A clear engagement letter helps set the tone for a smooth transaction. One of its most important sections outlines broker fees, which define how a business broker or financial advisor is compensated for brokerage services. These terms shape expectations, ensuring both parties understand their roles and responsibilities.
In an M&A (Mergers and Acquisitions) engagement letter, the fee structure explains how and when the broker is compensated, and which services fall within that scope. Without these details, miscommunication can delay or disrupt a deal. Clear language about expenses, transaction fees, and compensation supports transparency and cooperation.
Well-structured fee arrangements help reduce confusion and promote fairness. Knowing how broker fees in an engagement letter are organized—when they’re paid, how they’re structured, and what clauses matter—helps business owners and brokers proceed with mutual understanding.
What Are Broker Fees in an Engagement Letter?
Broker fees describe how a broker is compensated for helping complete a transaction. These fees establish clear expectations in every engagement agreement, defining what work is covered and how payment is managed.
Plain English definition
In simple terms, broker fees are payments a business owner agrees to make to a broker for assisting with the sale or purchase of a business or property. The engagement letter outlines the fee arrangements, timelines, and any expenses covered on the client’s behalf. This document helps all parties understand how compensation is determined when the deal concludes.
Why they’re included in every agreement
Including a fee section in engagement letters gives both sides a written framework to reference. The agreement specifies each party’s obligations, defines the scope of services, and limits confusion about payment after the transaction closes. Without it, either side may misunderstand what is owed or when it becomes due.
How broker fees impact your final sale
Research by Nadel (2006) found that traditional commission-based fee structures in real estate transactions often remain tied to the sale price rather than the level of service provided, creating potential inefficiencies and inflated costs. Applying these findings to broader brokerage services suggests that a transparent fee structure, defined in advance, can help sellers and brokers better align expectations and negotiate fairer terms based on actual work performed rather than fixed percentage formulas.

Common Types of Broker Fee Structures
The engagement letter should explain which fee structure applies so each company or property owner knows how much will be paid and under what conditions.
Commission-based fees (percentage of sale price)
Many business brokers and investment bankers use a commission-based model. They earn a percentage of the sale price once the transaction closes. This structure ties payment to the outcome of the deal, aligning the broker’s and seller’s goals.
Flat fees for specific services
Some brokers charge a flat amount for defined services, such as preparing valuations, creating marketing materials, or screening buyers. This approach provides predictable costs but may not reflect the complexity of certain transactions. The agreement should state which tasks are covered by the flat fee.
Hybrid models combining both
A hybrid model combines a smaller upfront flat fee with a commission at closing. This structure helps offset early marketing or administrative expenses while maintaining performance-based compensation. Many engagement agreements use this blend to balance risk and reward.
When and How Broker Fees Are Paid
The engagement agreement should state exactly when broker fees become due and which events trigger payment. Clear timing and triggers protect both parties and keep the process predictable.
Typical payment timing (e.g., at closing)
In most deals, fees are paid at closing when funds are released and the transaction is finalized. Some engagement letters also allow limited milestone payments, such as at a signed letter of intent or after due diligence. This mirrors contingency-style arrangements where compensation is tied to a successful outcome, rather than time spent, which research has documented in adjacent fee contexts (Kritzer, 2002).

Triggers that make fees due
Knowing what events trigger payment keeps expectations clear between broker and client.
- Fees may be due when the broker introduces a buyer or tenant who completes a sale, lease, or related transaction.
- The agreement specifies payment after the broker fulfills agreed services and the deal is completed.
- A tail provision may allow payment if a deal closes within a defined tail period following termination.
- Some fee arrangements call for payment at specific stages, such as completing due diligence or signing a letter of intent.
- Documented triggers help align compensation with verified milestones recognized by both parties.
Sample payment clause example
A concise payment clause defines the transaction fee, timing, and exceptions in plain language to avoid misinterpretation.
- State the commission rate, for example, “6% of the final sale price, payable at closing.”
- Explain what happens if the engagement is terminated, including whether the broker still receives payment for buyers introduced during the term.
- Include a tail provision that sets how long after termination the broker may still qualify for payment, such as 60 days.
- Note any reimbursable expenses covered on the client’s behalf.
- Keep terms brief and specific to reduce ambiguity.

Tips for Writing a Clear Fee Clause
A well-written broker fees engagement letter should spell out exactly how compensation is calculated and when it’s due. Clear terms help both the broker and client stay aligned, reducing the chance of disputes and keeping the transaction process transparent and efficient.
Spell out percentages or flat amounts
Include the exact commission or flat fee amount in the engagement letter so that both sides understand the payment terms. Avoid general language like “customary rate,” as specific figures create transparency and minimize misinterpretation.
Include timing and conditions
State when payments will be made and what events or milestones trigger them. Adding these details builds accountability and ensures that the broker’s compensation reflects completed and agreed-upon services.
Keep language simple and specific
Use straightforward language that is easy for all parties to understand. Avoid unnecessary legal jargon so the document remains clear, accessible, and enforceable if reviewed later.
Why Fee Transparency Helps Both Sides
Open discussion of broker fees builds accountability and cooperation. When payment details are explicit, both broker and client can focus on completing the transaction effectively.
Avoids disputes or confusion later
Transparent fee arrangements reduce the likelihood of disagreements once the deal closes. Putting every term in writing helps both parties verify expectations and protect their interests if questions arise later.
Builds trust with your broker
Open communication about compensation fosters mutual respect and stronger collaboration. When both sides understand the agreed-upon terms, it reinforces professionalism and keeps the working relationship productive and positive.
Ensures fair compensation for real work
Detailed fee structures show how the broker’s efforts are valued and compensated. This clarity assures the broker that legitimate work will be rewarded while giving clients confidence that fees match the actual services provided.

Write Fair and Clear Fee Terms from the Start
A strong broker fees engagement letter protects both sides by setting out exactly how, when, and why payments occur. Well-defined terms on fee structure, payment triggers, and tail provisions help prevent disputes and keep each party accountable throughout the transaction. Clear language ensures the broker’s compensation reflects agreed services, while the client knows what to expect before closing. When the engagement agreement prioritizes transparency, both broker and business owner can move forward with confidence, knowing the deal rests on fairness, professionalism, and mutual understanding.
Frequently Asked Questions
What is a typical broker fee for selling a business?
Broker fees in an engagement letter often range from 5% to 15% of the sale price, depending on the company’s size and transaction details.
Are broker fees negotiable in an engagement letter?
Yes. Fee arrangements can usually be negotiated so that both the business owner and broker agree on terms fitting the scope of services.
When are broker fees usually paid?
They are commonly paid at closing, although some engagement agreements allow milestone payments for defined services.
What’s the difference between commission and flat fees?
Commission fees are a percentage of the sale price, while flat fees are fixed payments tied to specific brokerage services.
Should broker fees be outlined in detail in the agreement?
Yes. Every engagement letter should clearly outline fees, payment timing, and related conditions to promote transparency between all parties.
References
- Kritzer, H. M. (2002). Seven dogged myths concerning contingency fees. Washington University Law Quarterly, 80(3), 739–794. https://openscholarship.wustl.edu/law_lawreview/vol80/iss3/4
- Nadel, M. S. (2006, October 3). A critical assessment of the standard, traditional residential real estate broker commission rate structure. Social Science Research Network. https://doi.org/10.2139/ssrn.942348