Earn-outs sit in that space between what a buyer can prove on paper and what a seller believes in their bones. When a business is on the market in London, whether in the UK or London, Ontario, the gap between those two views often decides whether a deal closes or falls apart. At Liquid Sunset Business Brokers, we see earn-outs used to bridge that gap without overreaching on price or sacrificing future upside. They can be elegant, and they can be messy. The difference comes down to structure, measurement, and trust.
What an earn-out really does
At its core, an earn-out is a promise tied to performance. The buyer pays a portion of the price now, and the rest over time if the business hits agreed targets. It shifts some risk to the seller, who continues to benefit from growth after closing. It also protects the buyer from paying today for results that may not materialize tomorrow.
On small and mid-market transactions across London, we find earn-outs most useful when recent results are noisy. Think of a catering business coming out of a disrupted event season, or a B2B services firm that just landed two big contracts but has not yet recognized the revenue. A straight multiple on last year’s EBITDA feels wrong to both sides. An earn-out adds a path to yes.
The London reality: two markets, similar logic
The word London can mean Piccadilly or Richmond Street. The logic of earn-outs travels well, but details shift local to local.
In the UK, changing corporate tax rates and how contingent consideration is treated for both stamp duty and capital gains influence earn-out design. UK buyers often show a strong preference for normalized EBITDA targets and clear definitions of extraordinary items. Vendor loan notes and holdbacks sometimes sit alongside earn-outs to balance cash at close with measured risk.
In London, Ontario, bank financing norms and tax planning for Canadian controlled private corporations often shape whether a seller leans into an earn-out or prefers a simpler holdback. Lenders in Ontario generally want visibility on base cash flows for debt service, so too much price deferral can complicate a credit memo. We often anchor deals there with a stable cash portion, then layer a modest, clearly drawn earn-out on top.
Either way, the concept is the same. Structure and specificity are what keep both sides aligned.
Common forms of earn-out metrics
Metrics are your north star. Choose them carelessly and you set yourself up for disputes. Choose them well and you give both parties a clean way to track progress.
Revenue based earn-outs come up often with businesses where gross margin is robust and cost lines are relatively stable. Marketing agencies with retainer revenue, subscription software, and distribution businesses often fit this model. Revenue is easy to understand and hard to manipulate, but it can reward top-line growth even if profitability slips.
Gross profit based earn-outs split the difference. They recognize revenue while protecting against discounting and giveaways that erode margin. We use these with product companies and service shops that quote job by job.
EBITDA based earn-outs aim for the true engine of value. They are sensible where cost control and efficiency matter as much as sales volume, such as multi-site trades, clinical services, and manufacturing. The trap is definitional. Without a tight schedule of add-backs and normalizations, EBITDA can be argued into the ground.
Customer milestones or contract renewals make sense for businesses built on a few key accounts. For example, a commercial cleaning company where the top five clients drive 60 percent of revenue could place earn-out triggers on renewals at set gross profit thresholds.
A buyer and seller story from the field
A few years back, we helped a London UK based specialty food wholesaler sell to a regional strategic. The seller had just onboarded a national grocery chain. Forecasts were rosy. The buyer loved the brand but worried that a single account would dominate revenue.
We priced the deal at 5.2 times trailing twelve months EBITDA, split into 70 percent cash at close and 30 percent in a two year earn-out. The earn-out paid out in equal quarterly tranches, each tied to hitting both a top-line target and a gross margin floor of 28 percent. The seller stayed on as a part-time advisor for six months. The buyer agreed not to move production or change the price list for existing customers during the earn-out term without mutual consent.
The chain rolled out nationally, but not as quickly as the seller hoped. In year one, the business hit 90 percent of the revenue target but sailed over the margin floor, paying out 80 percent of the scheduled earn-out for that year. In year two, the rollout accelerated and the final tranches landed. No lawyers sparred, and both sides left happy. That is what a well-chosen metric and clean governance can do.
How much is usually on the table
Mid-market deals in London often allocate 10 to 40 percent of the purchase price to an earn-out, with two to three years as a common duration. Go shorter and you may not capture the full effect of sales cycles or seasonality. Go longer and fatigue sets in, and you increase the odds that market shifts or ownership changes distort the picture.
Payment frequency varies. Quarterly keeps energy high and helps catch issues early. Annual is simpler for accounting but can balloon disputes at year end. If the business has slow or lumpy revenue, such as project based work in construction trades, semi-annual can be a fair compromise.
Caps and floors matter. A sensible earn-out often sits on a sliding scale between a threshold where nothing pays and a ceiling where maximum payout triggers. This avoids cliff effects that encourage last minute gaming.
