If you are getting ready to sell a company in London, Ontario, or you are hunting for a solid small business for sale London owners are quietly floating, the broker’s fee is one of the first real numbers that slaps you in the face. You hear 10 percent tossed around. A friend says he paid a retainer and did not see much action. Another owner swears by a success-only plan that still cost her more than she expected because of a minimum fee. The fine print matters, and the way brokers in this market price their work has more structure than it looks at first glance.
I have seen owners anchor to a single percentage, only to learn later that minimums, marketing budgets, and tail periods control the final cheque. I have also seen buyers assume the seller pays everything, then sign a buyer’s mandate with its own fee schedule. The better you understand the moving parts, the cleaner your deal and the calmer your process.
What a London, Ontario business broker actually does
Most business brokers London Ontario sellers work with cover a lot of ground. They package your company for market, set a price range, build a confidential information memorandum, and screen buyers to protect trade secrets and staff morale. They run a discrete process, manage offers, coordinate diligence, and keep accountants and lawyers talking. In London specifically, there is a steady mix of owner-operator businesses under 1 million in value, professional practices, and light industrial companies that often sit between 1 million and 5 million. That blend influences fee expectations because the workload to sell a 700,000 machine shop can be just as heavy as a 3 million services firm.
On the buy side, a broker can represent you under a buyer mandate, especially if you want an off market business for sale that never hits a listing site. That can help when you want to buy a business in London Ontario, but do not want to bid in a crowd. It is also how many serious acquirers find real companies for sale London owners are open to discussing quietly.
You will see a mix of local independents and national brands competing for mandates. You may come across names like Sunset Business Brokers, Liquid Sunset Business Brokers, and other boutiques when you search for businesses for sale London Ontario or companies for sale London. Do not choose on brand recognition alone. Compare the actual team handling your file, their sector experience, and how they structure fees for your type of deal.
The fee models, in plain language
Different brokers settle on different blends of success fees, retainers, and expenses. Stripped to the studs, here is how it usually breaks down in southern Ontario.
- Success fee: A percentage of the purchase price, paid only when the deal closes. Rates often land between 8 and 12 percent for deals under 1 million, then step down in tiers as value climbs. Many brokers use a modified Lehman formula to handle tiers. A minimum fee often applies. Retainer: A monthly or upfront amount to engage the broker, typically 2,000 to 7,500 per month, capped at 3 to 6 months, sometimes creditable against the success fee. Minimum fee: A floor the broker expects for a full mandate. In this market, minimums tend to sit between 25,000 and 60,000. It prevents a broker from working months on a micro deal that would otherwise pay too little. Expenses and marketing: Two lanes here. Either a simple monthly marketing budget, say 500 to 1,500, or an all-in that the broker bakes into the retainer and does not bill separately. It covers ads on listing sites, data room tools, copywriting, and design. Hourly or consulting: Less common for full sell-side mandates, but used for valuation-only work, pre-sale cleanups, or buyer advisory. Hourly rates often sit between 150 and 350, sometimes paired with a small success bonus if you ask the same broker to help with negotiations.
Expect HST on all broker fees and retainers, and on reimbursed expenses if they are not pure pass-through items. That 13 percent is not a small afterthought when you are looking at a 40,000 minimum or a 100,000 success fee.
Why the percentage changes with deal size
Small deals are oddly complex. Confidentiality is fragile, buyers are mostly first timers, and documentation is a heavier lift because the business rarely has a pristine data room ready. The broker earns their fee babysitting the process and protecting value while you keep the doors open.
For that reason, percentage rates on a 400,000 to 900,000 sale are typically higher. I regularly see 10 percent as the headline, with a 30,000 to 40,000 minimum fee. Cross 1 million, and the effective rate trends down, using a tiered system so the first slice of value pays a higher percentage and the upper slices pay a lower one.
Here is a simple illustration of a tiered success fee some London firms use for small to mid-size deals:
| Consideration Tier | Fee Percentage | | --- | --- | | First 1,000,000 | 10% | | Next 1,000,000 | 8% | | Next 3,000,000 | 6% | | Above 5,000,000 | 4% | | Minimum Fee | 35,000 to 60,000 |
Plug in a 2.5 million sale price. The calculation would be 10 percent on the first 1 million, 8 percent on the second 1 million, and 6 percent on the final 500,000. That totals 10,0000 + 80,000 + 30,000, or 210,000 in fees before HST. Change the price to 600,000 with a 10 percent headline and a 40,000 minimum, and you pay 60,000, which clears the minimum. Drop to a 300,000 sale and that same minimum controls the outcome, because 10 percent would only be 30,000 otherwise.
Not every broker shares the math in exactly this format. Some quote a single percentage and then state a minimum. Others state a retainer that will be credited against the Watch here eventual success fee, but not refunded if no sale occurs. The economic effect is often the same.
Real numbers from everyday London deals
A cafe on Richmond sells for 420,000, mostly assets, with a small vendor take-back. The broker charged 10 percent, a 35,000 minimum, and a 1,000 monthly marketing budget for three months. The success fee came to 42,000, marketing added 3,000, and HST applied to both. The owner had budgeted 40,000 all in and ended up closer to 51,000.
