Most sellers pay a success fee of 8% to 12% of the sale price, but the headline rate is only half the story. Retainers, minimum fees, tail periods, and how the fee is calculated can swing your net proceeds by six figures. Here is the full picture, in full dollars.
10% - 12%
Typical Under $1,000,000
8% - 10%
$1,000,000 - $5,000,000
2% - 6%
Effective Above $5,000,000
$10,000+
Common Minimum Fee
When sellers ask how much a business broker costs, they usually mean the commission. But engagement letters typically combine up to four different fee types, and two brokers quoting the same rate can cost you very different amounts:
A percentage of the sale price, paid at closing. This is where business broker commission rates live: typically 10% to 12% on main-street deals and tiered formulas on larger ones. If the business does not sell, a pure success fee costs you nothing.
Monthly fees of $2,000 to $10,000 are common at M&A firms, sometimes more. Ask whether the retainer is credited against the success fee at closing. If it is not, you are paying twice for the same work.
Many brokers set a minimum of $10,000 to $25,000 regardless of price. On a $150,000 sale, a $15,000 minimum is an effective rate of 10%. On a $60,000 sale, it is 25%. Always do the math at your likely price, not the asking price.
Charges of $2,000 to $25,000 for preparing the confidential information memorandum, valuation work, listing placements, and buyer outreach. Some firms bundle this into the success fee; others bill it upfront and keep it even if the deal never happens.
A pure success-fee broker earns nothing until you get paid, which keeps their incentives pointed at an actual closing rather than a long engagement.
Retainer-based firms argue the monthly fee filters out unserious sellers and funds real work. That can be true, but it shifts risk from the broker to you.
The only number that matters at the end is your net: sale price minus every fee, not the rate printed on page one of the engagement letter.
Want the incentive side of the story? How Do Business Brokers Make Money breaks down where each fee type comes from and what it does to broker behavior.
Business broker commission rates fall as deal size rises, because the work does not scale with the price. These are widely published market ranges, and individual firms vary:
Typically 10% to 12% flat, with minimum fees of $10,000 to $25,000. Most restaurants, service businesses, and small retail sales live here. The minimum fee often matters more than the rate.
Typically 8% to 10% flat, or a tiered schedule that starts around 10% and steps down. This is the zone where Double Lehman formulas and flat rates compete, so it pays to run both calculations on your expected price.
Lehman-style scales dominate, producing effective rates of roughly 3% to 6%. Retainers become standard at many firms, typically $5,000 to $15,000 per month, and engagement letters get longer and more negotiable.
Success fees of roughly 1% to 4% with meaningful retainers and sometimes a reverse-tiered structure that pays the banker a higher percentage on price above an agreed target. Most sellers here run a formal auction process.
Above roughly $5,000,000 you are usually choosing between a broker and an M&A advisor, which is a different service model, not just a different rate. Business Broker vs M&A Advisor covers how to tell which one your deal needs.
The Lehman scale is the granddaddy of tiered fee formulas: 5% of the first $1,000,000 of the sale price, 4% of the second, 3% of the third, 2% of the fourth, and 1% of everything above $4,000,000. It dates back decades, and because deal costs have risen since then, most firms that quote "Lehman" today actually mean the Double Lehman: 10%, 8%, 6%, 4%, then 2%.
For comparison, the classic single Lehman on the same $3,500,000 sale comes to $130,000, an effective rate of about 3.7%. Same formula family, double the fee, which is why you should never accept "we use the Lehman scale" without seeing the exact percentages written into the engagement letter and running them against your expected price.
Tiered scales reward closing at all, not closing high: the broker earns the richest percentage on the first dollars, not the last ones. Some firms flip this with a reverse Lehman that pays a higher rate above a target price, which better aligns the broker with stretching your number.
Always ask what the fee applies to. A scale applied to "total consideration" can include assumed debt, real estate, seller notes, and earnouts, not just cash at closing.
BridgeBook publishes its own tiered schedule: 10% on the first $1,000,000, sliding down to 3% on everything above $7,000,000, as a pure success fee with no retainers and no upfront fees.
