"What Business Brokers Charge, and What's Actually Negotiable"

Broker fee agreements are not long, but they contain more moving parts than the headline percentage suggests. Understanding those parts before you sign is worth the hour it takes.

The Success Fee: The Core Number

Business brokers earn the bulk of their compensation as a success fee, a commission paid only when the deal closes. There is no sale, no fee. This alignment of incentives is one of the better features of the broker model.

For Main Street businesses (roughly $500,000 to $2 million in enterprise value), the standard success fee is 10%, sometimes 8% to 12% depending on deal complexity. On a $1 million sale, 10% produces a $100,000 fee. For businesses in the $2 million to $5 million range, flat percentages are still common, typically dropping toward 8%. Above $5 million, most advisors shift to a tiered formula.

The IBBA Market Pulse Survey reports success fees as the dominant form of broker compensation for businesses under $5 million in value.

The Lehman Formula and Its Variants

The Lehman formula originated at Lehman Brothers as a way to calculate advisory fees on large transactions. Two variants are common in business sales today.

Standard Lehman (5-4-3-2-1): 5% of the first $1 million of sale price, 4% of the second, 3% of the third, 2% of the fourth, 1% on everything above.

Double Lehman (10-8-6-4-2): 10% of the first $1 million, 8% of the second, 6% of the third, 4% of the fourth, 2% above $4 million. This is the version most commonly used on deals between $2 million and $10 million.

Here is what those formulas actually produce in dollars:

Sale Price	Flat 10%	Double Lehman	Standard Lehman
$1,000,000	$100,000	$100,000	$50,000
$2,000,000	$200,000	$180,000	$90,000
$3,000,000	$300,000	$240,000	$120,000
$5,000,000	$500,000	$300,000	$150,000
$8,000,000	$800,000	$360,000	N/A (typically replaced)

At $1 million, flat 10% and Double Lehman produce the same fee. Above that, Double Lehman runs lower. At $5 million, Double Lehman produces $300,000, an effective rate of 6%. Sellers on deals above $2 million should understand which formula applies before signing.

According to Axial's M&A Fee Guide (with Firmex and Divestopedia), 44% of mid-market advisors use the Lehman formula, with the remainder using flat percentages or, increasingly, accelerator structures.

Retainers: When They Apply and Whether They Should Be Credited

A retainer is a fee paid at the start of the engagement, either as a lump sum or monthly. It covers the broker's upfront work and signals that the seller is serious. Whether it is reasonable depends on the deal size and, more than anything, whether it is credited.

Under $1 million: Retainers are uncommon. Some brokers charge a small work fee of $2,000 to $5,000 for the valuation and marketing materials. Reasonable.

$1 million to $5 million: Monthly retainers of $3,000 to $8,000 for six to twelve months. These should be fully credited against the success fee at closing. You pay the retainer during the process, then it comes off the commission when the deal closes. You do not pay it twice.

$5 million to $25 million: Monthly retainers of $8,000 to $15,000, often 50% to 100% credited.

The word "credited" matters. Ask directly: "Is the retainer fully credited, partially credited, or non-refundable?" Get the answer in writing. According to Axial's M&A Fee Guide (with Firmex and Divestopedia), 35% of advisors use a one-time fixed retainer credited against the success fee, 36% use a monthly or milestone-based model, and 24% charge no retainer at all.

Minimum Fees: When They Bite

Most agreements include a minimum fee clause: "10% of sale price or $25,000, whichever is greater." Typical ranges are $15,000 to $25,000 for Main Street brokers, $25,000 to $50,000 for the lower middle market, and $50,000 to $150,000 for M&A advisory firms.

Minimum fees are legitimate. A broker spending six months on a $500,000 deal does roughly the same work as on a $1.5 million deal, and the commission math does not cover that work without a floor.

The problem arises when the minimum functions as a termination penalty, money due if you cancel regardless of whether a buyer was found. A legitimate minimum fee is payable only at closing, from sale proceeds. If your agreement says otherwise, push back before you sign.

Expense Pass-Throughs

Some agreements include separate expense reimbursement for travel, data room fees, and advertising. These are sometimes bundled into the success fee and sometimes billed on top of it. Ask: "What expenses are billed separately, and what is the cap?" Reasonable pass-throughs on a $3 million deal might total $10,000 to $20,000. Push for a dollar ceiling if no cap is stated.

The Engagement Term and the Tail Clause

The engagement term is how long the broker has to sell your business, typically 6 to 12 months.

The tail clause is what matters more. It says: if the business sells within a set period after the agreement ends to a buyer the broker introduced, the broker still earns a commission. The purpose is legitimate. A broker may spend months cultivating a buyer, you terminate, and then close privately. The tail protects against that.

Standard tail periods, according to CT Acquisitions' 2026 broker fee analysis:

• Main Street brokers: 12 months
• Lower-middle-market brokers: 12 to 18 months
• M&A advisory firms: 18 to 24 months

Most sellers do not read the tail clause carefully, and it can matter more than the percentage.

Two things to negotiate here:

Buyer scope. A broad tail covers any buyer who closes in the window, whether or not the broker introduced them. A narrow tail covers only buyers the broker can document they approached. Push for the narrow version. The broker should produce a written list of buyers within 30 days of the agreement ending.

Duration. Twelve months is defensible for a Main Street listing. Anything beyond 18 months on a smaller deal warrants pushback.

The Inflated Asking Price Problem

Some brokers win listing agreements by telling sellers what they want to hear about value. A business that should list at $1.5 million gets listed at $2.2 million. The broker gets the engagement. Six months later, there are no offers. The price drops. The qualified buyers who saw the original number at launch have moved on and rarely come back.

Businesses listed at the right price sell for about 94% of asking price on average, according to BizBuySell's 2025 data. Businesses listed too high sit, acquire a reputation for having hidden problems, and typically sell for less than a realistic list would have produced.

Ask any broker: "Walk me through how you arrived at that number." A solid answer covers specific comparable transactions, the likely buyer type, and what could compress the multiple. Vague enthusiasm about your business's potential is a warning sign.

If three brokers give you three meaningfully different valuations, the highest one is most likely a pitch, not an analysis.

What Is Genuinely Negotiable

The headline percentage is harder to move than most sellers expect. A broker who cuts their commission deeply may have less motivation to push for the last dollar of price. That said, several things are worth negotiating:

Reasonable to push on:

• Retainer crediting (push from 50% credited to 100% credited)
• Minimum fee amount, if the deal size makes it disproportionate
• Tail period length (from 18 months to 12, from 24 to 18)
• Tail buyer scope (narrow it to documented introductions with a written list)
• Expense cap (get a ceiling in dollars)
• Engagement term length (shorter initial term with an option to extend)

Unlikely to move:

• The core percentage (10% on Main Street is market)
• The existence of a minimum fee (push on the amount and trigger, not the concept itself)
• Exclusivity (nearly all agreements are exclusive; this is standard and reasonable)

Questions to Ask Before You Sign

Write these down and bring them to every broker meeting:

1. Is the retainer fully credited against the success fee at closing, and does that credit appear explicitly in the engagement letter?
2. What triggers the minimum fee, and is it payable only upon a successful closing?
3. What expenses are billed separately, and what is the cap?
4. What is the tail period, and does it apply only to buyers documented by name at termination?
5. What is the engagement term, and what are the conditions for early termination?
6. Walk me through how you arrived at your valuation. What would cause a buyer to pay less?
7. How many active engagements does the person managing my deal currently carry?

The answers to these questions will tell you more about whether a broker is the right fit than anything on their website.