What interest rate should I expect if the landlord amortizes my TI allowance into rent instead of paying it upfront in 2027?

The numbers you should expect

When a landlord agrees to provide a tenant improvement allowance but chooses to amortize it into rent rather than writing a check at lease signing, you are entering into an implicit financing arrangement. The interest rate embedded in that arrangement is rarely disclosed as a standalone line item — it sits inside the amortization factor applied to your base rent. In 2027, with the Federal Reserve's benchmark rate likely sitting in the 3.5% to 4.5% range (assuming gradual easing from the 2023–2025 tightening cycle), the all-in cost of landlord-provided financing typically lands between 7% and 10% for a straightforward deal.

Let me give you concrete numbers. Suppose your TI allowance is $50 per square foot on a 20,000-square-foot lease, giving you a total allowance of $1,000,000. If the landlord amortizes that over a five-year term at an 8% interest rate, your monthly payment would be approximately $20,276. Over the full five years, you would repay roughly $1,216,560 — meaning the interest cost is about $216,560, or 21.7% of the original allowance. If the same $1,000,000 were amortized at 6%, your monthly payment drops to $19,333, and total interest falls to roughly $160,000. At 10%, the monthly payment rises to $21,247, and total interest climbs to about $274,820.

The amortization period matters enormously. Most landlords amortize TI allowances over the initial lease term — commonly five, seven, or ten years — but some will stretch it to match the useful life of the improvements, which could be ten to fifteen years for a full fit-out. A longer amortization period lowers your monthly rent increase but raises the total interest paid over time. For example, that same $1,000,000 at 8% amortized over ten years instead of five produces a monthly payment of approximately $12,133 — significantly lower than the five-year figure — but total interest over the decade reaches roughly $455,960, more than double the five-year interest cost.

You should also understand how the amortized amount appears in your lease. Most commonly, the landlord calculates the annual payment required to service the allowance at the agreed interest rate over the lease term, divides that by the square footage, and adds the result to your base rent as a per-square-foot escalation. So if your base rent is $30 per square foot per year and the TI amortization adds $12.17 per square foot (the annual equivalent of the five-year, 8% example above), your total rent becomes $42.17 per square foot. That blended number is what you negotiate — not the interest rate in isolation, but the total annual cost per square foot.

Realistic ranges for 2027 vary by market and tenant profile. In Class A office space in major metropolitan areas like Manhattan, San Francisco, or Chicago, where landlords are eager to secure tenants amid soft demand, you might negotiate rates as low as 5.5% to 6.5%. In smaller secondary markets or for tenants with weaker credit profiles, expect 9% to 12%. Industrial and retail properties generally sit in the middle, with rates of 7% to 9% being typical. Your company's credit rating, the length of the lease commitment, and the landlord's own cost of capital all influence where you land within that spectrum.

What drives those numbers

The interest rate a landlord charges when they amortize a TI allowance into rent is not arbitrary — it is built from several identifiable components that you can analyze and challenge during negotiation. Understanding these drivers gives you leverage.

The landlord's cost of capital. The landlord is not using their own cash to fund your buildout in most cases. They are borrowing from a bank, a life insurance company, or a CMBS lender, and they will pass that cost through to you. In 2027, commercial real estate lending rates for well-leased properties typically run 150 to 300 basis points over the five-year Treasury rate. If the five-year Treasury sits at 3.5%, the landlord's borrowing cost is roughly 5.0% to 6.5%. They will add a margin on top of that for their risk and administrative effort, pushing the final rate to 7% to 9%.

Risk premium. The landlord bears several risks when they front the money for your buildout. If you default on the lease, they may not recover the unamortized balance of the allowance. If the buildout costs more than estimated, they may need to cover the overage. If the space sits vacant after your lease expires, the improvements may have little residual value to the next tenant. Each of these risks justifies a premium of 100 to 300 basis points over their cost of capital.

