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Leasing commissions, often abbreviated as LCs, are fees paid to real estate brokers for procuring a tenant and completing a lease. They are usually calculated as a percentage of the total rent over the lease term and are treated as a leasing cost, a category owners account for separately from routine operating expenses because it is tied to securing income rather than running the building.
What leasing commissions mean
When a landlord wants to fill vacant space, a broker is often the party who finds a qualified tenant, negotiates terms, and shepherds the deal to a signed lease. Leasing commissions are how that work is compensated. They are the fee a broker earns for bringing a tenant to the table and bringing a lease across the line.
Two brokers are frequently involved. The listing broker, sometimes called the landlord's broker, represents the owner and markets the space. The tenant representative, or tenant broker, represents the company looking for space. In most commercial markets the landlord pays both, and the total commission is split between them according to the listing or commission agreement. The tenant typically does not write a check, although the economics of the deal reflect the cost.
Crucially, leasing commissions are not an operating expense in the way utilities or janitorial service are. They are a transaction cost incurred to secure a stream of rental income. For that reason owners and investors track them alongside tenant improvements as part of the total cost of doing a deal, and these leasing costs are a standard line in any cash flow projection or property valuation.
It helps to picture the parties involved. The owner engages a listing broker under a written listing agreement that sets the commission and the marketing scope. When a prospect appears, that prospect often arrives with its own tenant representative, who is compensated out of the same commission pool the owner agreed to fund. The two brokers then work the deal toward a signed lease, and the commission is the payment that recognizes the value they created in bringing a paying tenant into vacant space. Seen this way, a leasing commission is the price of converting an empty suite into a contracted income stream, which is exactly why owners treat it as an investment in the asset rather than a cost of running it.
Why leasing commissions matter in commercial real estate
Leasing commissions are one of the most significant costs an owner incurs to generate income, and they directly affect the return a deal produces. A long lease at attractive rent looks excellent on the surface, but the commission and tenant improvement costs required to win it can consume a meaningful share of the early income. Understanding leasing commissions is therefore essential to evaluating whether a deal actually creates value.
The timing matters as much as the amount. Commissions are usually paid early in the lease, often at signing or shortly after, while the rent that pays for them arrives month by month over years. That mismatch creates a cash outlay up front that an owner must fund, which is why leasing costs are modeled carefully in any acquisition or refinancing analysis. A building with many leases rolling over at once can face a wave of commission and improvement costs in a single year.
Commissions also influence behavior. A well-structured commission rewards brokers for bringing strong tenants on solid terms, while a poorly structured one can encourage churn or short deals. Owners think carefully about how commissions are calculated, when they are earned, and how renewals are treated, because those rules shape the incentives of the brokers working on their behalf.
Across a portfolio, leasing commissions become a planning challenge. An owner needs to forecast which spaces will turn over, estimate the commission and improvement cost for each, and budget for the timing. Doing this accurately is the difference between a confident leasing plan and a series of surprises. The clearer the view of every lease, its expiration, and the commissions tied to renewing or replacing it, the more reliable that plan becomes.
How leasing commissions are structured
There is no single formula for leasing commissions. Structures vary by market, asset class, and the agreement between owner and broker. A few common approaches dominate.
Percentage of total lease value
The most common structure applies a percentage to the aggregate rent over the full term. A five-year lease at a fixed annual rent would generate a commission equal to a set percentage of the sum of those five years of rent. The percentage may be flat across the term or set on a sliding scale that pays a higher rate in the early years and a lower rate later, which keeps the cost weighted toward the income the owner is most confident about.
Per square foot
Some markets quote commissions as a fixed dollar amount per rentable square foot. This approach is simple to compare across deals and ties the fee to the size of the space rather than the rent, which can matter when rents vary widely.
Renewal and expansion rates
Commissions on a renewal are typically lower than on a new lease, because the broker's effort to retain an existing tenant is usually less than the effort to find a new one. Many agreements set a reduced renewal percentage, and similar logic applies to expansion rights exercised by a sitting tenant.
Earning and payment terms
The commission agreement defines when the fee is earned and when it is paid. A common arrangement earns the full commission at lease signing but pays it in installments, such as half on execution and half on rent commencement or tenant occupancy. Clear earning and payment terms protect both the owner and the broker if a deal stalls.
