Business Broker Fees in 2026: Full Breakdown of Lehman, Modified Lehman, and Hidden Costs - CT Acquisitions

Business Broker Fees in 2026: Full Breakdown of Lehman, Modified Lehman, and Hidden Costs

Business broker fees 2026 Lehman Modified Lehman breakdown

Business broker fees in 2026 typically run 8 to 12 percent of sale price on Main Street deals under $1M, 6 to 10 percent on lower-middle-market deals between $1M and $5M, and 3 to 8 percent blended on mid-market deals above $5M, with most brokers using some variant of the Lehman, Modified Lehman, or Double Lehman formula and almost all charging a minimum success fee floor that can quietly push the effective rate above 15 percent on smaller transactions. Owners who only ask “what is the percentage” walk into engagement agreements with retainers, marketing reimbursements, tail clauses, expense pass-throughs, and minimum fee floors that can add 20 to 40 percent on top of the headline rate. This guide breaks down every fee line item, every formula, and every clause that actually moves the number on your closing statement.

The numbers in this guide are pulled from the IBBA and M&A Source Market Pulse quarterly survey, the Pepperdine Private Capital Markets Report, public engagement letter samples from Venable LLP and attorney Aaron Hall, and 2026 commission disclosures from major brokerages and M&A firms. Every fee model, formula, and clause referenced below is sourced and linked.

Business Broker Fees in 2026: The Three Fee Models

Almost every sell-side engagement in 2026 uses one of three success fee models: flat percentage, Lehman formula, or Modified Lehman (often called Double Lehman). The model your broker picks is not random. It tracks deal size, broker overhead, and how much work the broker thinks a deal will absorb relative to revenue. Get the model wrong for your deal size and you either overpay by tens of thousands of dollars or scare away the only brokers who would have actually closed it.

The flat percentage model dominates Main Street transactions under $1M. The Lehman formula in its original 5-4-3-2-1 form is mostly retired but still appears on some lower-middle-market engagements. The Modified Lehman, also marketed as Double Lehman or 10-8-6-4-2, has become the default for deals between $1M and $10M because it scales fee dollars with broker workload in a way the original 1960s Lehman scale never did.

According to the MidStreet pricing guide, the choice of model often hinges on the broker’s deal flow. A broker who closes four to six deals per year cannot afford a 1 percent marginal rate on the top tier of a $4M deal because the absolute fee will not cover the months of work. That is why the same broker who quotes 10 percent flat on a $400K deal will quote Double Lehman on a $3M deal: the dollar floor matters more than the headline percentage.

The IBBA and M&A Source Q4 2025 Market Pulse survey reported that only 34 percent of intermediary firms raised broker fees in 2025, down from 47 percent the prior year, but the headline blended fee bands have held steady through 2026. The Q3 2025 Market Pulse release also confirmed the same pattern: broker fee structures are stable, deal volumes are recovering, and intermediaries are reluctant to push rate increases through in a market where buyers have more negotiating power than they did at the 2021 peak.

Model 1: Flat Percentage Success Fee (8 to 12 Percent for Sub-$1M Deals)

The flat percentage success fee is the simplest broker fees structure and the one most Main Street sellers actually sign. You agree on one number, say 10 percent, and that number is multiplied by the total transaction value at closing. There are no tiers, no breakpoints, and no math to argue about at the closing table.

Standard flat rates in 2026:

  • Businesses under $250K: 12 to 15 percent, almost always with a minimum fee floor of $15K to $25K
  • Businesses $250K to $500K: 10 to 12 percent
  • Businesses $500K to $1M: 8 to 10 percent
  • Businesses $1M to $2M (when flat rates persist into this band): 7 to 9 percent

The Small Business Expo industry guide reports that 10 percent is the modal flat rate on Main Street deals in 2026, with about 60 percent of sub-$1M engagements falling between 9 and 11 percent. The Synergy Business Brokers fee guide reports a similar 10 to 12 percent band for Main Street.

