What lease clauses have the biggest impact on CAM charges?

Five clauses drive most CAM disputes: the expense definition (what costs are recoverable), the pro-rata share formula (how your percentage is calculated), the gross-up provision (how costs are adjusted for occupancy), the base year or expense stop (your billing baseline), and the CAM cap (maximum annual increase).

How do I read a CAM cap clause?

A CAM cap clause limits how much your controllable CAM expenses can increase year over year. Look for language like "controllable expenses shall not increase more than X% per year." The cap typically applies only to controllable costs (management fees, maintenance labor) not uncontrollable ones (taxes, insurance). Compounding caps accumulate unused increases; non-compounding caps reset each year.

What is the difference between a gross lease and a net lease for CAM purposes?

In a gross lease, the landlord bundles operating costs into a single rent figure and bears the risk of cost increases. In a net lease (NNN), costs are passed through to tenants separately. Most CAM disputes arise in NNN and modified gross leases where the pass-through mechanism is explicitly defined and auditable.

What does "gross-up" mean in a commercial lease?

A gross-up clause allows the landlord to adjust variable operating costs to a hypothetical 100% occupancy level when calculating each tenant's pro-rata share. This protects landlords in low-occupancy buildings from underrecovering costs, but if applied incorrectly it can result in tenants paying more than their share.

Tenant Improvement Allowance: What It Covers and What It Doesn't

Tenant improvement allowance is one of the most negotiated items in a commercial lease, and one of the least understood once the lease is signed. Most tenants know what TI allowance is at lease inception: money the landlord contributes to build out the space. Fewer tenants know exactly how landlords recoup it, or when recoupment through channels other than base rent crosses into improper CAM charging.

The gap between what TI allowance is supposed to cover and what ends up being charged back through lease economics is worth understanding before you sign, and worth verifying after you receive your first CAM reconciliation.

What TI Allowance Actually Covers

Tenant improvement allowance is a landlord contribution to the cost of making a commercial space suitable for a specific tenant's use. The baseline scope includes construction and renovation work that becomes part of the building: partition walls, ceilings, flooring, HVAC modifications, electrical and plumbing work within the premises, and lighting.

Standard TI-eligible work includes:

Demolition of existing tenant improvements from prior occupants
New partition walls and interior framing
Flooring replacement or installation (carpet, tile, concrete finishing)
Suspended ceiling systems
HVAC distribution within the premises (not base building HVAC)
Electrical circuits, outlets, and panel capacity within the premises
Plumbing modifications within the premises
Interior doors and hardware
Painting and wall treatments
Fire suppression modifications within the premises

What TI allowance does not cover is just as important. Furniture, fixtures, and equipment (FF&E) are almost universally excluded from TI. Moving costs are excluded. Signage on the exterior of the building is typically excluded or handled under a separate allowance. Technology infrastructure (cabling, server rooms) is sometimes covered, sometimes not, depending on how the lease defines eligible work.

The line between what is covered and what is not is drawn by the TI allowance provision in the lease, not by any universal standard. Some landlords write TI allowance provisions that are highly specific; others leave broad discretion. Before construction begins, get written confirmation of what is in scope.

How TI Allowance Is Structured

There are two primary TI structures, and they have different implications for cash flow and verification.

Direct payment by landlord. The landlord pays contractors directly for eligible work. The tenant selects finishes within a specified scope, the landlord manages or approves the contractor, and the landlord pays invoices up to the allowance amount. The tenant pays any overage. This structure keeps TI dollars within the landlord's control and simplifies allowance tracking.

Reimbursement to tenant. The tenant contracts for the work, pays the invoices, and submits documentation to the landlord for reimbursement. The landlord reviews the documentation and issues payment, typically in one or more disbursements. This structure gives the tenant more control over the construction process but requires careful documentation and often involves disbursement holdbacks.

Holdback provisions are common in reimbursement structures. Landlords typically hold back 5 to 10 percent of the TI amount until construction is substantially complete and the landlord has confirmed the work meets lease standards. The holdback is released after a final walkthrough and lien waiver process. Tenants who do not understand the holdback mechanics sometimes experience cash flow problems if they are counting on TI reimbursement to fund late-stage construction.

Also watch for TI allowance disbursement deadlines. Some leases require the tenant to complete construction and submit reimbursement requests within a specified period, often 12 to 18 months from lease commencement. Allowance not requested within that window can be forfeited. If your build-out takes longer than expected or disputes with contractors delay completion, this deadline can become a significant issue.

How Landlords Recoup TI Through Rent

TI allowance is not a gift. The landlord is making an investment in a tenant, and that investment is recouped through the lease economics. Understanding the recoupment mechanism matters because it affects the total cost of the tenancy over the lease term.

Amortization into base rent. This is the most common and transparent approach. The TI allowance amount, plus a return on investment (typically at a rate tied to prime or LIBOR/SOFR plus a spread), is amortized over the lease term and added to the base rent. The tenant pays a higher rent in exchange for the TI contribution. The landlord earns its return on the TI investment through the rent differential.

This approach is straightforward when both parties understand it. The TI is a loan-like structure with the repayment built into rent. The tenant gets lower net cash outlay at lease commencement; the landlord gets a higher rent stream over the term.

Treated as a landlord loan. In some transactions, particularly where the tenant has negotiating leverage, TI is structured as a true loan with explicit terms: principal amount, interest rate, repayment schedule. The tenant repays the loan through additional rent payments on top of base rent. This structure is more transparent than the amortized-into-rent approach because the TI obligation is separately visible and tracked.

