Angel Campa, FounderTenant improvement allowance (TI) is one of the largest economic components in a commercial lease, and one of the most variable. Two tenants signing leases in the same building in the same month may negotiate TI allowances that differ by $50 per square foot or more, entirely based on the strength of their negotiating position and the quality of their representation.
Understanding how TI works, what drives the amount, and how to protect your right to draw the funds is as important as negotiating the base rent. For finance teams, TI allowance data is also a required input for ASC 842 and IFRS 16 lease accounting.
What Tenant Improvement Allowance Is
A tenant improvement allowance is a landlord-funded contribution toward the cost of improving a commercial space to suit the tenant's specific needs. Rather than delivering a finished space, most landlords deliver a base building in "warm shell" or "cold shell" condition -- structurally complete but without interior partitions, flooring, lighting, or build-out -- and provide TI funds to cover the cost of completing the space.
TI is not a gift. It is an economic component of the lease transaction that is underwritten by the landlord based on the net present value of the lease cash flows, the tenant's credit, the lease term, and the market conditions for comparable space. The landlord recovers the TI through the rent stream over the lease term. A tenant who negotiates more TI is, in effect, amortizing the improvement cost into the lease rather than paying it out of pocket -- but the landlord's expected return on the transaction still has to work.
Typical TI Allowance Ranges
TI allowances vary enormously by market, property type, asset class, and transaction size.
Office space carries the highest TI allowances because office buildout is expensive and highly customized. In major gateway markets (New York, San Francisco, Chicago, Boston), TI allowances for Class A office space commonly range from $80 to $150 per rentable square foot for new leases. In secondary markets, the range is typically $40 to $80 per RSF. Renewal TI is typically lower -- $20 to $40 per RSF -- because the space is already built out and the landlord's carrying costs are lower.
Retail space TI allowances depend heavily on the tenant's credit and the landlord's desire for the tenancy. National credit tenants negotiating anchor positions in high-traffic centers may receive $50 to $100 per RSF or more. Inline retail in a standard strip center typically receives $20 to $40 per RSF, often structured as a landlord work contribution rather than a cash allowance.
Industrial space buildout costs are lower and TI allowances reflect that. Office-finish components of industrial leases typically attract $10 to $30 per RSF for office area; the warehouse portion of the space generally receives minimal TI.
Medical and life sciences space carries some of the highest TI allowances due to specialized infrastructure requirements (plumbing, electrical, HVAC for lab use). TI allowances of $150 to $200 per RSF are not uncommon for heavily built-out lab or clinical space.
What Is a Reasonable Tenant Improvement Allowance?
"Reasonable" varies significantly by property type, market, and deal size. These ranges reflect market conditions in 2025�2026:
| Property Type | Market | Typical TI Range |
|---|---|---|
| Class A Office | Gateway (NYC, SF, Chicago) | $80�$150 per RSF |
| Class A Office | Secondary markets | $40�$80 per RSF |
| Class B/C Office | All markets | $20�$50 per RSF |
| Retail (national credit) | Strong centers | $50�$100 per RSF |
| Retail (inline) | Strip centers | $20�$40 per RSF |
| Industrial (office finish) | All markets | $10�$30 per RSF |
| Medical / Life Sciences | All markets | $100�$200 per RSF |
Renewal TI is typically 30�50% of initial TI because the space is already built out and the landlord's risk is lower. A tenant renewing a 5,000 SF Class A office lease that originally received $100/RSF should expect to negotiate $25�$50/RSF on renewal.
The best leverage for negotiating TI above these ranges: (1) strong tenant credit, (2) long lease term, (3) large square footage, and (4) a soft market with meaningful landlord vacancy exposure.
Tenant Improvement Allowance Calculator
Use this formula to calculate your TI allowance value and verify it covers your buildout:
Total TI funds available = TI allowance per RSF � Rentable square footage
TI gap (if any) = Estimated buildout cost - Total TI funds
Monthly amortization (if landlord funds gap) = TI gap � (lease interest rate / 12) / (1 - (1 + rate/12)^(-months))
Example calculation:
- Lease: 5,000 RSF, 7-year term, Class A office
- TI allowance negotiated: $80/RSF
- Total TI funds: 5,000 � $80 = $400,000
- Estimated buildout cost: $475,000
- TI gap: $475,000 - $400,000 = $75,000 (tenant funds out of pocket, or negotiates amortized funding at lease rate)
When evaluating competing proposals from multiple landlords, convert TI to a net present value and subtract from total occupancy cost to compare deals on an apples-to-apples basis. A $100/RSF TI offer with a 7% implied rate on a 5-year lease has a meaningful NPV advantage over a $60/RSF offer even if the base rents differ by only $2/RSF.
How TI Is Structured
TI allowances can be structured in several ways, and the structure matters as much as the amount.
Upfront landlord work. The landlord commissions and manages the buildout, delivering a complete space to the tenant. The tenant has less control over costs and timeline but less risk.
Tenant work with landlord reimbursement. The tenant manages and pays for the buildout, then submits invoices to the landlord for reimbursement up to the TI cap. The tenant controls the buildout but bears cash flow risk until reimbursements are received. Reimbursement is typically conditioned on receipt of lien waivers and landlord approval of contractors.
Amortized TI above the allowance. When a tenant needs more improvement funding than the market TI supports, some landlords offer to fund the excess as an amortized loan over the lease term, with the amortized amount added to base rent. This is economically similar to the tenant financing the improvement itself, but through the lease structure.
