Capital expenses in commercial leases can create major financial surprises for tenants. At National Lease Advisors (NLA), our lease administration and lease audit team regularly identifies situations where landlords rely on loose lease language to pass through excessive capital costs as operating expenses.
If you want to control occupancy costs, protect your P&L, and avoid disputes, you must address capital expenses during lease negotiations and not after you receive the reconciliation.
This guide explains:
- How capital expenses get passed through
- The differences between triple net and base year leases
- Three levels of negotiation protection
- Key clauses every tenant should review
What Are Capital Expenses in a Commercial Lease?
Capital expenses are costs incurred to replace, improve, or upgrade building systems or assets. Unlike routine maintenance, capital improvements typically extend the useful life of a property or increase its value.
Examples include:
- Roof replacements
- HVAC system replacements
- Structural repairs
- Elevator modernizations
- Major building system upgrades
Under GAAP, these are not ordinary operating expenses. However, many landlords draft leases that allow some or all of these costs to flow through to tenants.
That exposure can be significant.
How Capital Expenses Get Passed Through to Tenants
Most commercial leases require tenants to pay a share of operating expenses. This typically occurs under one of two structures:
1. Triple Net (NNN) Lease
In a triple net lease, the tenant pays its proportionate share of:
- Property taxes
- Insurance
- Operating expenses
If capital expenses are included in the definition of operating expenses, the tenant may pay a share of amortized capital from day one.
2. Base Year Lease
In a base year lease, the tenant pays increases in operating expenses over a designated base year.
If capital costs are excluded from the base year but included in later years, tenants face artificial expense spikes in year two and beyond. We see this frequently in audits.
Why Capital Costs Create Significant Risk
Capital expenses represent one of the largest economic exposures in a lease because:
- They can total hundreds of thousands or millions of dollars
- They are often outside the tenant’s control
- They are not routine operating costs
- They can be amortized with interest
Tenants already pay rent based on the assumption that the building is in sound condition. Asking tenants to fund major asset replacements on top of market rent creates double recovery for landlords.
A simple comparison: When you rent a house, you may maintain it, but you do not replace the roof or HVAC system when it reaches the end of its useful life. The same principle should apply in commercial leasing.
Three Levels of Protection Against Capital Expenses
When negotiating a lease, tenants must prioritize economic protections. Below are three common approaches, from strongest to most flexible.
1. Maximum Protection: Total Exclusion of Capital
The strongest position excludes capital expenses entirely from operating expenses.
Many landlords concede this point, only if tenants ask.
Sample concept language:
Operating expenses shall not include capital expenditures as defined by GAAP.
This approach ensures tenants pay for operations and not asset replacements.
2. Typical Compromise: Limited Inclusion of Capital
Most negotiations land here. Landlords usually request two exceptions:
A. New Governmental Requirements
Landlords may request the right to amortize capital improvements required by laws enacted after the lease commencement date (e.g., ADA upgrades, fire code changes).
The phrase “after the commencement date” is critical. If the law existed before lease execution, the landlord knew about it and should have priced it into rent.
B. Energy-Saving Improvements
Landlords may seek to pass through capital improvements that reduce utility costs.
Tenants should only allow amortization to the extent savings are achieved. Without that limitation, landlords can justify large investments with minimal savings.
Key protections to include:
- Amortization over useful life
- Savings must offset the amortized cost
- Clear documentation of savings
Sample concept language:
Operating expenses shall exclude capital expenditures except for (i) improvements required by governmental regulations enacted after the commencement date or (ii) energy-saving improvements, but only to the extent such savings are realized.
3. Limited Protection: Replacement of Building Equipment Only
If a landlord refuses the above compromise, tenants may allow amortization for replacement of building equipment, but not additions, expansions, or cosmetic upgrades.
Permitted:
- Replacement of existing HVAC units
- Replacement of boilers or chillers
Not permitted:
- Lobby renovations
- Amenity upgrades
- Cosmetic remodels
- Structural expansions
Landlords should fund improvements designed to attract higher market rents. Tenants should not pay twice, first through rent and then again through operating expenses.
Critical Lease Clauses to Review
Even when capital is permitted, the details matter.
1. Amortization Period
The amortization term should reflect the asset’s useful life. Depending on the system, this could range from 5–20 years.
A common compromise: 12-year amortization.
Short amortization periods dramatically increase tenant costs.
2. Interest Rate on Amortization
Some leases allow landlords to charge 8–10% interest on capital amortization. That effectively turns operating expenses into a profit center.
If interest is allowed, it should reflect:
- The landlord’s actual borrowing rate
- A reasonable benchmark (often prime plus a modest spread)
Tenants should not fund a landlord’s return on equity through operating expenses.
3. Timing of Capital Investments
This is where many disputes arise.
Exclude Pre-Commencement Capital
Tenants should exclude capital incurred before the lease commencement date.
We have seen landlords attempt to amortize capital completed years before a tenant moved in.
Include Permitted Capital in the Base Year
For base year leases:
- Permitted capital must be included in the base year
- Landlords should not exclude base year capital and then include it in year two
This practice artificially inflates increases and leads to reconciliation disputes.
At NLA, we routinely uncover base year distortions tied to capital exclusions.
Triple Net vs. Base Year: Additional Considerations
For Triple Net Tenants
You pay your share of capital from day one. Model this exposure in your financial underwriting.
For Base Year Tenants
Confirm:
- Capital treatment is consistent
- Base year includes permitted capital
- Amortization begins properly
Clarity at lease execution prevents expensive disputes later.
Final Thoughts: Control Capital Risk Before You Sign
Capital expenses represent one of the most misunderstood and most negotiable areas of commercial leases.
The best time to address capital exposure is:
- During lease negotiations
- Before signing
- Before the first operating expense reconciliation
After execution, leverage disappears.
How National Lease Advisors Helps
At National Lease Advisors, our lease administration and lease audit professionals:
- Review operating expense definitions
- Identify improper capital pass-throughs
- Analyze base year calculations
- Recover overcharges
- Protect tenants in negotiations
If you would like a second set of eyes on your lease language or operating expense reconciliation, contact National Lease Advisors or directly at ed@nationalleaseadvisors.com.
Protecting tenants from surprise capital expenses starts with strong lease language and disciplined review.