A HVAC contractor near the 401 traded at 2.1 million, all cash at close. The fee used a tiered schedule that worked out to an effective rate near 9.7 percent. No retainer, but a 45,000 minimum that did not matter at that size. The seller cleared more than expected because the broker brought in two strategic buyers who bid against each other.
A dental practice listed at 1.3 million agreed to a 2,500 monthly retainer for four months, creditable against a success fee set at 9 percent with a 50,000 minimum. The deal took six months to close due to landlord consent. The seller paid 10,000 in retainer, credited towards a 117,000 success fee at close. The minimum fee was irrelevant, but the retainer kept the broker engaged through a long approval cycle.
If you are exploring a small business for sale London Ontario buyers routinely circle, plan for these economics even if the headline percentage looks simple. It reduces sticker shock and helps you pick a structure that matches your timeline and risk tolerance.
Retainers, explained without spin
Owners push back on retainers because they feel like paying before results. Brokers argue they need upfront bandwidth for valuation, packaging, and buyer outreach. Both are true. The middle ground is clarity.
A fair retainer in this market usually covers the first wave of heavy lifting over 60 to 120 days. That includes preparing the CIM, drafting the blind profile, tightening add-backs in your normalized EBITDA, and setting up a secure data room. If you pay a retainer, confirm in writing whether it is credited against the success fee, and whether it sunsets after a certain period. Creditability is common, refunds are rare.
When a broker runs an all-in success-only model, pay attention to the minimum fee and the term of exclusivity. The minimum and the tail period, taken together, can function like a deferred retainer if the business does not sell during the initial mandate but closes with a buyer introduced during the process.
Minimum fees and why they matter more than the percentage
Minimums are easy to skim past, then regret. A 30,000 to 60,000 minimum is not unusual for a full sell-side mandate in London. If you think your business might fetch 250,000 to 400,000, the minimum will likely govern what you pay, not the percentage. In that case, the real question is whether the broker’s marketing plan and buyer network are worth that minimum to you.
On the buy side, a buyer’s agent may secure a lower headline percentage with a similar minimum. For example, a 4 percent success fee to represent you when you want to buy a business in London, Ontario can look light until you notice the 35,000 floor. If you end up purchasing a 500,000 business for sale London Ontario owners have listed widely, you will still pay that floor.
Who pays the broker, seller or buyer
Most sell-side mandates in southwestern Ontario are paid by the seller. Listing sites for business for sale in London Ontario often mark listings where the buyer pays a fee, but that remains the minority. However, serious acquirers, including owner-operators and small funds, sometimes hire a broker under a buyer mandate to go off market. In that case, the buyer pays.
If you are a buyer, be aware that an advertised business for sale in London may have a success fee already priced into the seller’s expectations. Do not assume you can avoid fees if you try to go direct. Ethical brokers maintain a buyer registry and claim their fee even if you reach out to the seller after seeing a blind ad. Better to work with the process than against it.
Off market deals and finder fees
London is still a town where a lot of good businesses change hands quietly. A broker or M&A advisor may approach owners directly and put together off market conversations with NDAs in place. The economics vary. You might see a lower percentage paired with a research retainer. Or you might see a straightforward finder fee if the broker only made the introduction and you negotiated yourself.
If you are approached about an off market business for sale that fits your target, ask who is paying whom, and when. If you are the seller, insist that any finder fee includes at least light qualification of buyers. A name on a napkin is not worth 2 to 3 percent. A warm introduction to a capitalized buyer with sector appetite is.
Exclusivity, tails, and the time dimension of fees
Almost every engagement includes an exclusivity period when you cannot retain another broker on the same mandate. In London, six to nine months is common for small businesses, and nine to twelve months if the broker is targeting strategic buyers that move slowly.


Then comes the tail period. If the broker introduces a buyer during the mandate, and you close with that buyer within, say, 12 months after the mandate ends, the success fee still applies. This is reasonable, but the length, the definition of an introduced buyer, and the carve-outs deserve attention.
Once in a while, I see a tail that is longer than the exclusivity term. For most owner-run businesses, a 12-month tail is common, 18 months is acceptable if strategic buyers are involved, and anything beyond that should be justified case by case.
The few lines worth negotiating
You do not need to grind every number on the page. Focus on the terms that swing real money or flexibility.
- Exclusivity length and tail: Shorten exclusivity if the broker wants a retainer, or shorten the tail if exclusivity is long. Keep the tail tied to named buyers the broker introduced. Minimum fee and credit: If you accept a monthly retainer, push for that to credit 100 percent against the success fee and, where possible, to reduce the minimum dollar for dollar. Definition of success: Clarify whether working capital adjustments or assumed liabilities affect the fee base. State that the fee is calculated on enterprise value actually received at closing. Expense caps: Set a monthly cap for marketing expenses if they are pass-throughs. Ask to approve any single expense over a set amount. Carve-outs: If there are buyers you have already engaged or vendors who have a right of first refusal, carve them out clearly, with a shorter tail.
