How a business broker gets paid when a company sells
The question sounds simple. A company sells, a broker gets a check. But the mechanics underneath that transaction — how the fee is structured, when it is actually earned, what happens when seller financing or an earnout enters the picture, and how the money moves on closing day — are more nuanced than most principals in the deal expect, and more consequential to the broker than any single line item suggests. If you are a business broker, you already know the work you put into a deal is front-loaded, capital-intensive, and largely invisible until the closing statement arrives. Getting paid in full, cleanly, on the right base, at the right moment, is not an afterthought. It is the entire point of everything that comes before it.
The success fee: what you earn and what triggers it
Business brokers only get paid if the deal closes, meaning they invest substantial time, money, and resources upfront with no guarantee of payment. That risk-for-reward arrangement is the foundational premise of how the profession is structured, and it shapes everything about how the fee is designed.
Most brokers work on a commission basis, earning a percentage of the business’s final sale price — also called a “success fee.” The success fee is negotiated before the listing goes active and documented in the engagement letter or listing agreement. It is a percentage fee on the sale price of the business, negotiated before you list with a broker and paid at closing.
On the Main Street end — businesses selling under $1 million — the numbers are fairly predictable. Most brokers charge 10% to 12% of the final sale price for businesses under $1 million. For smaller deals, brokers often have a minimum flat fee, usually no less than $10,000. That minimum exists because a 10% commission on a $250,000 sale produces $25,000, which may barely cover the broker’s time given a deal that still requires a full marketing campaign, confidential outreach, NDA management, due diligence coordination, and closing support. The minimum floor matters because it turns the headline percentage into a fiction on smaller deals — a 10% success fee with a $25,000 minimum applied to a $150,000 sale price equals $25,000, which is an effective rate of 16.7%.
Once deals move above $1 million in enterprise value, the industry standard shifts away from a flat percentage and toward a tiered structure.
The Lehman formula and the Double Lehman: how the tiers actually work
The Double Lehman Scale is an equation used by brokers, investment bankers, and merger and acquisition advisors to calculate their commission, also known as a success fee. The method to compute the advisor’s compensation was originally developed in the late 1960s and used by Lehman Brothers when raising business capital for their clients.
The original formula applied to transactions above $1 million and followed a 5-4-3-2-1 tiered structure. That original scale has not survived contact with inflation. The Double Lehman or Modern Lehman formula is now more popular as a method for computing the advisor’s fee — each percentage is doubled: 10% of the first $1 million, 8% of the second $1 million, and so forth.
To make that concrete, here is what Double Lehman produces on a $5 million business sale: 10% on the first million ($100k), 8% on the second million ($80k), 6% on the third million ($60k), 4% on the fourth million ($40k), and 2% thereafter ($20k) — totaling $300,000. That is a blended rate of 6% on a $5 million deal. On a $2 million deal the same formula produces $180,000, a blended rate of 9%. The tiered structure acknowledges something real: the effort required to close a $5 million deal is not five times the effort required to close a $1 million deal, but it is considerably more, and the commission needs to reflect both the scale and the risk.
Rather than sticking to a straight flat fee, the Lehman Scale created a tiered fee structure — designed to mirror the complexities, future performance targets, and milestones characteristic of larger deals.
There are variations beyond the standard Double Lehman. Some M&A advisors may begin at 8% on the first million and level out at 4%. Others use a Modified Lehman that applies a flat rate across higher tranches. Some brokers simply charge a flat 10% on the entire sale price for deals under $5 million. The right structure for any engagement is a function of deal size, complexity, industry, and what the market in that geography will support.
What never varies: the Lehman Scale typically refers only to the success fee paid to the business broker or M&A intermediary for successfully closing a deal. It is performance-based, contingent on close, and payable at the transaction table.
What the commission is calculated on — and why the base matters more than the rate
Brokers who focus only on agreeing to a percentage without pinning down the definition of “transaction value” in the engagement letter are leaving money on the table or, worse, walking into a dispute at the closing statement.
A 10% flat broker fee applied to “total transaction value” can pull in inventory, accounts receivable, working capital, real property leasehold improvements, and seller financing notes — while the same 10% applied to “purchase price net of inventory and assumed liabilities” can produce a fee 15 to 25% lower on inventory-heavy businesses. On a $1.2 million retail deal with $300,000 of inventory, the difference is $30,000.