Market conditions. In a soft leasing market — which is likely in 2027 given the ongoing repricing of office space and elevated vacancy rates in many cities — landlords are more willing to offer favorable financing terms to secure a signed lease. You may find landlords willing to amortize at rates close to their own borrowing costs, effectively subsidizing the financing to win your tenancy. Conversely, in tight markets with low vacancy, landlords have less incentive to offer cheap financing and may quote rates at the higher end of the range.

Tenant credit quality. A Fortune 500 company with an investment-grade credit rating presents far less risk to a landlord than a startup with two years of operating history. Landlords will price this difference. A creditworthy tenant might receive a rate of 6% to 7%, while a riskier tenant could be quoted 10% to 12%. Your financial statements, business plan, and guarantors all factor into the landlord's assessment.

Lease term and structure. The length of your lease commitment directly affects the rate. A ten-year lease gives the landlord more time to recover their investment and reduces their re-letting risk, so they may offer a lower rate. A three-year lease with a large TI allowance is disproportionately risky for the landlord — they may not even recover the principal, let alone earn interest — so expect rates at the top of the range or a refusal to amortize altogether.

The allowance amount relative to the deal. If your TI allowance is modest — say $10 to $15 per square foot — the landlord may view the financing as a minor accommodation and quote a rate at or near their cost of capital. If the allowance is large — $75 to $100 per square foot for a full build-out of a shell space — the financing represents a substantial commitment, and the landlord will price it more carefully with a higher margin.

Comparable financing alternatives. The rate you should expect is also anchored by what you could obtain elsewhere. If your company could borrow the same $1,000,000 from a bank at 7% and pay for the buildout yourself, the landlord's amortization rate should not exceed that threshold by a wide margin. Landlords know this and typically keep their quoted rates within 100 to 200 basis points of what a tenant could secure independently, accounting for the convenience and the fact that the allowance is tied to the lease.

Lease, TI allowance, and negotiation levers

The TI allowance and its amortization are among the most negotiable components of a commercial lease. Understanding the levers available to you can save hundreds of thousands of dollars over the life of your lease.

The allowance amount itself. Before you worry about the interest rate, negotiate the size of the allowance. In 2027, typical TI allowances vary widely by property type and market. For office space, expect $30 to $80 per square foot for a standard fit-out, with $50 to $100 per square foot for higher-end finishes or shell-and-core spaces that require substantial work. Industrial space typically commands lower allowances of $10 to $25 per square foot because the improvements are less intensive. Retail falls in between, often $25 to $60 per square foot depending on the level of finish required. The allowance should cover your architectural fees, engineering, permits, construction, furniture that is affixed to the property, and project management costs.

Unused allowance treatment. Negotiate what happens to allowance funds you do not spend. Many landlords will allow you to apply unused TI funds toward rent — effectively giving you free rent — or toward future expansion costs. Some will pay the unused balance to you in cash, though this creates taxable income. Others will let you increase the scope of your improvements. The most favorable terms allow you to convert unused allowance to additional rent abatement, which is economically equivalent to a discount on your occupancy cost.

The interest rate as a concession. When a landlord quotes a rate of 9% for TI amortization, treat that as a starting point, not a final offer. You can negotiate the rate down by offering something in return: a longer lease term, a personal guarantee, a larger security deposit, or acceptance of the space in "as-is" condition. Each concession you make reduces the landlord's risk and justifies a lower rate. A common negotiation pattern is to offer a seven-year lease instead of five in exchange for a 100-basis-point reduction in the amortization rate.

The amortization period. Negotiate the period over which the allowance is amortized. Landlords typically want to recover the full allowance within the initial lease term, but you can argue for a longer period if the improvements have a useful life beyond the lease. Tenant improvements like HVAC systems, electrical infrastructure, and permanent partitions often last 10 to 15 years. If you can convince the landlord to amortize over ten years instead of five, your annual rent increase drops substantially, even if the interest rate stays the same.

