Deal size is often the biggest factor in how much business brokers charge, but it is not the only one.
On a $75,000 sale, a $15,000 minimum fee turns a 10% commission into 20%. On a $2,000,000 deal, the minimum is irrelevant, but a commission base that includes earnout money can mean paying fees on cash that never arrives.
How much do business brokers charge? This guide breaks down typical broker rates, minimums, and hidden fees. It also shows you how to calculate your effective commission and compare brokers based on net proceeds.
How Much Do Business Brokers Charge?
Business broker commissions commonly fall between 5% and 20% of the final sale price. For businesses selling between $100,000 and $1,000,000 the typical range is at 10% to 15%. Smaller transactions may be subject to a flat minimum fee, while larger deals often use a declining or tiered commission.
Use those ranges as a starting point, not a quote. Your actual cost depends on the broker, deal size, business model, and transaction structure.
| Sale price | Possible fee structure | Main risk to check |
| Under $100,000 | Flat fee or percentage with a minimum | Minimum fee creates a high effective rate |
| $100,000 to $1,000,000 | Often 10% to 15% | Commission base and upfront costs |
| Above $1,000,000 | Tiered or declining percentage | Fees on deferred and non-cash consideration |
| Larger M&A transactions | Retainer plus success fee may apply | Broad transaction value definitions |
These are market benchmarks, not fixed rules. Broker commissions are privately negotiated and should be documented in the engagement agreement.
How a Broker Success Fee Works
A broker’s main compensation is usually a success fee. The seller pays it when the transaction closes.
The broker may handle:
- Positioning and marketing the online business
- Preparing sale materials
- Finding and screening potential buyers
- Coordinating buyer questions and due diligence
- Supporting negotiations
- Helping move the transaction toward closing
The engagement agreement should explain exactly what is included. Do not assume legal work, accounting support, escrow, or technical migration are part of the commission.
The seller generally pays the broker from the sale proceeds. When a buyer has a separate broker, the seller’s broker may share the existing commission through a co-broking arrangement.
Confirm whether the quoted percentage represents the entire commission pool.
Minimum Fees Can Double the Effective Rate
Minimum fees protect the broker when the percentage calculation produces a fee below its required floor.
For the seller, this means the effective commission can be much higher than the advertised rate.
| Sale price | Quoted commission | Percentage fee | Minimum fee | Fee paid | Effective rate |
| $75,000 | 10% | $7,500 | $15,000 | $15,000 | 20% |
| $100,000 | 10% | $10,000 | $15,000 | $15,000 | 15% |
| $150,000 | 10% | $15,000 | $15,000 | $15,000 | 10% |
| $300,000 | 10% | $30,000 | $15,000 | $30,000 | 10% |
Flat commissions of $10,000 or $15,000 are common examples for businesses valued below $100,000. Some brokers serving small businesses use minimum fees in a similar range.
Ask for the minimum before discussing the headline rate. A broker offering 8% with a $15,000 minimum may cost more than one charging 12% without a minimum.
Tiered Commissions on Larger Deals
Larger transactions often use a tiered commission. Different percentages apply to different portions of the sale price.
Empire Flippers provides a clear marketplace example:
- A $10,000 minimum applies below $66,666.67.
- A 15% commission applies up to $700,000.
- An 8% rate applies to the portion between $700,000 and $5,000,000.
- A 2.5% rate applies to the portion above $5,000,000.
The structure is blended. A $1,000,000 sale produces a $129,000 commission:
- 15% of the first $700,000: $105,000
- 8% of the remaining $300,000: $24,000
- Total fee: $129,000
A $7,000,000 sale produces a $499,000 commission, or an effective rate of about 7.1%.
This example shows why sellers should calculate the full fee rather than looking only at the lowest tier.
Published marketplace fees can change. Confirm the current pricing and contract terms directly before choosing a platform.
The Lehman and Double Lehman Formulas
Some M&A advisors use a version of the Lehman formula.