Publicly disclosed flat-rate brokerages include Sunbelt Business Brokers (the largest franchise broker network in North America), Murphy Business, Transworld Business Advisors, and First Choice Business Brokers. Most franchise offices quote 10 to 12 percent on deals under $1M with a $15K to $20K minimum, though individual offices set their own rates and franchise rate cards are not standardized.

Flat rate engagements typically include the brokerage’s marketing spend (listing on BizBuySell, BusinessesForSale, BizQuest, the broker’s own website, and the IBBA Find-A-Broker directory), buyer prequalification, confidential business review preparation, and closing coordination. They typically do not include legal, accounting, escrow, or third-party valuation fees, which are billed separately and are not part of the broker fee itself.

One subtle point on flat-rate broker fees: the calculation base matters more than the percentage. A 10 percent flat broker fee applied to “total transaction value” can pull in inventory, accounts receivable, working capital, real property leasehold improvements, and seller financing notes. The same 10 percent applied to “purchase price net of inventory and assumed liabilities” can produce a fee 15 to 25 percent lower on inventory-heavy businesses. On a $1.2M retail deal with $300K of inventory, the difference is $30K. Always read the success fee base definition carefully and confirm in writing which line items count.

Model 2: Lehman Formula (5-4-3-2-1 Tiered)

The original Lehman formula was created by Lehman Brothers in the 1960s as a tiered investment banking fee structure for capital raises. The full schedule is:

  • 5 percent on the first $1M of transaction value
  • 4 percent on the second $1M
  • 3 percent on the third $1M
  • 2 percent on the fourth $1M
  • 1 percent on everything above $4M

On a $10M sale, the standard Lehman fee is $50K plus $40K plus $30K plus $20K plus 1 percent of $6M, which equals $200K total. That is a 2.0 percent blended rate.

According to Wikipedia’s Lehman Formula entry and the Venture First explainer, the original Lehman scale is now considered too low for sell-side M&A in most deal bands because broker workload has not dropped proportionally with deal value. A $10M deal still requires the same buyer outreach, due diligence support, and closing coordination as a $5M deal, but the original Lehman rewards the broker with less than 2 percent blended. That math no longer works for most intermediaries.

You will still see straight Lehman on three kinds of engagements in 2026: legacy law firm referral arrangements, capital raises (where the Lehman scale was originally designed), and very large deals above $50M where a 1 percent top-tier marginal fee still produces seven figures of compensation. The Corporate Finance Institute and Exit Promise both treat straight Lehman as a historical baseline rather than a current default.

For Main Street and lower-middle-market deals, straight Lehman has been almost entirely replaced by Modified Lehman or Double Lehman variants. When a 2026 sell-side engagement letter cites “Lehman formula” without qualification, the broker almost always means Modified Lehman. Always read the actual percentages and breakpoints written into the broker fee schedule rather than relying on the named formula. A broker who quotes “the standard Lehman scale” and then writes 10-8-6-4-2 into the engagement letter is using Double Lehman, not the original 5-4-3-2-1.

Model 3: Modified Lehman / Double Lehman (10-8-6-4-2 for Mid-Market)

The Modified Lehman formula, more commonly called Double Lehman, doubles every tier of the original Lehman scale:

  • 10 percent on the first $1M of transaction value
  • 8 percent on the second $1M
  • 6 percent on the third $1M
  • 4 percent on the fourth $1M
  • 2 percent on everything above $4M

Double Lehman is now the default fee structure for lower-middle-market broker engagements between $1M and $10M, according to the MidStreet Double Lehman breakdown, Brentwood Growth’s Lehman Formula explainer, and Auxo Capital Advisors’ Modified Lehman guide. MergersCorp publishes a full Double Lehman PDF reference sheet that brokers hand to sellers in initial meetings.

Brokers favor Double Lehman over flat percentage on deals above $1M because it front-loads compensation. A $2M deal at Double Lehman pays $180K in success fees (10 percent of the first $1M plus 8 percent of the second), versus $160K at a flat 8 percent. As deal size scales, the blended rate falls below the flat alternative, which gives sellers cost relief on the upside without starving the broker on the downside.