This is not a minor bookkeeping issue. It is a fundamental question that must be resolved before the engagement letter is signed, because once a deal is under letter of intent and both sides have momentum toward close, renegotiating the commission base is nearly impossible without damaging the relationship.
Transaction value can include the total value of all cash, securities, or other assets or property transferred in the deal — which means a broker representing a seller who is receiving a mix of cash at close, a seller note, and a holdback needs to understand precisely what the listing agreement says about each component.
Retainers: what they are, how they interact with the success fee, and why they exist
Beyond the commission, many brokers charge an upfront retainer fee — a non-refundable payment made before they start working on the deal.
The rationale is straightforward. Some business brokers reduce their commission in exchange for an upfront retainer fee — this retainer helps offset their costs and ensures the seller is serious. A retainer filters out tire-kickers and gives the broker some capital to invest in valuation analysis, marketing materials, and confidential information memorandum preparation before a single buyer has seen the listing.
The critical distinction in every engagement letter is how the retainer interacts with the success fee at closing. A “fully creditable” retainer means every dollar paid in retainer comes off the success fee at closing. A “partially creditable” retainer credits some percentage, often 50%. A “non-creditable” retainer is pure income to the broker regardless of closing. Always confirm which version applies and write it into the engagement letter.
Most business brokers charge a minimum fee between $10,000 and $25,000 and work on straight commission. A minority of brokers charge an upfront fee, but the more experienced the broker is, the more likely they are to charge upfront fees as a general rule. That is not a coincidence. Experienced brokers have done enough deals to know which clients will stay the course and which will go cold after six months of work — and they price that risk accordingly.
When the fee is actually earned: the legal trigger point
This is where most brokers benefit from reading their own engagement letter very carefully, because the moment at which a commission is legally “earned” is not always the same as the moment it is paid.
The traditional standard in brokerage law is procuring cause — a broker earns the commission when they produce a buyer who is ready, willing, and able to close on terms acceptable to the seller. “Although a broker is generally entitled to a commission when they produce a buyer ready, willing and able to purchase the subject property on terms acceptable to the seller, the broker’s right to a commission may be varied by agreement.”
In practice, most well-drafted business broker engagement letters push that trigger to actual closing. The listing agreement should expressly state that the brokerage fee is only due upon the payment of gross sales proceeds and only if, as, and when a closing occurs and the purchase price is paid in full to the seller. This is better for both sides — it ties the broker’s payout to actual transaction completion rather than to the execution of a purchase agreement that could later fall apart in due diligence.
The practical consequence: if a buyer walks away during due diligence, or if financing collapses, or if a material adverse change surfaces and the seller exercises a right to terminate — no close means no commission, regardless of how far along the deal was. Brokers invest substantial time, money, and resources upfront with no guarantee of payment. That is not a complaint; it is the model. But it means every broker should understand exactly which line in the closing statement triggers the right to draw their fee.
The tail clause: protecting your work after the listing expires
A tail period clause is a contractual provision in business broker agreements that extends the broker’s right to receive a commission for sales finalized after the agreement’s termination, specifying a time frame during which the broker remains entitled to compensation for transactions initiated during the contract term but completed afterward.
Tail period variations typically range from 6 to 24 months, with longer durations potentially discouraging sellers from engaging new brokers. Typical terms often specify a 12-month tail period, balancing protection for the broker with reasonable limits for the seller.
The tail clause protects against a specific scenario every broker has either experienced or heard about: a seller who takes a listing off the market after the engagement expires, then closes a deal six months later with a buyer the broker introduced. Without this provision, sellers could avoid payment by waiting for the listing to expire before finalizing a deal.
The tail’s effectiveness depends on its precision. The listing agreement should require the broker, at the start of the tail period, to provide the seller with a list of names to which the tail applies, thereby avoiding unnecessary potential litigation. A named buyer list removes ambiguity: these are the parties introduced during the engagement, and if any of them close a deal within the tail window, the commission is owed. Without that list, disputes over who counts as an “introduced” buyer are common and expensive.
A situation could arise where a seller is on the hook for two commissions — one to the first broker under the tail clause, and one to the second broker who actually closes the deal. For the broker currently holding the listing, that scenario represents a serious leverage point in negotiations if a seller wants to terminate early. Know your tail language.