Run the math on your own business
The free BridgeBook valuation calculator gives you a price range in about 5 minutes, so every fee formula in this article becomes a real dollar figure instead of a percentage. Requesting the full report also locks a $1,000 exit credit toward the success fee if BridgeBook later sells your business.
The commission is on page one. These items hide in the definitions and the fine print, and each one is a fair question to ask any broker before you sign:
The broker fee is usually the largest single cost of selling, but it is not the only one. Here is what a typical $2,000,000 sale looks like on the seller side of the closing statement, before taxes and any loan payoffs:
Two things follow from this math. First, a one-point difference in the commission rate on this deal is $20,000, real money, but smaller than the swing you get from deal structure, taxes, or a modest difference in the final price. Second, the fee base matters as much as the rate: if $400,000 of that $2,000,000 were a seller note and the engagement letter charged the full fee on total consideration at closing, you would be writing a $40,000 fee check against money that arrives over the next five years.
When you compare brokers, build this table for each one using their actual fee schedule and your realistic price. The broker with the lowest rate does not always produce the biggest bottom line, which brings us to the next point.
A fee is a price for a process, and processes differ. A broker who runs broad, confidential buyer outreach and creates real competition for your business tends to produce better prices and better terms than a listing that sits on one website waiting for a call. Illustrative math, using the same business with two different processes:
In this illustration the seller pays nearly double the fee and still walks away with $198,000 more. The numbers are hypothetical, but the mechanism is not: buyer competition, careful qualification, and skilled deal management move the price and the terms, and those swings dwarf a few points of commission. The right question is never "who charges the least" but "who will produce the highest net, after everything."
One caution in the other direction: do not pick a broker just because they quoted you the highest valuation, either. A price opinion is not a fee term, and a flattering number that never attracts an offer nets you exactly nothing. Ask every broker to defend their recommended price with comparable sales and a clear thesis about who buys your business and why.
The engagement letter is a contract, and almost everything in it is negotiable before you sign. The structure is usually easier to move than the headline rate, and it often matters more:
Have a deal attorney read the letter before you sign. It is a few hundred dollars against a six-figure fee, and a good broker will walk you through every clause without flinching. If a broker gets defensive about their own engagement letter, that is useful information too.
For transparency, here is the BridgeBook fee model, founder-led by Legend Atty, in the same terms this article uses for everyone else:
Most business brokers charge a success fee of 10% to 12% on sales under $1,000,000, and 8% to 10% on deals between $1,000,000 and $5,000,000. Above $5,000,000, tiered structures like the Lehman scale typically bring the effective rate down to 2% to 6%. Many brokers also charge minimum fees, and some add retainers or marketing fees on top.
The Lehman scale is a tiered fee formula: 5% of the first $1,000,000 of the sale price, 4% of the second, 3% of the third, 2% of the fourth, and 1% of everything above $4,000,000. Most brokers today use the Double Lehman variant (10%, 8%, 6%, 4%, 2%), which produces a fee of $260,000 on a $3,500,000 sale, an effective rate of about 7.4%.
Some do. M&A advisors commonly charge monthly retainers of $2,000 to $10,000, and some main-street brokers charge upfront marketing or valuation packaging fees of $2,000 to $25,000. Others, including BridgeBook, work on a success-fee-only basis: no retainers and no upfront fees, so the broker is paid only when your business actually sells.
Yes, and the structure is usually more negotiable than the headline rate. Sellers routinely negotiate the tail period, the exclusivity term, minimum fees, whether retainers are credited against the success fee, carve-outs for buyers they sourced themselves, and whether the fee on seller notes and earnouts is due at closing or when the money is actually received.
In most small business sales, the seller pays the broker out of the sale proceeds at closing. If two brokers cooperate on a deal, they typically split one commission rather than charging both sides. Separate buy-side brokers exist, but they are paid by the buyers who hire them and do not add to your fee as a seller.
Every fee formula in this article is just a percentage until you know what your business is worth. Get a free, confidential valuation in about 5 minutes, then compare brokers on your actual net.
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