| In This Article: How sell-side advisors are typically compensated, why the fee structure matters as much as the fee amount, and what questions every business owner should ask before signing an engagement letter. |
The Question Business Owners Should Be Asking
Sellers evaluating M&A advisors tend to focus on cost: the retainer amount, the success fee percentage, and whether there are additional charges. The more consequential question is whether the fee structure creates genuine alignment between the advisor’s incentives and the seller’s goals.
An advisor whose compensation depends almost entirely on closing a transaction will approach certain decisions differently than one whose fee is more predictable. That shows up in how urgently they respond when a buyer delays, how hard they push when an offer falls short, and whether they are willing to recommend pausing a process when the circumstances call for it.
When Incentive and Alignment Diverge
Incentive misalignment shows up most clearly when a process goes wrong. If offers come in below expectations and the better path is to pause and run a new process, will the advisor say so? An advisor paid entirely on closing has a financial reason not to recommend that, even when it is the right call. That conflict does not require bad faith. It is structural.
The same dynamic plays out in smaller decisions throughout a process: moving to exclusivity before competitive tension has fully developed, accepting a buyer’s initial position on a negotiated term rather than pushing back, discouraging a seller from re-engaging another buyer when the lead deal shows early strain. At each of those moments, an advisor focused on closing has a financial reason to choose speed over a better outcome.
The Retainer: What It Covers and What It Signals
A retainer is a payment made to the advisor at the start of the engagement, either as a single upfront amount or as a recurring monthly fee. It funds work that must happen before a buyer is ever contacted: financial analysis and normalization, deal positioning, preparation of the Confidential Information Memorandum, buyer list construction, and structuring work specific to the seller’s situation.
The retainer is sometimes described as a deposit. That framing understates what it covers. For most advisory firms, the cost of the preparation phase exceeds the retainer amount.
An advisor who waives the retainer entirely may be doing so to win a competitive mandate. They are also signaling something about priorities. A firm running multiple no-retainer engagements simultaneously will not staff all of them the same way.
The Success Fee: How It’s Calculated and Why the Percentage Varies
The success fee is the most economically significant component of an M&A advisory engagement. It is calculated as a percentage of total transaction value and paid at closing. Because the advisor receives it only if the transaction closes, the structure ties the advisor’s financial outcome directly to the seller’s.
Success fee percentages vary with deal size. In the lower middle market, fees on transactions below $20 million typically run between 4 and 6 percent, and deals between $20 million and $50 million often fall between 3 and 5 percent. Above $50 million, fees generally compress further. Some firms apply minimum floors regardless of deal size.
The reason smaller deals carry higher percentages is that the work does not compress proportionally with enterprise value. A $15 million deal and a $60 million deal require comparable effort across preparation, outreach, and process management. Middle-market sellers should benchmark their quoted fee against transactions of similar size. Fee norms from large-cap M&A do not apply.
Some advisors build tiered incentive provisions into the success fee. In practice, this might look like a base fee of 4 percent on transaction value up to a defined threshold, stepping up to a substantially higher percentage on any value above it. Sellers should ask whether any tiered provisions exist, how the thresholds are set, what triggers each tier, and whether the tier applies to the full transaction value or only to the incremental amount above the threshold.
Questions to Ask Before You Sign
Before signing an engagement letter, sellers should ask:
- If offers come in below expectations, would you recommend continuing, pausing, or running a new process? What happens to your fee in each scenario?
- If I receive two offers at similar headline prices but with substantially different terms, does your fee change based on which I choose?
- What happens to fees if the process pauses, terminates, or runs significantly longer than expected?
- How is transaction value defined for purposes of calculating the success fee?
An advisor who won’t answer these questions in writing is telling you something.
For sellers 12 to 24 months from a transaction, that timeline is worth raising at the start. Work that affects valuation and process control takes months to do properly. These include EBITDA normalization, owner compensation adjustments, timing decisions on capital expenditures. Starting earlier creates options that starting six months out does not.
Talk to Roadmap Advisors About How This Works
At Roadmap Advisors, we discuss fee structure directly at the start of every engagement. Our compensation is structured around the outcome of the transaction, and we walk through how each component works before any agreement is signed.
If you want to understand what working with an M&A advisor costs and how the fee structure aligns with your priorities, we are glad to walk through it. Questions about our fees are expected and welcome.