The standard commission for a commercial lease runs 4% to 6% of the total rent the tenant will pay over the full lease term, and the landlord almost always pays it. The exact rate depends on property type, deal size, lease length, and local market norms. Longer leases typically use a sliding scale that drops the percentage in later years, and the way rent escalations and lease structure interact with the calculation can shift the final fee by thousands of dollars.
What Rate to Expect
Office and retail deals tend to land at the higher end of the 4% to 6% band. Industrial space such as warehouses often sits lower, because the square footage drives a large dollar fee even at a modest percentage. Smaller suites and shorter terms usually carry higher rates, since the broker’s workload to close a one-year lease on a small space isn’t much less than closing a five-year deal on something bigger.
Longer leases rarely use a flat percentage across the full term. A common structure is 4% to 6% on rent for the first five years and 2% to 3% on any years after that. Some agreements go further and drop the rate by a point each year. The reasoning is that the broker’s heaviest work happens upfront, when the tenant is identified, spaces are toured, and lease terms are negotiated. Years six through ten of a ten-year deal don’t require much additional effort, so the compensation tapers.
How the Fee Is Calculated
The percentage applies to total lease value, meaning the sum of all base rent payments across the full term. A tenant who signs a five-year lease at $5,000 per month produces a total lease value of $300,000, and a 5% commission on that number is $15,000.
That example assumes flat rent, which is rare. Most commercial leases include annual escalations of 2% to 4%, and the commission is calculated on the actual rent due each year, not the starting rent. A lease that begins at $5,000 per month with 3% annual escalations produces a total lease value closer to $318,500 over five years, and the commission reflects that higher figure. Landlords who budget off the starting rent end up short at closing.
Lease structure also matters. In a triple net lease, the tenant separately pays property taxes, insurance, and common area maintenance on top of base rent, and the commission is calculated only on the base rent. Those pass-throughs are reimbursements for operating costs, not rental income, so brokers don’t earn a percentage on them. In a full-service gross lease, rent already includes those expenses, and the commission applies to the full payment. On a large deal, the distinction can swing the fee by thousands.
A Worked Example With Escalations
Consider a seven-year office lease starting at $8,000 per month with 3% annual escalations, commissioned at 5% for years one through five and 3% for years six and seven:
- Year 1: $96,000 in base rent
- Year 2: $98,880
- Year 3: $101,846
- Year 4: $104,902
- Year 5: $108,049
- Year 6: $111,290
- Year 7: $114,629
The 5% commission on years one through five totals $25,484. The 3% on years six and seven adds $6,778. Total broker fee: $32,262. Estimating with only the starting monthly rent and a flat 5% across all seven years would have projected $33,600 and missed the tiered reduction. Running the real numbers matters.
Who Pays
The landlord pays the commission in the vast majority of commercial lease transactions. The obligation is set in a listing agreement signed between the owner and the broker before the space hits the market. Tenants almost never pay broker fees directly, though the cost gets priced into asking rent. Landlords treat commissions as a cost of doing business and subtract them alongside tenant improvement allowances when modeling the net return on a deal.
The type of listing agreement controls when the fee is owed. Under an exclusive right to lease agreement, the landlord owes the commission no matter who finds the tenant. Even if the owner’s cousin walks in and signs a lease without the broker involved, the broker still earns the fee. Under an exclusive agency agreement, the landlord only owes the commission if the broker or another agent brings the tenant. If the landlord sources the tenant independently, no commission is due. Most brokers push for the exclusive right to lease; landlords who want the flexibility to find their own tenants should negotiate for the exclusive agency structure and accept the tradeoff that comes with it.
How Two Brokers Split the Commission
Commercial lease deals frequently involve two brokers: a listing broker representing the landlord and a tenant representative working for the business looking for space. When both are involved, the total commission is divided between them. A 50/50 split is most common, though 60/40 splits favoring the listing broker also appear, especially where the listing broker did significant marketing or capital work on the property.