The original formula applies:
- 5% to the first $1,000,000
- 4% to the second $1,000,000
- 3% to the third $1,000,000
- 2% to the fourth $1,000,000
- 1% to the remaining value
Under this formula, the fee on a $3,000,000 transaction is $120,000, or 4%.
A Double Lehman structure commonly doubles those tiers to 10%, 8%, 6%, 4%, and 2%.
However, advisors use several modified versions. Do not assume the name alone tells you how the fee will be calculated. Ask for the formula in dollars at your expected sale price.
Define the Commission Base
The commission percentage is only half of the calculation. The contract must also define the amount to which the percentage applies.
Look for terms such as:
- Transaction value
- Purchase price
- Total consideration
- Enterprise value
- Aggregate consideration
These definitions can include more than the cash you receive at closing.
Inventory
Inventory is often priced separately in e-commerce transactions. Confirm whether the broker charges commission on it.
Paying a success fee on inventory reduces the amount you recover from stock you have already purchased. The agreement should state whether inventory is included, excluded, or included only up to an agreed amount.
Working Capital
Some buyers require a target level of working capital to remain in the business.
Clarify whether cash, receivables, or other working capital left for the buyer forms part of the commission base.
Assumed Debt and Liabilities
A fee based on enterprise value may include debt assumed by the buyer.
This can produce a larger commission than a fee based only on the equity proceeds paid to the seller. Ask the broker to show both calculations before signing.
Seller Financing
A seller note is part of the purchase price, but it is not cash at closing. It also carries repayment risk.
The agreement should state whether commission on the note is due immediately or only as the buyer makes payments.
Equity Rollovers
In some transactions, the seller retains or receives an equity interest in the acquiring company.
Confirm how the broker will value the rollover and whether commission is payable on it at closing.
A practical request is a one-paragraph definition of “transaction value for commission purposes,” followed by a list of included and excluded items.
Broker Fees on Earnouts and Deferred Payments
Earnouts and deferred payments are not the same.
An earnout is contingent. The seller receives the payment only if the business reaches agreed targets after closing.
Deferred consideration is generally a fixed portion of the purchase price paid later. It is not dependent on future performance, although payment still carries collection risk.
A broker agreement may charge commission on the total potential transaction value at closing. This creates a mismatch when part of the seller’s proceeds will arrive later or may never arrive.
Consider a $500,000 transaction with:
- $350,000 paid at closing
- A potential $150,000 earnout
- A 10% broker commission
If the broker charges on the full potential value at closing, the fee is $50,000. That amount comes out of the initial $350,000, even though the seller has not received the earnout.
Two terms need to be negotiated separately:
Calculation: Is the fee based on cash at closing or total potential consideration?
Timing: Is commission due at closing or when the seller receives each payment?
A seller-friendly structure is to pay commission on closing cash at closing, then pay the remaining commission only as deferred or contingent proceeds are received.
The broker may reject this structure or propose a different rate on deferred amounts. The important point is to settle the calculation before the engagement agreement is signed.
Upfront Fees, Retainers, and Add-On Costs
Not every broker operates on a pure success-fee model.
Possible additional charges include:
- Engagement or onboarding fees
- Monthly retainers
- Valuation fees
- Sale memorandum preparation
- Marketing packages
- Buyer outreach campaigns
- Legal document preparation
- Escrow or payment-processing fees
- Technical transfer support
Some brokers charge an upfront fee, which may be credited against the success fee when the transaction closes. Upfront fees are also more common in larger transactions.
The credit matters.
A $5,000 engagement fee credited against a $40,000 success fee changes payment timing but not the total broker cost. An uncredited $5,000 fee raises the total cost to $45,000.
Ask for a written answer to these questions:
- Is the fee refundable?
- Is it credited against the success fee?
- What specific work does it cover?
- What happens if the broker does not launch the listing?
- Does the broker continue charging after you terminate?
Avoid paying for vaguely defined marketing or advisory packages. The contract should list the deliverables, timing, and responsible party.
Tail Clauses and Post-Termination Fees
Ending a broker agreement may not end your obligation to pay commission.