Some brokers use a true Modified Lehman with custom breakpoints rather than the standard Double Lehman doubling. Common variants include 12-10-8-6-4-2 for sub-$1M heavy deals, 8-6-4-2 for deals starting above $2M, and 10-8-6-4-2-1 with a sixth tier for deals expected to exceed $10M. The Rejigg M&A success fee calculator and Lehman Scale Calculator can model these variants directly.

Variants like the Stuttering Lehman (each percentage applies up to a tier rather than only within it) and reverse Lehman (low percentages on small deals, higher on big ones, used for capital raises) exist but are rare in sell-side business brokerage. The Stuttering Lehman produces meaningfully higher broker fees on every tier because the higher percentage applies to the entire transaction value below that tier, not just the slice within it. A $3M deal at Stuttering Lehman pays 6 percent on the full $3M ($180K) rather than the layered Double Lehman result of $240K, but only because the Stuttering interpretation picks the top-tier rate that applies. Most brokers do not use this method on sell-side mandates because it is harder to explain to sellers and produces fee outcomes that vary dramatically with small changes in deal size.

Worked Example: $500K SDE Main-Street Deal Broker Fees

Take a single-owner HVAC business with $500K of seller’s discretionary earnings, a Main Street valuation multiple of 2.8x SDE, and an expected sale price of $1.4M. Here is what broker fees look like across the three models.

Flat percentage (10 percent): The success fee is $140K. The minimum fee floor of $20K does not trigger because the success fee exceeds it. The broker bills no retainer. Total broker fees: $140K, a blended rate of 10.0 percent.

Straight Lehman (5-4-3-2-1): 5 percent on $1M ($50K) plus 4 percent on $400K ($16K) = $66K. That is a blended 4.7 percent. Almost no broker will accept this on a sub-$2M deal in 2026.

Double Lehman (10-8-6-4-2): 10 percent on $1M ($100K) plus 8 percent on $400K ($32K) = $132K. Blended 9.4 percent. Close enough to the flat 10 percent that most owners pick whichever the broker offers.

If the deal also includes $200K of inventory and the engagement letter applies the fee to total enterprise value rather than purchase price net of inventory, the flat 10 percent fee becomes $160K instead of $140K. Always check whether inventory, working capital pegs, and seller notes are included in the success fee calculation base. The Divestopedia definition of transaction value shows how brokers can stretch the base by including holdbacks and earnouts.

Worked Example: $2M EBITDA Lower-Middle-Market Broker Fees

Now consider a commercial roofing business with $2M of adjusted EBITDA, a lower-middle-market multiple of 4.5x EBITDA, and a target sale price of $9M.

Flat percentage (5 percent): A flat 5 percent on $9M is $450K. Few brokers accept flat rates this high on deals approaching $10M because the math becomes punitive to the seller.

Straight Lehman: 5 percent on $1M + 4 percent on $1M + 3 percent on $1M + 2 percent on $1M + 1 percent on $5M = $190K. Blended 2.1 percent. Far too low to attract a competent broker.

Double Lehman: 10 percent on $1M ($100K) + 8 percent on $1M ($80K) + 6 percent on $1M ($60K) + 4 percent on $1M ($40K) + 2 percent on $5M ($100K) = $380K. Blended 4.2 percent. This is the standard fee structure for a $9M deal in 2026 and matches the Brentwood Growth benchmark range.

Add a typical $5K monthly retainer for 6 months ($30K) creditable against the success fee. Add 18 months of tail and 1.5 percent of total proceeds in expense reimbursement (about $14K on a deal this size). Total broker cost: roughly $380K to $410K, or 4.2 to 4.6 percent of enterprise value. That maps to the M&A Source Market Pulse reported blended range of 4 to 6 percent for lower-middle-market sell-side engagements.

Worked Example: $10M EBITDA Mid-Market Modified Lehman

Step up to a regional industrial services platform with $10M EBITDA, a 7x multiple, and an enterprise value of $70M. At this size, the engagement is no longer a Main Street business brokerage. The seller is now hiring an M&A advisory firm or a boutique investment bank, and the fee structure shifts.