Offset against rent abatement. A common NNN lease package includes both TI allowance and a period of free rent at lease commencement. These two concessions may be linked. If the tenant defaults early in the lease term, the landlord may have the right to claw back unused TI or to demand repayment of TI on a pro-rated basis. Tenants should understand the default and repayment provisions for TI before accepting the concession.

For a full breakdown of what landlords can and cannot charge through CAM, see what is included in CAM charges.

The CAM Issue: Passing TI Through Operating Expenses

This is where TI allowance intersects with CAM auditing, and it is one of the more aggressive billing tactics that appears in commercial leases.

TI allowance, from the landlord's accounting perspective, is a capital expenditure. The landlord invests in tenant improvements, which become depreciable assets on the landlord's books. In a multi-tenant building, the landlord may have TI obligations to multiple tenants in different years. Each of those investments appears on the landlord's balance sheet as a capital asset.

Operating expense definitions in commercial leases typically exclude capital expenditures. But some landlords include language that allows amortization of capital improvements to be passed through as operating expenses, either explicitly or through a broad definition of operating expenses that does not exclude amortization.

When TI allowance is amortized through CAM rather than (or in addition to) base rent, the tenant is effectively being charged twice for the same landlord expenditure. The TI was already factored into the base rent economics when the deal was structured. Routing the same amortized amount through CAM is double recovery.

This is not a theoretical risk. After building CAMAudit and testing it against reconciliation samples from published audit cases, we found instances where line items labeled "landlord improvement allocation," "capital tenant improvement amortization," or "building improvement reserve" appeared in CAM reconciliations for leases that had separate TI provisions in the base rent structure.

How to Verify TI Is Not Being Passed Through CAM

The verification process requires reviewing two documents together: the lease and the CAM reconciliation.

In the lease, locate the operating expense definition and the capital expenditure exclusion. The exclusion should state that capital expenditures are excluded from operating expenses. If the exclusion contains exceptions for "amortized capital improvements" or "cost-saving improvements," note the specific language and conditions.

Then review the CAM reconciliation line by line. Look for any item that sounds like a capital expenditure or improvement:

"Capital improvement amortization"
"Landlord improvement allocation"
"Tenant allowance recovery"
"Building improvement reserve"
"Property enhancement amortization"

If any of these appear, request the underlying documentation. What is the specific improvement? When was it made? What is the total cost being amortized? Over what period? Does the amortization appear in the base rent structure as well?

If the same TI or capital expenditure is being recovered through both base rent and CAM, you have a documented overcharge. The remedy is a written dispute citing the specific lease provision, the reconciliation line item, and the double-recovery calculation.

Also request the landlord's depreciation schedule for tenant improvements in your building. This is legitimate documentation you are entitled to request under most audit rights provisions. The schedule will show which improvements are being depreciated, their costs, and their depreciable lives. If your TI allowance appears on that schedule and also appears as a CAM line item, the double-charge is documented.

What to Look for in the Reconciliation

Beyond the TI-specific items, several patterns in a reconciliation can signal that capital costs are being routed through operating expenses.

CAM expenses that increase sharply in the year after a major renovation or improvement to the building, particularly in "maintenance and repair" or "property improvements" categories, may reflect amortized capital work. The year-over-year increase is the signal; the backup documentation is the verification.

Line items with long amortization periods (5, 10, or 15 years) in an operating expenses reconciliation are unusual. Operating expenses are current-period costs. Amortization is a capital accounting treatment. If you see amortization language in an operating expense reconciliation, ask what the underlying asset is.

"Reserve" accounts in CAM reconciliations deserve scrutiny. Some landlords charge tenants for reserves against future capital expenditures (roof replacement reserves, parking lot repaving reserves). Whether these are allowable depends entirely on the lease language. Most tenant-favorable leases exclude reserves entirely. If your lease excludes reserves but you see a reserve line item, dispute it with the lease citation.

Frequently Asked Questions

What does tenant improvement allowance cover?

Tenant improvement allowance covers work that becomes permanently incorporated into the commercial space: partition walls, ceilings, flooring, HVAC modifications within the premises, electrical and plumbing work, interior doors, and painting. It does not cover furniture, fixtures, equipment, moving costs, or items that are removed when the tenant vacates. The specific scope is defined by the TI allowance provision in the lease, and what qualifies varies by landlord.

Can a landlord pass TI allowance through CAM charges?

No, not under a well-drafted lease. TI allowance is a capital expenditure, and most commercial leases exclude capital expenditures from operating expenses. When a landlord routes TI amortization through CAM in addition to recovering it through base rent, that constitutes a double charge. Line items like 'landlord improvement allocation,' 'capital tenant improvement amortization,' or 'building improvement reserve' in a CAM reconciliation are signals of this practice. If found, request the underlying documentation and dispute the charge with your lease's capital expenditure exclusion cited.

How is tenant improvement allowance repaid?

TI allowance is typically repaid through one of three mechanisms: amortization into base rent (the TI amount plus a return is spread over the lease term and added to base rent), a structured landlord loan with separate repayment terms, or offset against rent abatement concessions. The most common approach is amortization into base rent, where the tenant pays a higher rent in exchange for the landlord's TI contribution. In default situations, leases often require repayment of unused or pro-rated TI on a per-remaining-month basis.

What happens to unused TI allowance?

Unused TI allowance is typically forfeited if not requested within the lease-specified disbursement window, which is often 12 to 18 months from lease commencement. Some leases allow unused TI to be applied to rent abatement or converted to a rent credit; most do not. Check your lease for the TI expiration provision and the process for requesting disbursement. If construction took longer than expected, a formal request for extension of the disbursement period before the deadline expires is worth pursuing.

Tenant Improvement Allowance: What It Covers and What It Doesn't