A tail clause allows the broker to claim a fee when a buyer introduced during the engagement closes after the agreement ends.
The clause can be reasonable. A seller should not be able to terminate the broker and immediately close with a buyer the broker sourced.
The risk comes from broad wording.
Check:
- How long the tail lasts
- What counts as an introduction
- Whether the buyer must have signed an NDA or submitted an offer
- Whether the broker must provide a written prospect list
- Whether the clause applies to the buyer’s affiliates
- Whether the tail ends if another broker is hired
Avoid accepting a definition of “introduced” broad enough to include anyone who viewed a public listing or appeared in the broker’s database.
Ask the broker to provide a final written list of protected buyers when the agreement ends. Only buyers on that list should remain subject to the tail.
Exclusivity and Buyers You Find Yourself
An exclusive-right-to-sell agreement may require you to pay the commission regardless of who finds the buyer.
This can include:
- A competitor who contacts you directly
- An existing employee
- A current investor
- A supplier or commercial partner
- A buyer you were already speaking with
List existing prospects before signing. Ask for a written exclusion covering those names and their affiliates.
Also check whether the agreement prevents you from listing on another marketplace or hiring another broker.
Exclusivity can be reasonable when the broker is investing time and money into the sale, but the agreement should include a clear end date and termination process.
Cancellation and Offer-Rejection Clauses
Some agreements include a fee if the seller:
- Withdraws the business after accepting an offer
- Refuses to cooperate with due diligence
- Provides inaccurate information
- Rejects an offer meeting predefined terms
- Sells outside the broker process
- Breaches exclusivity
Some protections are reasonable. A broker should not spend months on a transaction only for the seller to bypass the agreement.
The problem is vague language. A clause based on an “acceptable,” “qualified,” or “full-price” offer can create a dispute when the price matches but the payment terms, earnout, financing, warranties, or transition requirements do not.
An asking-price offer is not automatically a good offer.
Define any fee-triggering offer by its complete terms, including:
- Cash paid at closing
- Financing conditions
- Earnout requirements
- Seller note amount
- Working capital requirements
- Transition period
- Representations and warranties
- Non-compete terms
Have an attorney review the engagement agreement when the fee exposure or contract language is material.
How to Negotiate Broker Fees
Negotiation should focus on the complete economic structure, not only the percentage.
A lower rate can be offset by a higher minimum, an upfront fee, or a broader commission base.
Prioritize these terms:
- The Minimum Fee
Calculate the effective rate at your low, expected, and high sale prices. - The Commission Base
List every component included in transaction value. Exclude items the broker should not be paid on. - Payment Timing
Match commission payments to the timing of your proceeds where possible. - Existing-Buyer Carve-Outs
Exclude prospects you developed before hiring the broker. - The Tail Clause
Limit the duration and require a named list of protected buyers. - Upfront Fee Credits
Confirm whether retainers and engagement fees reduce the success fee. - Scope of Work
Document who handles buyer screening, due diligence coordination, legal documents, escrow, and migration. - Performance Incentives
A broker may accept a higher commission on proceeds above an agreed threshold in exchange for a lower base rate.
Use care with this structure. The incentive should be based on completed consideration, not an inflated asking price or contingent payment.
How to Calculate Your Total Broker Cost
Model the sale before signing the engagement agreement.
Step 1: Estimate Three Sale Prices
Create low, expected, and high scenarios.
Use likely closing prices, not only your target asking price.
Step 2: Apply the Commission Formula
Calculate each tier separately when the broker uses a blended structure.
Step 3: Apply the Minimum
Compare the calculated commission with the minimum fee. Use the higher number.
Step 4: Add Non-Creditable Fees
Add engagement fees, retainers, listing fees, and paid marketing packages that do not reduce the success fee.
Step 5: Separate Cash and Deferred Proceeds
Split the purchase price into:
- Cash at closing
- Seller financing
- Fixed deferred payments
- Earnouts
- Equity rollovers
Step 6: Model Payment Timing
Determine how much commission is payable at closing and how much becomes payable later.