Seller financing, earnouts, and deferred consideration: the hard part
Most Main Street deals involve some form of seller financing. Some brokers’ listing agreements state that regardless of the terms, the full commission is owed directly after the sale. Other listing agreements may include provisions that account for large earnouts or seller financing.
This distinction has significant dollar implications. Consider a $2 million deal where the buyer puts down $1.2 million at close and the seller carries a note for $800,000 at 6% over five years. If the engagement letter says the commission is based on the full transaction value of $2 million and is due at closing, the broker receives the full Double Lehman fee at close: $180,000. The seller, however, only received $1.2 million in cash that day. They are effectively funding part of the broker’s fee from the note proceeds they have not yet collected.
The question of whether the commission is based on the maximum potential purchase price — including the cash paid at closing plus an assumed full earnout and full payment under the promissory note — is a critical one that needs to be addressed in the engagement letter.
Earnouts are even more complex. When part of the purchase price is contingent on post-close performance milestones, the final transaction value is genuinely unknown at closing. The Lehman Scale can be instrumental for determining earnout payments — an earnout period is designed to alleviate disparities in valuation perceptions between the buyer and the seller, and is a structured payment plan where a business owner can earn additional compensation based on the future performance of the business they’ve sold. From the broker’s perspective, this means the commission base may grow after closing — but collecting on that growth requires that the engagement letter explicitly ties additional commission to earnout receipts, and that the seller is contractually obligated to notify the broker when those milestones are hit and paid.
Brokers who skip this language in their engagement letters routinely leave money behind on earnout-heavy deals.
Co-brokerage: when a buyer’s broker is in the deal
“Co-brokering” occurs when two brokers work together, one representing the seller and the other representing the buyer — and the success fee, usually given only to the sell-side broker, is split between the two.
The business seller generally pays the broker fees to the sell-side broker. Where there are both sell-side and buy-side brokers, the brokers typically split the sell-side commission between them at no extra cost to the seller.
This is a meaningful structural difference from residential real estate, where cooperative commission splits are standardized across MLS systems. In business brokerage, cooperation is discretionary. If another broker is involved in finding a buyer, the business broker commission fee is split between the listing-side broker and the sell-side broker — that is, if they agree to work together, which not all business brokers do.
Co-brokering, when two brokers work together on a transaction, is not common in the business marketplace. When it does happen, the listing broker’s engagement letter should define whether co-brokerage is permitted, what the split will be, and whether the listing broker retains the right to approve co-brokering arrangements before they are formalized. Without that clarity, a buyer’s broker who was verbally promised a referral cut can become a dispute at the closing table.
The math on a co-brokered deal also matters. On a $3 million sale using Double Lehman — total commission of $240,000 — a 50/50 co-brokerage split leaves the listing broker with $120,000. That is still a meaningful fee, but it changes the economics of the engagement if the listing broker priced their time assuming a full commission.
How the money moves on closing day
Understanding the mechanics of disbursement is where the work of a business sale converts into actual payment in the broker’s account.
In most transactions, the closing attorney or escrow agent serves as the disbursement hub. The escrow agent collects and disburses all closing funds according to escrow instructions. Those instructions, prepared in advance and agreed to by both sides, dictate who gets paid what, in what order, and how quickly. The broker’s commission is a line item on the closing statement — it comes out of the seller’s proceeds and is disbursed directly to the broker at close.
The sequence matters. In a business sale, lien payoffs and secured creditors come before the seller receives net proceeds, and the broker’s commission is typically drawn from those net proceeds. The standard disbursement priority in a business sale runs: business debts and lien payoffs, inventory and equipment liens, license transfer fees, broker commissions, then seller proceeds. If the business has significant secured debt, the broker needs to know the payoff amounts before closing day — a deal that looks like a $1.5 million sale can produce less net proceeds than expected if lien payoffs are larger than anticipated.
The broker’s commission being listed on the settlement statement protects everyone. It creates a documented record of what was paid, to whom, and under what authority. For the seller, it confirms the fee came from proceeds as agreed. For the broker, it creates an arm’s-length paper trail that supports the fee in the event of any post-close dispute.
