Tenant Improvement Allowances in NNN Leases: What Landlords Need to Track
Tenant improvement allowances have become a standard part of NNN lease negotiations — both for new leases and renewals. The landlord contributes a defined dollar amount toward the tenant's buildout; the tenant builds out the space and operates under the lease.
That exchange sounds simple. It isn't. The TI allowance creates documentation obligations, potential lease complications, and accounting considerations that follow you for the entire lease term. Landlords who don't track TI properly end up in disputes at renewal, at default, and sometimes in the middle of a refinancing.
This guide covers the structure of TI allowances in NNN leases, how they interact with lease economics and CAM, and what you need to track from day one.
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What a TI Allowance Actually Is
A tenant improvement allowance (TI or TIA) is a landlord contribution toward the cost of building out or improving a leased space. It's not a gift — it's a negotiated concession that gets priced into the deal economics.
Where TI shows up in NNN leases:
- New leases: almost always when a space is being delivered in shell condition
- Renewal leases: increasingly common as tenants demand concessions in exchange for staying
- Expansion amendments: when a tenant takes additional space and needs to improve it
The TI amount is typically expressed as a dollar amount per square foot — "$50/SF TI" on a 5,000 SF space means the landlord is contributing up to $250,000. The tenant gets the allowance reimbursed against invoices and lien waivers, or in some structures the landlord manages the buildout directly.
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How TI Is Structured in the Lease
Reimbursement vs. landlord-managed buildout:
Most NNN leases use a reimbursement model: the tenant hires contractors, builds out the space, and submits invoices with lien waivers. The landlord reimburses up to the TI cap. The landlord isn't managing the project.
Less common: the landlord takes primary responsibility for the buildout and delivers a finished space. This typically happens with landlord-delivered warm shells or high-specification tenant improvements where the landlord wants control over the improvements (which then become part of the building).
Disbursement mechanics: The reimbursement process should be specified in the lease:
- What documentation is required (invoices, lien waivers, contractor certifications)?
- Is there a disbursement schedule (milestone-based, or periodic draws)?
- What's the deadline for the tenant to submit for reimbursement?
- Is there a cap on the number of draw requests?
TI overage: If the buildout costs exceed the TI amount, the tenant is responsible for the difference. The lease should make this explicit. If the buildout comes in under, the balance typically either reverts to the landlord or is credited against future rent — negotiate which before signing.
Unused TI: Many leases include a deadline for the tenant to use the TI allowance (e.g., the allowance expires 12 months after lease commencement if not drawn). After the deadline, the landlord retains the unused amount. Make sure this provision is clear and that you're tracking the draw deadline.
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TI and Lease Economics: The Amortization Question
From a deal economics standpoint, the TI is part of the total landlord investment. If you're paying $250,000 in TI on a 10-year lease, you're effectively reducing your net return by $25,000/year (simplified — the actual economic analysis uses NPV, not straight-line amortization, but the principle holds).
TI amortization clauses: Many leases include an explicit TI amortization provision: if the tenant defaults or terminates early, they owe back a portion of the TI based on the remaining lease term. The formula is typically:
> Unamortized TI = Total TI x (Remaining Months / Total Lease Term)
This recapture provision is a critical protection for landlords who fund significant TI on shorter-term leases. Without it, a tenant who walks after 2 years of a 10-year lease has received a $250,000 contribution and given you nothing in return.
What to check in your lease:
- Is there an explicit TI recapture clause?
- Does recapture apply on default, voluntary termination, or both?
- Is the recapture added to the tenant's outstanding balance (treated as additional rent)?
- Does the guarantee cover the TI recapture obligation?
For related considerations on early termination, see our post on NNN lease early termination rights.
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TI and CAM: The Interaction You Need to Know
Capital improvements vs. operating expenses: TI allowances fund tenant improvements — work that becomes part of the building. Whether those improvements are capitalized as landlord assets or treated as leasing costs affects how they're depreciated, but it also affects whether any costs associated with those improvements can flow through CAM.