Buyout provisions. Some leases include a provision allowing you to prepay the unamortized balance of the TI allowance at any time. This is valuable because it lets you refinance the obligation if interest rates fall or if your company's credit improves. If the landlord resists a buyout provision, ask for a "yield maintenance" clause that specifies the prepayment penalty — typically 1% to 2% of the outstanding balance or a make-whole provision based on the difference between the original rate and current market rates.

Cash versus amortized allowance. Always ask whether the landlord will pay the allowance in cash rather than amortizing it into rent. Some landlords, particularly those with access to cheap capital or those who own the building free and clear, may agree to pay the allowance upfront in exchange for a slightly higher base rent. This arrangement gives you full control over the construction process and avoids the embedded interest cost entirely. In 2027, with many landlords eager to sign tenants, the proportion of deals with upfront cash allowances has increased — perhaps 40% to 50% of leases now include some cash component.

Gross-up and escalation clauses. The TI amortization amount is typically added to your base rent and then subject to the same annual escalations as the rest of your rent. If your lease includes 3% annual increases, the TI amortization component will also rise by 3% each year, increasing your total interest cost above the nominal rate. Negotiate to have the TI amortization component frozen at its initial level or subject to a lower escalation rate than the base rent.

Sequencing with other concessions. TI allowance amortization does not exist in isolation. It interacts with free rent periods, moving allowances, and base rent levels. A landlord might offer you a lower interest rate on the TI amortization in exchange for a shorter free rent period, or a higher allowance with a higher rate. Model the total net present value of the lease under different scenarios to understand which combination of concessions is most valuable to you. A $0.50 per square foot reduction in base rent is often worth more than a 50-basis-point reduction in the TI amortization rate, depending on the allowance size and lease term.

Sequencing the buildout

The timing of your TI allowance draw and the construction schedule directly affect the effective interest rate you pay. Understanding the sequencing helps you plan your cash flow and negotiate better terms.

In a typical transaction, the lease is signed and the landlord begins the amortization schedule immediately, even though the construction may not be complete for several months. This means you are paying rent — including the TI amortization component — while the space is still under construction. Negotiate for a rent commencement date that aligns with the substantial completion of the buildout, not the lease signing date. This effectively gives you an interest-free period during construction.

The allowance draw schedule matters as well. Some landlords disburse the allowance in a lump sum at the start of construction; others pay in installments tied to construction milestones. If the landlord pays the full allowance upfront, they bear the cost of carrying that capital during construction, which justifies a slightly higher interest rate. If they pay in installments — say 30% at permit approval, 40% at rough-in completion, and 30% at certificate of occupancy — their average capital at risk is lower, and you should push for a lower rate.

Construction overruns. If your buildout costs more than the allowance covers, you have several options. You can pay the overage out of pocket, which avoids additional financing costs. You can ask the landlord to increase the allowance and amortize the additional amount into rent at the same interest rate — a common arrangement that keeps your out-of-pocket costs at zero. Or you can accept a reduced scope of work. In 2027, construction costs remain elevated due to labor shortages and supply chain disruptions, so budget a 10% to 15% contingency into your allowance request.

Change orders. During construction, you will inevitably encounter changes — a wall that needs to move, additional electrical outlets, or upgraded finishes. Each change order adds to the cost. If the landlord is managing the construction, they may process change orders through the same amortization mechanism, adding the cost to your TI balance and extending the amortization schedule. Review change orders carefully and confirm the interest rate applied to any additions matches your original agreement.

Punch list and completion. The interest clock starts when the landlord disburses funds, not when construction is complete. Delays in construction therefore cost you money in the form of interest on funds already spent but not yet benefiting you. Ensure your lease includes a "substantial completion" definition and a mechanism for rent abatement if the landlord fails to deliver the space on time. A typical provision grants one month of free rent for each month of delay beyond the agreed completion date.