The friction points we watch
The hardest part of an earn-out is not drafting it. It is living with it. We have learned to protect the following pressure points before closing:
- The definition of the metric and the accounting policies. EBITDA must be defined in the agreement with a schedule of specific add-backs and what counts as extraordinary. If revenue is the metric, lay out how returns, rebates, and multi-year contracts are treated. If there is a seasonal dip in February for a retail business in London, Ontario, adjust the targets or measurement windows so nobody panics midwinter. Control during the earn-out. Sellers worry buyers will cut marketing or staff to juice short-term profits. Buyers worry sellers will chase low margin volume. A balanced clause might set a baseline marketing spend relative to revenue, or require mutual consent for price changes with top customers for a period. Integration and relocation. When a strategic acquirer folds a business into a larger group, overhead allocations can crush the very EBITDA the seller is trying to earn on. Good agreements specify which costs can be allocated, how transfer pricing works, and whether moving premises or changing systems requires consultation during the earn-out. Information rights. The seller cannot hit targets in the dark. Monthly management accounts, a dashboard of the chosen metrics, and access to raw data on request reduce suspicion and allow course correction. Dispute resolution. Despite best efforts, disagreements arise. Agree in advance on an independent accountant or arbitrator, a timeline for review, and that their decision will be binding except for manifest error.
Those five areas do more than prevent litigation. They keep people focused on the business rather than the contract.
What a clean earn-out clause looks like
Strong earn-outs read like a math problem with all variables named. Here is the sort of language we press for:
- Metric. Gross Profit for the Earn-Out Period equals Revenue recognized in accordance with the Accounting Policies less Cost of Goods Sold excluding one-time integration costs, consistent with Exhibit B. Targets and payout. If Gross Profit equals or exceeds 1.2 million during Year 1, Seller shall receive 250,000. If Gross Profit exceeds 1.2 million but is less than 1.5 million, payout shall be prorated linearly between 250,000 and 400,000. Maximum Year 1 Earn-Out shall not exceed 400,000. Accounting policies. Company shall prepare monthly management accounts in accordance with the Accounting Policies applied consistently with the twelve months preceding Closing. Any changes must be reasonable and consistent with GAAP and shall not be made solely to affect the Earn-Out. Operational covenants. Buyer shall maintain marketing spend at no less than 6 percent of Revenue during the Earn-Out Period, unless mutually agreed. Buyer shall not terminate or materially amend contracts with the Top 10 Customers without commercial justification documented in writing. Information rights. Seller shall receive monthly financial reporting within 15 days of month end and reasonable access to relevant records upon 3 business days’ notice.
The exact numbers will change, but the clarity should not.
Tax and legal contour in brief
Treat tax early, not at the eleventh hour. In the UK, HMRC guidance on contingent consideration and how earn-outs are taxed for sellers can make a £1 of earn-out worth less than £1 of cash at completion, depending on structure. Allocation between shares, goodwill, and employment income risk must be weighed. Stamp Duty and how loan notes or deferred consideration are handled in the share purchase agreement matter too.
In Canada, including London, Ontario, sellers often aim to qualify for the Lifetime Capital Gains Exemption. The form of earn-out, and whether contingent payments are treated as additional purchase price or as income, can affect eligibility. Buyers weigh deductibility and withholding obligations. None of this is abstract. We have reshaped deals to bring sellers back under LCGE limits or to avoid a disastrous reclassification that turns a capital gain into income.
Work with your tax advisor. It costs far less to design it right than to fight it later.
Sector specifics we keep in mind
Service-heavy companies with low working capital needs, such as digital agencies in Shoreditch or tech support firms near White Oaks, often suit revenue or gross profit earn-outs. Contracts, churn, and utilization drive these models, so we tailor targets to those rhythms.
Retail and hospitality, especially in central London where footfall swings by season, require seasonalized targets or multi-year averages. A flat monthly hurdle invites unnecessary stress.
Healthcare clinics and regulated trades often draw EBITDA based earn-outs, but with add-backs for owner compensation normalized and tight definitions that exclude regulatory change costs Check details beyond a certain threshold.
Construction, specialty contracting, and engineering firms benefit from backlog based triggers. For instance, a payout tied to achieving a specific level of contracted but not yet recognized revenue, with a conversion rate assumption agreed in advance.
Distribution and light manufacturing lean toward gross profit targets with explicit treatment of input cost inflation. If resin or fuel prices spike, there should be a mechanism to adjust targets or at least a recognition of pass-through.
Earn-out with seller involvement or without
Whether the seller stays on can make or break performance. When the seller is the rainmaker, a consultancy agreement with clear KPIs gives buyers comfort and lets sellers drive the result they need. The trick is to align compensation so it does not distort the earn-out. If a seller’s fee is expensed below the earn-out metric, make sure that impact is accounted for.