The practical issue: if the tenant's TI project includes improvements to shared areas (common area remodeling, HVAC upgrades that benefit the whole building), the allocation between tenant improvement costs and building improvement costs can get complicated.
What landlords miss: If the TI-funded improvement turns out to require ongoing maintenance (new HVAC unit, roof component, specialty flooring), that ongoing maintenance cost may or may not be CAM-billable depending on your lease's capital expenditure exclusion. Track what was installed through TI so you know what category future maintenance costs fall into.
TI as a CAM exclusion: Many leases explicitly exclude TI allowances from CAM — meaning you can't bill the TI contribution itself as an operating expense. This is standard and expected, but make sure you're not inadvertently including TI disbursements in your CAM actuals when building your reconciliation.
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What to Track From Day One
The documentation burden for TI starts at lease execution and runs through the lease term. Here's what the file should contain:
At lease signing:
- TI amount and dollar-per-square-foot rate
- Disbursement deadline and any sunset provisions
- TI recapture formula and trigger events
- Approval requirements for contractor selection or plan review
During construction and disbursement:
- Each disbursement request with supporting invoices
- Lien waivers from contractors and subcontractors (conditional and unconditional, as required)
- Architect or inspector sign-offs (if required by your lease)
- Running total of TI disbursed vs. TI cap
Post-completion:
- Total TI disbursed (this is your recapture base)
- Amortization schedule (or formula) for recapture calculations
- As-built documentation of what was built (for future maintenance allocation questions)
- Notice of lease commencement (establishes when the TI draw period started)
Ongoing:
- Recapture balance (decreases with each passing month of the lease term)
- Any TI balance remaining if tenant didn't use the full allowance and it was not yet expired
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Renewal TI: What Changes
Renewal TI is structurally similar but has a few differences worth noting:
Shorter buildout period: At renewal, the tenant is usually upgrading an occupied space rather than building out from shell. Phased construction, operational constraints, and coordination with ongoing business operations are common issues.
New recapture window: The recapture period resets with the renewal — a tenant who takes a 5-year renewal with a $100,000 TI has a new amortization schedule starting from the renewal commencement.
Interaction with original lease terms: If the original lease has outstanding TI recapture balance (unusual but possible if the tenant negotiated a shorter original term with a large TI), clarify how the renewal TI interacts with any outstanding recapture from the original lease period.
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Common Disputes and How to Avoid Them
"We never drew against the TI and you owe us the balance." This happens when the disbursement deadline language is ambiguous. Be explicit: TI not requested by [date] is forfeited. Get that language in the lease.
"The TI improvements you funded aren't being maintained." If a landlord-funded improvement (HVAC, roof component, etc.) is now failing and the lease is ambiguous about who's responsible for maintenance, you'll have a fight. Know what was installed through TI and what the lease says about maintenance responsibilities.
"We don't owe recapture because the termination was for landlord default." Most recapture provisions only trigger on tenant default or voluntary termination, not landlord default. If a tenant is claiming your default as the reason they're leaving, your recapture rights may be compromised. Document everything.
"Your lien waiver requirement is delaying our reimbursements." The lien waiver process is non-negotiable protection against mechanic's liens — but the process needs to be realistic. Work with your attorney to set a disbursement process that's protective but not so burdensome that it creates a dispute of its own.
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The Bottom Line
TI allowances are a normal part of NNN deals. What makes them complicated is that the documentation and tracking requirements extend across the entire lease term, not just the buildout period.
Build a TI tracking file at lease execution, maintain it through every disbursement, and keep the recapture schedule current. The landlords who get into trouble on TI are the ones who treat it as a one-time closing item rather than an ongoing lease document.
For a broader look at NNN lease management, see our guides on CAM reconciliation dispute prevention and NNN lease early termination rights.