Early occupancy. If you need to occupy the space before the full buildout is complete — perhaps to install your own technology infrastructure or to begin moving in furniture — negotiate a partial occupancy arrangement. You might take possession of a portion of the space while construction continues in other areas, with rent prorated accordingly. This can save you money by allowing you to generate revenue from operations before the full rent obligation begins.

Renewal and expansion options. If your lease includes renewal options, clarify how the TI allowance amortization is treated at renewal. Some landlords will continue the amortization schedule into the renewal term; others will require the balance to be fully paid by the end of the initial term. If the balance must be paid in full, negotiate a buyout amount at the renewal date or a refinancing of the remaining balance at then-current market rates. Similarly, if you have expansion options into adjacent space, the TI allowance for that expansion should be negotiated separately, with its own amortization schedule and interest rate.

Related questions

How is the TI allowance amortization interest rate calculated?

Landlords typically start with their cost of capital — often the five-year Treasury rate plus 150–300 basis points — then add a risk premium of 100–300 basis points based on your credit, lease term, and market conditions. The final rate in 2027 usually lands between 6% and 12%.

Can I negotiate the interest rate on amortized TI allowance?

Yes. Offer a longer lease term, stronger guarantees, or a larger security deposit in exchange for a lower rate. Compare the landlord's quote to what a bank would charge you for the same funds, and use that as leverage.

What happens if I do not spend the full TI allowance?

Most leases allow unused funds to be applied toward rent, future expansion, or additional improvements. Some landlords pay unused balances in cash, though this creates taxable income. Negotiate the treatment of unused allowance before signing.

Is it better to take the TI allowance upfront or amortized?

Upfront cash gives you control and avoids embedded interest, but landlords often offer a larger total allowance when amortized. Model the net present value of both options using your company's own cost of capital to determine which is more favorable.

FAQ

What interest rate should I expect for TI amortization in 2027? Expect 6% to 12% per annum, with 7% to 9% most common for creditworthy tenants in major markets. The rate reflects the landlord's borrowing cost plus a risk premium. Soft market conditions may push rates toward the lower end as landlords compete for tenants.

How does the landlord's amortization of TI allowance into rent actually work? The landlord calculates the annual payment needed to repay the allowance amount plus interest over the lease term, divides by square footage, and adds that figure to your base rent. The rate is embedded in this calculation and rarely shown as a separate line item.

What is the difference between the TI allowance interest rate and the amortization factor? The interest rate is the annual percentage cost of financing. The amortization factor converts that rate into a payment schedule — a monthly or annual amount per dollar of allowance based on the rate and term. Higher rates and shorter terms produce higher payments.

Can the landlord change the interest rate during the lease? No, the rate is fixed at lease signing and remains constant throughout the amortization period. However, if your lease includes rent escalations, the TI amortization component may increase proportionally, effectively raising your total cost above the nominal rate.

What happens to the unamortized TI balance if I terminate the lease early? You typically owe the outstanding balance as a lump-sum payment upon early termination. Some leases allow you to continue making payments through the original term, while others require immediate payment. Negotiate this provision carefully before signing.

How does my credit score affect the TI amortization interest rate? Landlords assess your company's financial strength, operating history, and guarantors. Investment-grade tenants receive the most favorable rates — often near the landlord's cost of capital — while startups and weaker credits face rates at the top of the range or may be denied amortization entirely.

Sources

[CBRE — Tenant Improvement Allowances and Lease Economics](https://www.cbre.com/insights/ viewpoints/tenant-improvement-allowances)

Colliers — Guide to Tenant Improvement Allowances in Commercial Leases

JLL — Office Lease Negotiation: Tenant Improvement Allowances

Investopedia — Commercial Real Estate Financing Rates

The Balance — How Tenant Improvement Allowances Work

Commercial Cafe — Tenant Improvement Allowance Trends

Federal Reserve — Selected Interest Rates (H.15)

U.S. Small Business Administration — Commercial Lease Negotiation

National Association of REALTORS — Commercial Real Estate Leasing

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