Gross versus net effective basis
A subtle but important question is whether the commission is calculated on the gross rent the lease quotes or on the net effective rent that remains after free rent and other concessions. A deal that offers several months of free rent has a lower true value than its headline rate suggests, and basing the commission on net effective rent aligns the fee with the income the owner actually receives. The choice between these two bases can change the commission meaningfully on a heavily concessioned deal, so owners and brokers settle it clearly in the agreement rather than leaving it to interpretation when the deal closes.
Key takeaways
- Leasing commissions are fees paid to brokers for procuring a tenant and completing a lease, usually a percentage of total lease value.
- They are a leasing cost, not an operating expense, and are paid early while the rent that funds them arrives over the term.
- Renewals typically carry lower commission rates than new deals, and clear earning and payment terms protect both sides.
Factors that affect leasing commissions
The size of a leasing commission depends on a set of variables that owners and brokers weigh in every deal. The most influential include:
- Lease term and total rent, since a percentage of aggregate rent grows with both the length of the lease and the rate.
- New deal versus renewal, with renewals and extensions almost always carrying a lower percentage than new leases.
- Single or dual broker, since a commission split between a listing broker and a tenant representative differs from a deal with one broker.
- Market and asset class, as customary rates differ between office, retail, and industrial, and between strong and soft markets.
- Free rent and concessions, which can change whether the commission is calculated on gross or net effective rent.
- Escalations and options, since rent steps and option periods may or may not be included in the value the commission is based on.
Because these variables interact, two leases with the same headline rent can produce very different commissions. Reading the commission agreement carefully, and modeling the result, is what keeps an owner's leasing budget accurate.
Common commission structures compared
The table below illustrates how different structures express the same idea in different ways. The figures are illustrative and meant to show the shape of each approach rather than a market standard.
| Structure | How it works |
|---|---|
| Flat percentage of total rent | One rate applied to the sum of all rent over the term; simple and predictable. |
| Sliding scale percentage | A higher rate in early years and a lower rate later, weighting cost toward near-term income. |
| Per square foot | A fixed dollar amount per rentable square foot, tying the fee to space rather than rent. |
| Reduced renewal rate | A lower percentage applied when an existing tenant renews rather than signs new. |
| Split between two brokers | The total commission divided between the listing broker and the tenant representative. |
| Net effective basis | Commission calculated after free rent and concessions, reflecting true net income. |
Best practices
Owners who manage leasing commissions well start by writing clear commission agreements that define the rate, the basis, the earning event, and the payment schedule for new deals, renewals, and expansions. Removing ambiguity up front prevents disputes when a deal closes and makes the cost easy to forecast. They also align the structure with their goals, using reduced renewal rates and sliding scales to reward the outcomes they actually want.
The second habit is treating leasing costs as part of the deal economics rather than an afterthought. Modeling the commission and tenant improvement cost against the rent and term shows whether a lease truly creates value. Across a portfolio, tracking every lease expiration and the commissions tied to renewing or replacing each tenant turns leasing into a planned program with a reliable budget rather than a stream of unbudgeted surprises.
A third habit is reconciling commissions against the leases they relate to so nothing is paid in error or left unpaid. Because commissions are often paid in installments tied to events such as rent commencement, an owner needs to confirm that each trigger has actually occurred before a payment goes out, and that the amount matches the agreed rate and basis. Tying every commission to its lease, its broker, and its payment schedule turns what can become a messy stream of invoices into a clear, auditable record. That discipline pays off most at scale, where dozens of deals close in a year and the total of leasing costs becomes a number owners and lenders examine closely when they assess the health of a property.
Frequently asked questions
What are leasing commissions in commercial real estate?
Leasing commissions are fees paid to brokers for procuring a tenant and completing a lease. They are typically calculated as a percentage of the total rent over the lease term and are treated as a leasing cost that owners account for separately from operating expenses.
Who pays leasing commissions?
In most commercial markets the landlord pays the leasing commissions for both the landlord's broker and the tenant's broker. The arrangement is set out in a listing agreement or commission agreement, and the tenant generally does not pay directly, though the cost is reflected in the economics of the deal.
How are leasing commissions calculated?
Leasing commissions are commonly calculated as a percentage of the total or aggregate rent over the lease term, sometimes on a sliding scale that decreases in later years. Some markets use a per-square-foot rate or a tiered structure, and renewals often carry a lower percentage than new deals.
When are leasing commissions earned and paid?
Leasing commissions are generally earned when a lease is signed and the conditions in the commission agreement are met. Payment is often made in installments, such as half on lease execution and half on tenant occupancy or rent commencement, depending on the terms negotiated.