupancy level before the tenant share is calculated. It applies only if the lease permits it and defines the method.
Hypothetical tenant example
Hypothetical example: a building is 70% occupied, and the lease permits eligible variable expenses to be grossed up to 95% occupancy. The tenant should be able to see which expenses were adjusted, the occupancy inputs, and the formula used—not just a larger total.
Tenant check: Look for the trigger, target occupancy, eligible expense scope, and calculation method. Do not assume every expense or every lease permits a gross-up.
Expense exclusions
An exclusion is a cost the lease leaves out of the CAM pool or otherwise keeps from the tenant’s pass-through. Definitions and exceptions control; a familiar label is not enough by itself.
Hypothetical tenant example
Hypothetical example: a reconciliation includes “capital work.” If the lease excludes capital improvements except for a stated exception, the tenant can compare the line item, the exact exclusion language, and the supporting invoices before accepting the charge.
Tenant check: Compare the lease-defined exclusions and qualifications with each category, line item, and supporting schedule in the reconciliation.
Expense stops
An expense stop is a ceiling or starting expense level that the landlord absorbs before a tenant begins paying certain operating-cost increases. The lease may set it by dollar amount, year, category, or another formula.
Hypothetical tenant example
Hypothetical example: the lease sets a $6.00-per-square-foot expense stop for a tenant’s first year, and eligible expenses are later $6.75 per square foot. The tenant may be comparing the $0.75 difference, subject to the lease’s scope and allocation rules.
Tenant check: Confirm what the stop covers, the stated amount or year, whether it is per square foot or another basis, and how later increases are calculated.
Controllable expense caps
A controllable-expense cap limits the year-over-year increase in the categories the lease defines as controllable. Taxes, insurance, utilities, or other items may be treated differently if the lease says so.
Hypothetical tenant example
Hypothetical example: a lease has a 5% annual cap on a $200,000 controllable pool. A 9% increase would prompt a comparison against the lease’s cap formula; the tenant should also check which categories were included and whether the cap compounds or uses another basis.
Tenant check: Trace the cap scope, comparison period, formula, exclusions, and all inputs back to the lease and the reconciliation support.
Management fees
A management fee is an amount charged for property-management or administrative work. Whether it is allowed, capped, included in a pool, or calculated on a particular cost base depends on the lease.
Hypothetical tenant example
Hypothetical example: a lease allows a 3% management fee on a defined operating-expense base of $500,000. The resulting $15,000 should be checked against the permitted base, the fee rate, any cap, and whether another administrative charge overlaps it.
Tenant check: Compare the fee’s rate, base, scope, cap, and backup with the exact management-fee clause and defined terms.
Reconciliation and audit rights
A reconciliation compares estimated or billed CAM with the landlord’s reported actual expenses. Audit-rights language may then describe how a tenant can request records, object, or review the calculation.
Hypothetical tenant example
Hypothetical example: a tenant receives a year-end statement with a balance due and a lease that gives 30 days to raise a written objection. The tenant can calendar that stated period, identify the disputed lines, and request the records the lease makes available before assuming the statement is final.
Tenant check: Locate the reconciliation period, statement detail, objection deadline, delivery method, records-access procedure, and any audit costs or limits.
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Go deeper on the clauses you are checking
The related explainers provide document-review checklists for the expense pools, exclusions, caps, gross-up, and audit-rights topics above.
Expense pools + gross-up
Compare pool definitions, tenant allocation, occupancy inputs, and the gross-up method.
Read the expense-pool and gross-up explainerExclusions + caps
Trace excluded categories and controllable-expense cap inputs through the statement and backup.
Read the exclusions and controllable-expense-cap explainerAudit rights
Find the lease’s notice timing, records-access process, and review conditions.
Read the audit-rights and deadline explainer