Modified Lehman with a higher floor (commonly 2 percent flat on first $10M, 1.5 percent above): $200K on the first $10M plus 1.5 percent on $60M ($900K) = $1.1M. Blended 1.57 percent.

Double Lehman extended: $100K + $80K + $60K + $40K + 2 percent on $66M ($1.32M) = $1.6M. Blended 2.3 percent.

Flat percentage success fee at 2 percent: $1.4M flat. Blended 2.0 percent. Common on capital-raise deals but rare in sell-side mid-market.

At this deal size, retainers grow to $15K to $25K per month for 6 to 12 months and minimum success fees of $750K to $1M are standard. Some boutiques add a “step-up” clause: every $1M of enterprise value above an agreed target adds 5 to 10 percent to the success fee. The Chinook Capital summary of the 2025 Pepperdine Report documents 1 to 3 percent blended success fees as the mid-market standard.

The Retainer Question (When Brokers Charge It)

A retainer is a non-contingent fee paid up front or monthly that the broker keeps regardless of whether the deal closes. Retainers exist for two reasons: to keep the broker compensated for work even on deals that fail, and to filter out unserious sellers who would tie up the broker’s time without ever closing. Retainer-based broker fees also help align cash flow on engagements that may take 9 to 12 months to close, when the broker is funding pitch books, buyer calls, and market research months before any success fee arrives.

Retainer norms in 2026:

  • Main Street deals under $1M: usually no retainer, or a one-time work fee of $2K to $5K for the confidential business review and valuation
  • Lower-middle-market $1M to $5M: monthly retainers of $3K to $8K for 6 to 12 months, almost always 100 percent creditable against the success fee at closing
  • Lower-middle-market $5M to $25M: monthly retainers of $8K to $15K, partially creditable
  • Mid-market $25M+: monthly retainers of $15K to $50K, often only partially creditable or non-refundable up to a cap

The Q4 2025 IBBA and M&A Source Market Pulse data show advisors moving away from one-time retainers toward monthly or milestone-based engagement fees. This shift reduces broker risk when deal timelines stretch and gives sellers a more predictable cost picture quarter to quarter.

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 percent. 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.

Minimum Success Fee Floors (And Why They Hurt Small Deals)

The minimum success fee, also called a minimum commission floor, is the dollar amount the broker collects regardless of what the percentage formula produces. Almost every 2026 sell-side engagement letter contains one.

Typical minimum success fees:

  • Main Street brokerages: $15K to $25K minimum on any closed deal
  • Lower-middle-market brokerages: $50K to $100K minimum
  • M&A advisory firms: $150K to $500K minimum
  • Boutique investment banks: $750K to $1.5M minimum

The minimum floor matters because it turns the headline percentage into a fiction on smaller deals. A 10 percent success fee with a $25K minimum applied to a $150K sale price equals $25K, which is a 16.7 percent effective rate. The Hedgestone broker pricing guide documents Main Street minimums in the $10K to $25K range, and the Website Closers pricing breakdown confirms the same band for digital business brokers.

If your business is valued in the $100K to $300K band, ask three brokers for their minimum fee in writing before signing anything. Two of them will be willing to drop the minimum if asked. The third will not, and that broker is signaling that your deal is too small for their workflow.

A second-order effect of minimum success fees: they distort how small-business broker fees are quoted. A brokerage with a $20K floor that quotes 10 percent on a $150K deal is really quoting a 13.3 percent effective rate. The same brokerage quoting the same headline rate on a $400K deal collects $40K, which is 10 percent flat with no floor effect. Owners comparing two brokers on percentage alone often pick the wrong one because the minimum fee floor does not show up until the closing statement. Always do the math on your specific expected deal size with the floor included.

The Tail Period: Fees Owed After You Terminate

The tail period, also called a tail clause or post-termination commission window, is the time window after your engagement agreement ends during which the broker can still claim a commission if a deal closes with a buyer the broker introduced. This clause exists for a real reason: brokers spend months running outreach campaigns, and sellers occasionally try to wait out the engagement, terminate, and close directly with a buyer the broker found.

