| Year | Annual Rent | Abatement | Net Rent | Escalation | Comm. Rate | Commission |
|---|---|---|---|---|---|---|
| Enter lease terms above to see the commission schedule | ||||||
Online Commercial Lease Commission Calculator
How to Use the Lease Commission Calculator
Understanding the costs involved in a commercial real estate transaction is vital for both landlords and tenants. While rates can vary based on the market and property type, most commercial lease commissions are calculated as a percentage of the total lease value over the term of the agreement.
The Standard Lease Commission Formula
To estimate the broker fee, our lease commission calculator typically uses the following formula:
Total Rent X Commission Percentage = Total Commission Fee
For example, if a tenant signs a 5-year lease at $50,000 per year with a 4% commission rate, the total commission would be based on the $250,000 aggregate lease value, resulting in a $10,000 fee.
Key Factors That Affect Broker Fees
Several variables can influence the final numbers you see on a lease commission calculator:
- Lease Term: Longer-term leases often result in higher total commissions but may feature “declining scales” (e.g., 5% for year one, 4% for year two).
- Property Type: Commission structures for Long Island office spaces may differ slightly from industrial or retail lease agreements.
- Tenant Improvements (TI): In some negotiations, the commission is calculated on the “net” rent after subtracting any tenant improvement allowances.
- Co-Brokering: If both a landlord’s agent and a tenant representative are involved, the commission may to subject to an override (office leases) or split (industrial & retail). The NAI Lease Commission Calculator uses an override scenario.
Why Use a Commercial Lease Calculator?
Using a professional lease agent fee calculator ensures transparency during negotiations. Whether you are a property owner budgeting for a new vacancy or a business looking for Long Island commercial real estate, knowing these figures upfront helps you manage your cash flow and closing costs more effectively.
Enter your deal details below and the results update automatically. When your calculation is complete, print or save a one-page PDF report.
06em; text-transform: uppercase; color: #0a0a0a;”>Property Address
Street address, city, state, and zip code of the leased property. 1em; color: #999; background: #e8e8e8; padding: 1px 5px; margin-left: 4px; vertical-align: middle;”>OPTIONAL
If another firm is sharing the commission, enter their name here. Leave blank if there is no co-broker. 06em; text-transform: uppercase; color: #0a0a0a;”>Co-Broker Split
Percentage of the total commission paid to the co-broker.
The remaining percentage is automatically retained by the listing broker. — ── SECTION 2: SPACE ── –>
02
Space
The rentable square footage (RSF) of the space being leased.
Annual base rent per square foot. Enter the dollar amount only — for example, enter 20 for $20.00 PSF/year.
Real estate tax pass-through per square foot per year, if applicable. Enter 0 if none.
03
Lease Term
The commencement date of the lease.
Total length of the lease in months. Enter 60 for a 5-year lease, or 124 for a 10-year 4-month lease.
If the lease does not end on a full year boundary, enter the number of remaining months. Enter 4 for a 4-month stub period, or 0 if the lease ends on a complete year.
04
Abatement & Escalation
Number of free-rent months included in the deal. Enter 0 if no abatement applies.
How the free-rent period is applied across the lease term:
Percentage by which the base rent increases each year. Enter 3 for 3% annual escalations. Enter 0 for a flat, non-escalating rent.
05
Commission Rates
Commission rate applied to net rent in the first three lease years. Standard rate: 7%.
Commission rate applied to net rent from Year 4 through the end of the lease. Standard rate: 3%.
An additional percentage added on top of the total calculated commission, such as a management override. Leave at 0.00 if not applicable.
06
Reading the Results
Once all fields are filled in, the Results bar displays four summary figures:
| Field | Description |
|---|---|
| Total Lease Value | The sum of all annual rents over the full lease term, before abatement is applied. |
| Total Commission | The total brokerage commission calculated on net rent (after abatement) across all lease years. |
| Broker Net | The portion of the total commission retained by the listing broker after the co-broker split. |
| Co-Broker | The portion of the commission allocated to the co-broker. Displays a dash if no co-broker was entered. |
07
Year-by-Year Schedule
The table below the Results bar shows a full commission breakdown for every year of the lease:
| Column | Description |
|---|---|
| Year | Each full lease year, numbered sequentially. A Final Partial row appears if the lease term includes a stub period. |
| Annual Rent | Gross rent due for that year, after escalation but before abatement. |
| Abatement | The free-rent credit applied to that year, shown as a negative value in red. |
| Net Rent | Annual Rent minus Abatement — the amount on which the commission is calculated. |
| Escalation | The escalation rate applied to that year’s rent. A dash (—) indicates no escalation in Year 1. |
| Comm. Rate | The commission percentage applied to that year — 7% for Years 1–3, 3% from Year 4 onward. |
| Commission | The commission earned for that specific year. The Totals row at the bottom shows the sum across all years, highlighted in green. |
55;”>⚠ Pop-up blocker: The report opens in a new browser window. — ── FOOTER ── –>
Have questions about a specific transaction or need assistance with a deal? Contact NAI Long Island →
Why Use a Lease Commission Calculator?
Commission math gets complicated quickly once you add free rent, annual escalations, different rates for new and renewal terms, and splits between a listing broker and a tenant representative. A lease commission calculator handles those variables in seconds, so landlords can budget for leasing costs, brokers can confirm fees before a deal is signed, and tenants can understand how the economics of a lease are structured.
Using a lease commission calculator early in negotiations also makes it easier to compare proposals side by side. If one offer includes a longer term but more free rent, the lease commission calculator shows exactly how each structure affects total lease value and the resulting commission.
Keep in mind that this lease commission calculator provides estimates only. Like any lease commission calculator, it is designed for planning purposes. Actual commissions are set by the listing agreement or commission agreement for each property, and local customs vary by property type and market. For guidance on a specific transaction, speak with one of our brokers or contact NAI Long Island.
Tips for Getting Accurate Results
Enter rent exactly as it appears in the proposal, including any escalations and abatement periods. If commission rates differ for the first years of the term and later years, use the separate rate fields so the lease commission calculator can apply each rate to the correct portion of the lease.
More Tools and Resources
Finished with the lease commission calculator and looking for other ways to analyze a deal? Explore our tenant occupancy cost calculator, office space size calculator and commercial mortgage calculator. As a member of NAI Global, NAI Long Island also has access to research and market data from commercial real estate professionals worldwide.