When multiple parties are owed money out of the same closing proceeds — the listing broker, a co-broker, a franchisor owed royalties, a landlord owed lease-related consideration — the closing statement needs to account for each payee in a single disbursement sequence. Shaka is built precisely for this: a broker who needs to split a commission payment across a listing broker’s wallet, a co-broker’s wallet, and a referral arrangement can set those splits in advance as a payment link, and when the funds clear at close the money lands instantly in each wallet with no manual wire-by-wire coordination, no follow-up calls to the settlement agent, and no waiting days for a check to clear. The broker closes the deal; Shaka handles how the fee lands.
The minimum fee floor: where the percentage stops mattering
The minimum success fee, also called a minimum commission floor, is the dollar amount the broker collects regardless of what the percentage formula produces.
Minimum fees are a protection mechanism for brokers on smaller deals, but they are also a point of frequent seller surprise. A seller who agreed to a 10% commission on a $300,000 business expects a $30,000 fee. If the engagement letter contains a $40,000 minimum, the effective rate is 13.3% — and if the business sells for $250,000 after a price reduction, the minimum produces a 16% effective rate.
The minimum success fee floor is the dollar amount the broker collects regardless of the percentage formula. Main Street minimums run $15,000 to $25,000. Lower-middle-market minimums run $50,000 to $150,000.
The minimum needs to be disclosed and acknowledged in the engagement letter before the listing goes live. It is not a negotiating ambush — it is a legitimate reflection of the real cost of running a deal to close. A $400,000 business sale still requires a CIM, a confidential marketing process, NDA screening, buyer qualification, multiple rounds of negotiation, due diligence management, and closing coordination. That work has a floor cost that a percentage alone does not always capture.
The retainer crediting question and the tax treatment of the fee
One final pair of mechanics worth understanding in full.
On the retainer: whether a retainer is fully creditable, partially creditable, or non-creditable dramatically changes the seller’s net fee at closing and the broker’s effective hourly rate on engagements that do not close. A “fully creditable” retainer means every dollar paid in retainer comes off the success fee at closing. If a broker charges $10,000 upfront and the deal closes at a $250,000 success fee, the seller pays $240,000 at the table. If the retainer is non-creditable, the seller pays $250,000 at close plus the $10,000 already paid — $260,000 total.
Brokers who want their retainer structure to be fully understood and not contested at closing should build it into the engagement letter with explicit language, not leave it to a side conversation that both parties will remember differently six months later.
On tax treatment: broker fees paid by a seller reduce the gain on sale and effectively act as a deduction. Broker fees paid by a buyer are usually capitalized into the basis of the acquired property under IRC Section 263(a). Neither broker nor seller should treat the fee as a surprise at tax time — it is a transaction cost that has meaningful consequences for the seller’s net after-tax proceeds, and a broker who can walk a seller through the basic mechanics of that calculation is demonstrating value that goes well beyond finding a buyer.
What happens when the deal doesn’t close cleanly
A deal does not always close as a single cash payment on a single day. Deals collapse in due diligence. Buyers request price adjustments based on working capital shortfalls at close. Sellers exercise termination rights. Financing falls through at the SBA level.
Selling a business is a long and difficult process — it can take 6 to 12 months, or even longer, depending on the industry and specific business. In that window, a broker who put three months of work into a deal that falls apart in due diligence gets nothing under a pure success-fee model. This is the argument for retainers, and it is why more experienced brokers insist on them.
When a deal does close with complexity — seller financing, earnouts, post-close working capital adjustments, regulatory approval holdbacks — the broker’s commission mechanics need to match that complexity. A broker who is owed a full commission on a $3 million total consideration but only $2 million closes on day one should have language in the engagement letter that is explicit about whether the full fee is due at first close or whether a portion is deferred and tied to receipt of the deferred consideration. Without that language, the broker often collects on the cash portion and then has no contractual basis to pursue the remainder if an earnout milestone is quietly missed.
Business brokerage is a profession built on contingency — years of relationships, months of work, and a commission that exists only if the deal actually closes. Every structure discussed here, from Double Lehman tiers to tail clauses to minimum floors to earnout commission provisions, exists to protect the broker’s ability to collect what they earned. The broker who understands their engagement letter as thoroughly as they understand their CIM is the broker who gets paid in full, without dispute, on the day the keys change hands.