Standard tail clauses in 2026:

  • Main Street brokerages: 12 months, buyer must be on a written introduction list
  • Lower-middle-market brokerages: 18 months, broker maintains a documented buyer list
  • M&A advisory firms: 24 months, sometimes 36 months on very large deals
  • Investment banks: 24 to 36 months, written buyer list attached to engagement letter

According to the New York State Bar Association analysis of investment banking tail fees and attorney Aaron Hall’s broker tail clause guide, the two most important tail clause negotiation points are buyer scope and notice. A “broad” tail covers any deal closed in the window, regardless of who introduced the buyer. A “narrow” tail covers only deals with buyers on a written introduction list delivered within 30 days of termination. Always negotiate for a narrow tail with a written list.

The Venable LLP engagement letter primer, Law Insider’s tail period sample clauses, and the ContractKen tail clause glossary all walk through specific language. Cooley, Wilson Sonsini, and Goodwin engagement letter templates used in venture-backed exits typically cap tail periods at 12 to 18 months and require a written buyer list to trigger payment, which is a stricter standard than most Main Street brokers will offer voluntarily.

Hidden Costs Owners Miss (Expense Reimbursement, Marketing Fees, Buyer-Side Fees)

The headline success fee is rarely the full broker cost. The line items below appear in most engagement letters and add 5 to 20 percent to the total broker bill.

Expense reimbursement. Travel, due diligence support, courier, document hosting, and legal coordination expenses billed at cost or with a small markup. Typical range: 0.5 to 2 percent of transaction value, often capped at $25K to $50K on Main Street deals and uncapped on mid-market engagements.

Marketing or listing fees. Some brokers bill a separate fee for premium listings on BizBuySell, BusinessesForSale.com, BizQuest, and industry-specific platforms. Range: $500 to $5K, sometimes wrapped into the retainer and sometimes billed separately.

Confidential business review (CBR) or pitch book preparation. Charged on M&A advisory engagements, typically $5K to $25K on lower-middle-market deals and $25K to $100K on mid-market deals. Usually creditable against the success fee at closing.

Valuation or Broker Opinion of Value (BOV). A $2K to $10K standalone fee for the broker’s preliminary valuation, almost always applied against the success fee if the engagement converts to a sell-side mandate.

Data room hosting. Most brokers pass through the cost of Ansarada, Intralinks, Firmex, or Dropbox Business at $1K to $10K depending on deal size and number of bidders.

Buyer-side fees. A small minority of brokers also collect a separate fee from the buyer, typically 1 to 3 percent of transaction value. This is most common with franchise brokerages and creates a real conflict of interest. The Unbroker breakdown of who pays the broker covers the dual-agency issue in detail.

Legal coordination fees. Some brokers bill an additional hourly rate ($300 to $500 per hour) for closing coordination work, on top of your separate transaction attorney’s bill.

From a tax standpoint, broker fees paid by the seller are generally treated as selling costs that reduce the gain on sale under the Tax Adviser’s analysis of transaction cost treatment and the RSM US tax alert on M&A transaction costs. The Treasury Regulations under IRC 263(a) require that certain success-based fees be capitalized into the basis of the property acquired, but the IRS safe harbor under Rev. Proc. 2011-29 allows taxpayers to elect to treat 70 percent of success-based fees as non-facilitative (and therefore deductible) with the remaining 30 percent capitalized. Always confirm treatment with your CPA before closing.

Business Broker Fees vs M&A Advisor Fees vs Investment Bank Fees

The terms “business broker,” “M&A advisor,” and “investment banker” are often used interchangeably by sellers but mean very different things to the people who run those firms and to the deal bands they cover.

Business brokers. Main Street focused, generally on businesses with under $2M of enterprise value. Often hold a real estate broker license under state rules (more on that below). Use flat percentage or Double Lehman fee structures. Examples: Sunbelt Business Brokers, Murphy Business, Transworld Business Advisors, First Choice Business Brokers.