Mechanically, the landlord writes one check to the listing broker for the full amount, and the listing broker then distributes the tenant rep’s share under a co-brokerage agreement signed during the letter of intent stage. That agreement spells out the split percentage, payment timing, and what happens if the deal falls apart. Not getting it in writing before the lease is executed is one of the most common sources of commission disputes.
Renewals and Expansions
Renewals and expansions generate commissions too, usually at a lower rate than a new lease. The standard approach treats the renewal period as if it were tacked onto the original term, which means the renewal years fall into the lower tier of a sliding scale. If the original deal was 6% for years one through five and 3% thereafter, a five-year renewal would be commissioned at 3% across the board, because those years are effectively years six through ten.
Landlords sometimes assume no commission is owed on a renewal because the tenant is already in place. That assumption often collides with language in the original listing agreement or the tenant rep’s engagement letter, which may explicitly cover renewals and expansions. Brokers argue they do real work on renewals: negotiating updated rent, securing tenant improvement dollars, and keeping the tenant from shopping the market. The commission is lower, but it’s still owed. Reading the commission clause in every brokerage agreement before signing is the only way to avoid surprises later.
When the Commission Gets Paid
Commission payments are usually tied to deal milestones rather than paid in a single lump sum. The most common schedule splits the fee into two installments: 50% when the lease is fully executed by both parties, and 50% when the tenant takes possession or begins paying rent. That structure compensates the broker for closing while protecting the landlord against paying the full fee for a tenant who never shows up.
If the lease falls apart before the tenant moves in, the broker’s entitlement to the second installment depends entirely on the language in the brokerage agreement. Some agreements guarantee the full commission upon lease execution regardless of what happens afterward. Others tie the second payment to actual occupancy or rent commencement. Landlords who want to limit their exposure in a deal that collapses should push for occupancy-triggered payment terms and have them spelled out clearly.
Tail Clauses and Broker Lien Rights
Most brokerage agreements include a tail clause, also called a protection period, that extends the broker’s right to a commission for a set window after the listing agreement ends. If a tenant the broker introduced during the listing period signs a lease during the tail window, the broker still earns the fee. Protection periods typically range from 90 days to one year, depending on the market and the broker’s leverage.
The clause exists because some landlords let listing agreements expire and then sign leases with tenants the broker spent months cultivating. Without protection, brokers would have no recourse. The risk on the landlord’s side is being locked into commission obligations for tenants they would have found anyway. A reasonable move is to negotiate a defined tail period and insist on a written list of specific prospects the broker has introduced, so the tail only covers tenants the broker actually brought in.
Brokers who don’t get paid also have a statutory backstop in many jurisdictions. Roughly 34 states have enacted commercial broker lien laws, which allow a broker to file a lien against the property when the agreed commission goes unpaid. These liens function similarly to a contractor’s mechanic’s lien and can be foreclosed on if the debt isn’t resolved. They give brokers real leverage in commission disputes and give landlords a strong incentive to pay promptly.
Tax Reporting and Deduction
Landlords who pay $600 or more in commissions to a broker during the year must report the payment to the IRS on Form 1099-NEC. The form is due to both the broker and the IRS by January 31 of the following year. If the broker operates through a corporation, including an LLC taxed as a C or S corporation, the reporting requirement generally doesn’t apply. Sole proprietors, partnerships, and single-member LLCs taxed as individuals still trigger the filing obligation.1Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC
On the deduction side, landlords generally cannot write off the full commission in the year it’s paid. Because a lease commission secures a revenue stream over multiple years, the IRS treats it as a capital expense that must be amortized over the lease term. A $30,000 commission on a ten-year lease would be deducted at $3,000 per year. Exceptions exist for month-to-month leases, leases under one year, and commissions below $5,000, which can typically be deducted in full in the year paid. Getting this wrong can create issues on audit, so landlords handling substantial commission payments should confirm the treatment with a tax professional.