Red flags that signal a fee problem later
A broker who refuses to show the full fee calculation in writing is a risk. So is a very low headline percentage with no minimum spelled out, because the minimum will appear later in an addendum. Watch for a tail period that applies to any buyer who ever saw a listing, not just those the broker actually introduced to you. Be cautious with high retainers that are not credited toward success. And if the engagement says the broker gets paid on any transaction involving the company, including debt refinancing or minority investments, narrow that scope.
How fees meet value in the London market
The best defense of a fee is results. In London, a well-run process can add 10 to 30 percent to the final price, especially for businesses between 1 million and 5 million that draw interest from both owner-operators and small strategics. That spread comes from positioning, reach, and disciplined negotiation. On a 2 million sale, even a 150,000 to 200,000 fee pays for itself if the broker prevents a 300,000 price erosion in diligence or finds a second bidder.
On very small deals, say under 300,000, fees feel heavy. If your cafe, ecommerce shop, or kiosk nets less than 100,000 a year, you may not want a full mandate. Consider a lighter-weight brokerage package with a slimmer buyer pool, or sell to a manager and spend money on a lawyer and accountant rather than a full broker. There is no one right answer. The point is to match cost to complexity and upside.
Buyer note: fees when you are the one paying
If you are buying a business in London, the cleanest structure is to work through the sell-side broker. You do not pay them directly, and you get information symmetry. If you run your own buyer search and hire a broker to hunt, the typical buyer’s mandate in London includes a 2,500 to 5,000 monthly research retainer for 3 to 6 months, creditable against a 3 to 5 percent success fee with a 25,000 to 50,000 minimum. That buys proprietary outreach, not just surfing public listings for a business for sale in London Ontario.
You will hear about buying a business London buyers closing with a small off-market premium to keep competitors from seeing the deal. If your broker delivers a proprietary wholesale opportunity, paying their minimum fee will feel like a bargain. If all you receive are links to listings you already saw, it will not.
What to ask before you sign an engagement letter
The conversation matters more than the glossy brochure. Ask for specific examples of similar companies the broker has sold in the last three years in London or within a two-hour drive. Get clarity on who will do the day-to-day work. Then ask them to walk you through a sample fee calculation using three different sale prices to show you how tiers, minimums, and HST would play out.
Do not be shy about asking where your listing will appear, which buyer lists they maintain, and how they handle confidentiality with staff. If they mention an internal pool of buyers and talk about off market business for sale options, ask how they prevent conflicts of interest. If they represent both sides, insist on transparency and consider bringing your accountant into the fee conversation early.
The timeline of costs, start to finish
The first thirty days are heavy on preparation. If there is a retainer, it starts here. Marketing expenses kick in when the teaser goes live and the buyer outreach begins. By days 45 to 90, you are having first buyer calls under NDA. Indications of interest arrive in the 90 to 150 day window. Letters of intent follow. Diligence and legal drafting consume the next 45 to 90 days. The success fee is due on closing, sometimes with a small holdback aligning with any escrow if the purchase price is not fully cash.
If your transaction includes an earnout or a vendor take-back, nail down in advance whether the broker’s fee on those deferred elements is due at close or as payments are received. Many brokers ask for the full fee at close based on total enterprise value, but you can reasonably propose paying the portion of the fee tied to contingent amounts as they are realized. Be prepared to give something back in exchange, like a slightly higher upfront percentage.
A London-specific lens on listings and who sees them
Public listing sites for business for sale London, Ontario draw a lot of window shoppers. They serve a purpose, but serious buyers in this region are often already on brokers’ internal lists. Construction trades, specialized manufacturing, and B2B services firms usually sell through targeted outreach rather than splashy listings. That is why you want to understand whether your broker’s fee is paying for that outreach or just for someone to post and wait.
If you are browsing small business for sale London boards and see something promising, ask the broker for a call rather than just filling in a form. A five-minute chat moves you past the crowd, especially if you already have your financing plan and a short buyer profile ready.
Pulling it together without surprises
The right fee structure is the one that aligns incentives, fits your size, and stays crystal clear in how it is calculated. In London, a typical small business sale under 1 million carries a 10 percent success fee with a 30,000 to 50,000 minimum and a modest marketing budget. Mid-market deals between 1 and 5 million use a stepped schedule that lands near 6 to 10 percent effective. Retainers are common but negotiable, and HST applies to everything. Tails protect the broker’s introductions, but they should not last forever or apply to the whole world.
If you keep those guardrails in mind, you can evaluate any proposal, whether it is from a national brand, a local independent, Sunset Business Brokers, Liquid Sunset Business Brokers, or another boutique you trust. Ask for the math in writing. Test it with three price points. Cap the squishy bits like expenses. Then focus your energy on the pieces that actually lift value: clean financials, tidy contracts, realistic normalization, and a steady hand when the first buyer tries to chip the price in diligence.
The London market rewards preparation and transparency. Fees are part of that story. When you demystify them and get the structure right, the rest of the work has room to pay off.