M&A advisors. Lower-middle-market focused, businesses with $2M to $50M of enterprise value. Usually require a FINRA Series 79 license if dealing with securities. Use Modified Lehman with retainers and minimums. Members of the M&A Source trade association.

Investment banks. Mid-market and upper-mid-market, businesses with $50M to $500M of enterprise value. Always FINRA-registered broker dealers. Use Modified Lehman or flat percentage success fees with substantial retainers, expense pass-throughs, and minimum success fees of $1M+. Boutique examples in the lower-end of this band include Houlihan Lokey’s Financial Sponsors group, Lincoln International’s middle-market practice, William Blair, and Harris Williams.

Per the 2025 Pepperdine Private Capital Markets Report, blended advisor fees compress as you climb deal bands. The same study published by Pepperdine’s Craig R. Everett shows business brokers averaging 6 to 10 percent blended on sub-$2M deals, M&A advisors at 3 to 6 percent on $2M to $50M deals, and investment banks at 1 to 3 percent on deals above $50M. These bands are stable across the last decade of survey data.

State licensing rules also differ. According to the Business Brokerage Press state licensing reference and the American Business Brokers list of license-required states, business brokers in California, Florida, Nevada, Oregon, Arizona, Georgia, Idaho, Minnesota, Wisconsin, and Utah must hold a real estate broker license to handle business sales involving leased premises or transferred real property. Texas, Illinois, New York, and most other states have no separate broker license for business-only transactions. License-state brokers also pay state real estate commission license renewal fees of $100 to $700 annually, which feeds into their fee floors.

When Negotiating Fees Down Costs You Net Proceeds

The standard advice in every “how to sell my business” article is to negotiate the broker’s fee down by 1 or 2 percentage points. That advice is wrong about half the time.

A broker who agrees to a steep fee cut has three options. They can absorb the lower fee and lose money on your deal, which means they will assign their junior staff to it and shop it to the first reasonable buyer who walks in. They can spend less time marketing, which shrinks your buyer pool and almost always reduces sale price. Or they can do exactly what they would have done at full fee, which is what most owners hope for but few brokers actually deliver.

Academic research on broker compensation supports this. Hayes, McCarthy, and Wright’s Journal of Finance analysis of intermediary compensation and Rhodes-Kropf and Robinson’s NBER working paper on advisor incentives both show that higher contingent fees produce stronger broker effort, more bidder solicitation, and meaningfully higher sale prices on smaller deals where signaling and trust matter most. The net proceeds curve does not move linearly with fee rate.

A more productive negotiation focuses on five other levers:

  1. The minimum fee floor. Worth $5K to $20K on Main Street deals.
  2. The retainer crediting percentage. Push from 50 percent creditable to 100 percent creditable.
  3. The tail period and buyer list scope. Negotiate down from 24 to 12 months with a written list requirement.
  4. The success fee base. Carve out inventory, working capital pegs, seller notes, and earnouts.
  5. Expense cap. Cap reimbursable expenses at 1 percent of transaction value or a dollar figure, whichever is lower.

These five negotiation points are worth more dollars on most deals than 1 or 2 percentage points off the headline rate and they do not damage broker incentives.

Owners also routinely underestimate the cost of broker selection itself. Picking a low-fee broker who closes 60 percent of mandates rather than a higher-fee broker who closes 85 percent of mandates often costs more in expected proceeds than the entire broker fee spread. The probability-weighted math almost always favors the broker with higher close rates, even at a 1 to 2 percentage point higher fee. The Business Valuation Resources summary of the Pepperdine 2025 report documents the close-rate spread across broker tiers and shows why the lowest broker fee on the market is rarely the right choice for a one-time sale.

How CT Acquisitions Structures Engagement Fees

CT Acquisitions runs a transparent flat-rate engagement model: zero retainer, zero upfront fee, success-based only, with the success fee disclosed in writing before any due diligence or marketing work begins. Our fee schedule is fixed at signing and includes the confidential business review, buyer outreach, deal negotiation support, and closing coordination. We do not bill marketing fees, valuation fees, or data room hosting fees separately, and we do not collect buyer-side compensation, which keeps incentives aligned with the seller.

