First Ti Calculator






First TI Calculator – Calculate Tenant Improvement Costs & Allowances


First TI Calculator

Professional Commercial Tenant Improvement Analysis


Total rentable area of the commercial space.
Please enter a valid square footage.


Amount provided by the landlord for improvements.
Enter a valid dollar amount.


Expected cost of construction and materials.
Enter a valid estimated cost.


Fixed fees not based on square footage.


Buffer for unexpected expenses (usually 5-15%).


Total Tenant Out-of-Pocket
$0.00
Total Landlord TI Allowance:
$0.00
Total Project Cost (incl. Contingency):
$0.00
Cost Coverage Ratio:
0.00%
Net Cost per Square Foot:
$0.00

Budget Comparison: Allowance vs. Actual Cost

Allowance Total Cost

Figure 1: Visual comparison of landlord allowance vs. total projected project costs.

What is a First TI Calculator?

A first ti calculator (First-Time Tenant Improvement Calculator) is a specialized financial tool designed for commercial real estate tenants, landlords, and brokers. It calculates the financial bridge between what a landlord offers for office or retail build-outs and the actual costs of construction. In the world of commercial leasing, the first ti calculator is essential for determining if a lease incentive is sufficient to cover the “white box” or custom improvements needed to make a space functional.

Who should use a first ti calculator? Entrepreneurs opening their first retail store, companies relocating to a new headquarters, and medical practices setting up new clinics all rely on this tool. A common misconception is that the TI allowance provided by a landlord is “free money.” In reality, the first ti calculator shows that it is often a loan amortized into the rent or a capped reimbursement that rarely covers the full scope of premium finishes.

First TI Calculator Formula and Mathematical Explanation

The logic behind the first ti calculator involves several variables that interact to determine the final liability of the tenant. The core calculation determines the “Gap” or out-of-pocket expense.

Step-by-Step Derivation:

  1. Total Allowance: Calculated as Area (SF) × Allowance per SF.
  2. Gross Construction Cost: (Area × Build-out Cost PSF) + Soft Costs.
  3. Adjusted Total Cost: Gross Cost × (1 + Contingency Percentage).
  4. Net Out-of-Pocket: Adjusted Total Cost – Total Allowance.
Variable Meaning Unit Typical Range
SF Rentable Square Footage Sq. Ft. 500 – 50,000+
Allowance Landlord’s TI Contribution $/SF $10 – $150
Build-out Cost Hard construction costs $/SF $50 – $250
Soft Costs Design, legal, and permits USD ($) Varies by project
Contingency Safety buffer for overruns % 5% – 20%

Table 1: Key variables used in the first ti calculator for budget estimation.

Practical Examples (Real-World Use Cases)

Example 1: The Boutique Retail Shop

Imagine a tenant leasing a 1,200 SF retail space. The landlord offers a $30/SF allowance. The tenant uses the first ti calculator to input a construction estimate of $70/SF, with $3,000 in soft costs and a 10% contingency.

  • Total Allowance: $36,000
  • Total Project Cost: $95,700
  • Tenant Expense: $59,700

The first ti calculator reveals that the tenant must secure nearly $60,000 in additional financing before signing the lease.

Example 2: Tech Startup Office Space

A startup takes 5,000 SF. The landlord offers a “generous” $80/SF allowance. The build-out is estimated at $90/SF with high-end tech infrastructure, plus $15,000 in soft costs and a 5% contingency.

  • Total Allowance: $400,000
  • Total Project Cost: $488,250
  • Tenant Expense: $88,250

Using the first ti calculator, the startup realizes the allowance covers 82% of the project, leaving a manageable gap.

How to Use This First TI Calculator

Using the first ti calculator is straightforward. Follow these steps to get an accurate financial forecast for your commercial build-out:

  1. Input Space Dimensions: Enter the total rentable square footage from your lease agreement into the first ti calculator.
  2. Enter Allowance: Look for the “Tenant Improvement Allowance” section in your LOI (Letter of Intent) or lease.
  3. Estimate Costs: Speak with a contractor to get a rough per-square-foot estimate for your specific industry.
  4. Include Soft Costs: Don’t forget your architect and permit fees! The first ti calculator accounts for these separately.
  5. Review the Chart: Look at the dynamic visual to see how much of the bar is covered by the landlord vs. your own capital.

Key Factors That Affect First TI Calculator Results

  • Lease Term Length: Landlords are more likely to offer a higher allowance for a 10-year lease compared to a 3-year lease. This drastically changes the first ti calculator outcomes.
  • Market Conditions: In a “tenant’s market,” allowances increase, reducing your out-of-pocket costs shown in the first ti calculator.
  • Building Condition: A “cold shell” requires more work than a “second-generation” space, increasing the build-out cost variable.
  • Creditworthiness: Tenants with strong financials may negotiate higher TI allowances, improving the first ti calculator ratio.
  • Inflation & Material Costs: Rising costs for steel and lumber can make your initial first ti calculator estimates obsolete if not updated regularly.
  • Scope of Work: Special requirements like commercial kitchens or server rooms will push costs per square foot well above market averages.

Frequently Asked Questions (FAQ)

Does the first ti calculator include furniture and equipment?

Usually, no. TI allowances typically cover “real property” improvements. However, you can add these to the “Soft Costs” field in our first ti calculator to see the total impact.

What if the landlord performs the work?

This is called a “Turnkey build-out.” In this case, the first ti calculator would show a $0 out-of-pocket cost, but your rent might be significantly higher.

Is the TI allowance taxable?

It can be. Depending on how the lease is structured, a TI allowance might be considered taxable income for the tenant. Always consult a tax professional after using the first ti calculator.

Can I use the first ti calculator for residential leases?

TI allowances are almost exclusive to commercial real estate. Residential leases rarely offer build-out incentives.

What is a “reimbursement” TI?

The first ti calculator assumes the landlord pays, but often you must pay the contractor first and get reimbursed. Ensure you have the bridge capital ready.

How accurate are the construction cost estimates?

Estimates in the first ti calculator are only as good as the data provided. Always include a 10-15% contingency for accuracy.

Why are soft costs so high?

Architectural drawings and city permits can take up 10-20% of a budget. The first ti calculator highlights these hidden expenses.

Should I negotiate for lower rent or a higher TI?

Use the first ti calculator to see your cash-on-hand requirements. If you are low on cash, a higher TI is usually better even if rent is slightly higher.


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