Step 7: Add Other Selling Costs
Include legal, accounting, escrow, tax advice, and migration expenses.
Treat third-party cost estimates as general benchmarks, not quotes. The amount depends on the transaction’s size and complexity.
Step 8: Calculate Net Proceeds
Use:
Net proceeds = sale proceeds received – broker fees – other transaction costs – applicable taxes
Do not use the asking price in this calculation. Use the amount you realistically expect to receive under each scenario.
Example Net Proceeds Calculation
Assume an online business sells for $300,000.
| Item | Amount |
| Sale price | $300,000 |
| Cash at closing | $250,000 |
| Seller note | $50,000 |
| Broker commission at 10% | $30,000 |
| Upfront fee credited against commission | $3,000 |
| Remaining commission at closing | $27,000 |
| Legal, escrow, and accounting costs | $8,000 |
| Cash remaining at closing before taxes | $215,000 |
This calculation assumes the full commission is based on the $300,000 purchase price.
If the buyer defaults on the $50,000 seller note, the seller still paid $5,000 of commission on proceeds not collected. A payment-as-received structure would reduce this risk.
10 Questions to Ask Before Signing
- What is the exact commission formula?
Ask for the fee at 3 specific sale prices. - What is the minimum fee?
Calculate the effective rate in your lowest sale scenario. - How do you define transaction value?
Check inventory, working capital, debt, seller notes, earnouts, and equity. - When is commission due on deferred proceeds?
Ask whether you pay at closing or when each payment arrives. - Are upfront fees credited against the success fee?
Get the answer in writing. - What services are included?
Confirm buyer screening, due diligence support, legal documents, escrow, and migration. - Do I pay if I find the buyer?
Add exclusions for existing contacts. - How does the tail clause work?
Require a time limit and named prospect list. - What happens if I reject an offer?
Review any cancellation or fee-trigger language. - Is the engagement exclusive?
Check the term, renewal provisions, and termination process.
Frequently Asked Questions
Can You Negotiate a Business Broker’s Commission?
Yes. Broker commissions are privately negotiated.
You may have more room to negotiate when the business has clean financials, a realistic asking price, low owner dependence, and a straightforward transfer process.
Focus on the total cost. Reducing the percentage is not helpful if the broker raises the minimum fee or adds a non-creditable retainer.
Do You Pay a Broker If You Find the Buyer?
It depends on the engagement agreement.
An exclusive-right-to-sell agreement may require payment regardless of who found the buyer. Sellers with existing prospects should identify them before signing and request written exclusions.
Do You Owe Commission If the Deal Does Not Close?
A pure success fee is generally payable only when a transaction closes.
However, the agreement may contain separate cancellation, withdrawal, or breach fees. It may also define events other than closing as a fee trigger.
Read those provisions rather than relying on the term “success fee.”
Who Pays the Buyer’s Broker?
In a co-broked transaction, the seller’s broker may share its commission with the buyer’s broker. The seller should not assume a second fee applies.
Confirm whether the quoted commission is the total pool and whether the broker permits co-broking.
Is Selling Without a Broker Cheaper?
Selling without a broker avoids the broker’s success fee, but it does not eliminate legal, escrow, accounting, or transfer costs.
It also means the seller is responsible for preparing the listing, screening buyers, managing due diligence, negotiating terms, and coordinating closing.
Compare the routes based on expected net proceeds, workload, and execution risk.
Investors Club offers a DIY marketplace option with no listing commission, success fee, or exclusivity. The DIY option does not include legal documents, escrow, or migration assistance. Those services are available through a separate paid full-service option.
The Bottom Line
Do not choose a broker based on the headline percentage.
Model the fee in dollars and read the engagement agreement closely. The minimum fee, commission base, payment timing, exclusivity, and tail clause determine what you may owe.
The best comparison is not “10% versus 12%.”
It is the net amount you expect to receive after the transaction closes and all obligations are paid.