Owners considering CT Acquisitions versus a traditional brokerage should also read our companion guides on how much brokers charge to sell a business, how to pick the best business broker, and when to hire a broker to sell your business. For deeper context on M&A advisory selection, our M&A advisory firm selection guide and business brokerage services guide walk through firm comparisons in detail. Vetting frameworks are covered in our broker vetting guide and advisor selection guide. For the full owner-side strategy, see our 2026 owner playbook.

If you are at the point where you want a written fee quote and timeline for your specific business, the fastest path is to book a call directly. We will give you a fee number in writing before you commit to anything.

Business Broker Fees: Frequently Asked Questions

What is the average business broker fee in 2026?

Average business broker fees in 2026 are 10 percent flat on deals under $1M, 6 to 9 percent blended on deals between $1M and $5M, and 3 to 5 percent blended on deals between $5M and $25M. The blended broker fee compresses as deal size grows because the percentage tiers in Modified Lehman and Double Lehman drop sharply above the first $4M. Above $25M, fees compress to 1 to 3 percent blended. These bands come from the IBBA and M&A Source Q4 2025 Market Pulse and match the Pepperdine 2025 Private Capital Markets Report.

How does the Double Lehman formula work?

The Double Lehman formula charges 10 percent on the first $1M of transaction value, 8 percent on the second, 6 percent on the third, 4 percent on the fourth, and 2 percent on everything above $4M. It is the most common broker fee model for lower-middle-market deals in 2026.

Do business brokers charge a retainer?

Most Main Street business brokers do not charge a retainer. Lower-middle-market brokers and M&A advisors charge $3K to $15K per month for 6 to 12 months, almost always creditable against the success fee at closing. Mid-market boutiques charge $15K to $50K per month.

What is a minimum success fee floor?

A minimum success fee floor is the dollar amount the broker collects regardless of the percentage formula. Main Street minimums run $15K to $25K. Lower-middle-market minimums run $50K to $150K. Mid-market boutique minimums run $750K to $1.5M.

What is a tail period in a broker engagement?

The tail period is the window after your broker engagement ends during which the broker can still claim a commission if a deal closes with a buyer they introduced. Typical tail periods are 12 to 24 months. Always negotiate for a written buyer introduction list to limit the tail scope.

Are business broker fees tax deductible?

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). The IRS safe harbor under Rev. Proc. 2011-29 allows taxpayers to elect to treat 70 percent of success-based fees as non-facilitative and deductible. Always confirm with a CPA.

Do business brokers need a license?

Business broker licensing depends on state. California, Florida, Nevada, Oregon, Arizona, Georgia, Idaho, Minnesota, Wisconsin, and Utah require a real estate broker license when the sale involves leased premises or transferred property. Texas, Illinois, New York, and most other states have no separate business broker license. FINRA Series 79 registration is required for securities-based M&A advisory work.

What is the difference between a business broker and an M&A advisor?

Business brokers focus on Main Street deals under $2M and typically charge flat percentage or Double Lehman fees. M&A advisors focus on lower-middle-market deals from $2M to $50M, hold securities licenses, and charge Modified Lehman fees with retainers. Investment bankers focus on deals above $50M and charge much lower blended percentages with high minimum fee floors.

Can I negotiate broker fees?

Yes, but focus on the minimum fee floor, retainer crediting percentage, tail period scope, success fee calculation base, and expense cap rather than the headline percentage. These five levers usually move more dollars than a 1 or 2 percentage point rate cut and do not damage broker incentives to maximize sale price.

What hidden costs do business brokers charge?

The most common hidden broker costs are expense reimbursement (0.5 to 2 percent of deal value), marketing or listing fees, confidential business review preparation fees, valuation fees, data room hosting fees, buyer-side fees, and hourly legal coordination fees. Always require a written fee schedule that lists every line item before signing the engagement letter.

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