What TI Can Cover
What qualifies as a reimbursable improvement versus a non-qualifying cost is defined by the lease. Most TI allowances cover:
- Interior construction costs (framing, drywall, ceilings)
- Mechanical, electrical, and plumbing (MEP) systems
- Flooring and finishes
- Lighting
- HVAC distribution within the demised premises
- Architectural and engineering fees directly related to the permitted improvements
- Permit fees
Most TI allowances exclude:
- Furniture, fixtures, and equipment (FF&E)
- Telecommunications and data infrastructure (unless specifically included)
- Security systems
- Signage
- Moving costs
- Costs that are not permanently affixed to the premises
Some leases allow a defined percentage of the TI allowance (often 10% to 15%) to be applied toward FF&E or moving costs. If that flexibility is important to the tenant, it should be negotiated explicitly and documented in the lease.
Negotiating TI Allowance
TI negotiation has several dimensions beyond the dollar amount.
Lead with your buildout cost estimate. The strongest negotiating position starts with a construction budget. Engage a contractor to estimate buildout costs for your planned space program before entering lease negotiations. A credible cost estimate supports your TI request with specificity rather than an arbitrary number, and tells the landlord that you have done the work.
Leverage the landlord's vacancy exposure. In a market with meaningful vacancy, the landlord's alternative to your deal is a dark space generating no revenue. A $50,000 increase in TI may be far less costly to the landlord than six additional months of vacancy. Quantify the landlord's vacancy exposure and use it.
Negotiate the use restrictions broadly. If the lease restricts TI to specific improvement categories, negotiate the broadest possible definition. The more flexible the use, the more of your actual construction costs qualify for reimbursement.
Address the draw process. Negotiate a clear, fast reimbursement timeline. Landlords who take 60 to 90 days to process reimbursement requests impose a real cost on tenants managing construction cash flow. A 15 to 30 day reimbursement timeline with a specified payment method is a reasonable ask.
Protect the allowance with a sunset date. A TI allowance that expires before you have a reasonable opportunity to complete the buildout and submit for reimbursement is economically worthless. Negotiate a draw deadline that is realistically achievable given construction timelines and permit delays.
TI Allowance Deadlines and How to Protect Them
The draw deadline is the date by which the tenant must complete the work and submit reimbursement requests, or forfeit unused TI funds. This date is often set at 12 to 18 months after the lease commencement date.
Key protections to negotiate:
Force majeure extension. If construction is delayed by factors outside the tenant's control (supply chain disruptions, permitting delays, natural disasters), the draw deadline should extend automatically by the duration of the delay.
Rolling submission. Negotiate the right to submit reimbursement requests in phases as work is completed, rather than waiting for the entire buildout to be finished. This eliminates the cash flow problem of funding a complete buildout before receiving any reimbursement.
Landlord delay extension. If the landlord's failure to approve plans, issue permits, or respond to reimbursement requests delays the project, the draw deadline should extend by the same period.
Track the draw deadline as a critical date in your lease administration system and set alerts at 180, 90, and 60 days before expiration. Unused TI at the deadline is forfeited -- there is no cure period and no extension right absent a provision in the lease.
What Happens to Unused TI
If the buildout costs less than the TI allowance, the unused portion is typically forfeited unless the lease specifically allows the tenant to apply unused TI to rent credits, FF&E, or other costs. Negotiate this flexibility upfront -- after the lease is signed, landlords have no incentive to agree to repurpose unused TI funds.
Some leases allow the tenant to receive any unused TI as a rent credit applied over a defined period. This is effectively the same as a lower base rent, and both parties benefit from simplifying the transaction.
How TI Interacts with Lease Term and Rent
TI and base rent are economically linked. A landlord who increases TI by $500,000 on a 10-year lease needs the net present value of that TI to be recovered through the rent stream. If base rent does not increase to offset the higher TI, the landlord's return on the deal declines.
In practice, landlords who are negotiating both TI and rent simultaneously may offer more TI in exchange for a slightly higher base rent, a longer lease term, or reduced concessions elsewhere. Understanding this tradeoff helps tenants evaluate competing lease proposals on an apples-to-apples basis -- total occupancy cost over the full term, net of TI recovery.
Do You Have to Pay Back Tenant Improvement Allowance?
Tenants do not directly pay back TI allowance � the landlord funds the improvements, and the economic recovery happens through the rent stream over the lease term. However, there are three scenarios where TI repayment can become an obligation:
Early termination. If a tenant exercises a lease termination option or negotiates a lease buyout, the termination fee typically includes a "TI recapture" component � the unamortized value of the TI allowance at the time of termination. A tenant who received $500,000 in TI and terminates in year 3 of a 10-year lease may owe $350,000 in TI recapture on top of the base termination fee.
Lease default. If the tenant defaults and the landlord terminates the lease, the damages calculation often includes the unamortized TI as part of the landlord's losses. This is a significant exposure for tenants who received above-market TI and then encounter financial difficulty.
Amortized TI above allowance. If the landlord agreed to fund buildout costs above the market TI cap as a separately amortized loan (added to monthly rent), that amortized amount is explicitly a repayment obligation � it is structured like a loan even if it appears in the rent schedule.
Track the unamortized TI balance in your lease administration system. It is a contingent liability that affects any early termination analysis.
How Lextract Extracts TI Data
When a lease is processed through Lextract, the extraction pipeline identifies and structures TI-related fields including the allowance amount per RSF, any cap on the total dollar amount, the reimbursement structure (landlord work vs. tenant reimbursement), eligible expense categories, the draw deadline, the submission process, and any force majeure or landlord-delay extension provisions.
This structured data satisfies the ASC 842 lease incentive input (TI reduces the initial ROU asset) and gives lease administrators the critical date and process information needed to protect the TI draw right. For portfolios with dozens of leases, having this data extracted and organized at commencement eliminates the risk of forfeiting TI funds through missed deadlines.