In a recent London, Ontario sale of a commercial landscaping business, the founder stayed on for one full season to transition municipal contracts. The earn-out was tied to renewals and average gross margin across those accounts. His consulting fee was carved out of the gross margin calculation for those specific clients. Simple and fair.
If the seller is exiting immediately, the earn-out relies more heavily on the buyer not making abrupt changes. That pushes us toward more buyer covenants, lighter integration during the measurement period, and sometimes a modest escrow so the seller believes the buyer will follow the rules.
Handling off market nuance
When we work on an off market business for sale, documentation and trust have to carry more weight because there is less public information and fewer bidders to triangulate price. Earn-outs in those cases are a quiet way to pull a skeptical buyer and a proud seller into alignment.
We saw this with a small artisan manufacturer in North London. No brokered process, limited financial sophistication, but a superb product and a loyal customer base. Using a simple revenue based earn-out capped at 20 percent of the price, with monthly visibility and a six month review clause, let both sides move. Liquid Sunset Business Brokers handled the cadence, set up consistent reporting templates, and kept everyone honest.
Quick checklist for setting your earn-out metrics
- Pick one primary metric that matches how value is created, then define it precisely in writing with examples. Set time frames that map to sales cycles and seasonality, not to calendar convenience. Align operational covenants to prevent obvious gaming, and state which decisions need mutual consent. Choose payment frequency and dispute resolution mechanics that keep both sides engaged without creating busywork. Cap payouts and consider a graduated scale to avoid cliffs that encourage last minute distortion.
When earn-outs go wrong, and how to avoid it
The ugliest fights we witness share a theme. Vague definitions, shifting accounting, and silence between the parties. Fix those, and the rest is usually manageable.
A classic misstep is overreliance on EBITDA without tightly defined add-backs. If the buyer can stack corporate overhead onto the target company at will, or if integration costs are unbounded, the seller will see the goalposts move. Another is tying payout to net income in a small business. At that level, tax planning and one-time charges can swing outcomes wildly and unfairly.
We also caution against unlimited duration. A four or five year earn-out might look like a sweetener, but people change roles, systems migrate, and markets move. Two or three years is a human timeline. It keeps urgency up and memories fresh.
Local insights and how we help
If you are scanning a small business for sale in London or sifting through companies for sale London style, there is no single template. A West End boutique agency with retainer clients, a Stratford light industrial supplier, or a suburban HVAC firm in London, Ontario each call for a different yardstick and a different length of runway.
What we do at Liquid Sunset Business Brokers is keep the human part visible while we get the math right. We ask the awkward questions early. Who owns the customer relationships really. How lumpy are collections. What happens if the head chef leaves, if the clinic’s lease resets, if the top client shifts to quarterly RFPs. Then we write the earn-out you will not mind reading at 2 a.m. three quarters from now.
Along the way, we make sure the structure works with lender expectations and with tax planning. If you plan to buy a business in London or buy a business London, Ontario style, and you need bank financing, we will help balance cash at close, earn-out scale, and debt service coverage so your loan officer is nodding, not frowning. If you are getting ready to sell a business London, Ontario or beyond, we will coach you on the narratives and data habits that make performance based consideration credible.
A few grounded numbers to calibrate your expectations
Across deals we have touched in recent years:
- Earn-outs tied to revenue have a higher probability of paying out something, often 70 to 90 percent of scheduled tranches, but with greater variance. Good for sellers who trust the pipeline but want some guaranteed upside. EBITDA based earn-outs tend to pay lower percentages on average, perhaps 50 to 75 percent across the term, but they align better with true value. Buyers like them for exactly that reason. Two year earn-outs show fewer disputes than three year ones, not because people misbehave in year three, but because turnover in teams and drift in accounting policies increase with time. Quarterly reporting leads to earlier interventions. When both sides see a soft patch in Q2, they can change tactics in Q3, rather than litigate at year end.
These are directional, not universal. But they remind us to stay practical.
Where to find fit-for-purpose opportunities
If you are scanning listings for a business for sale in London or looking specifically for businesses for sale London, Ontario, look beyond headline multiples. Ask how the targets map to the last two years’ rhythm and the next two years’ plan. We often surface opportunities that never hit the usual portals, and some of those off market business for sale cases are perfect candidates for a simple, transparent earn-out that de-risks the leap of faith both sides must take.
Clients come to Liquid Sunset Business Brokers to buy a business in London or to engage a business broker London, Ontario when they want a deal that survives the first winter. Earn-outs, designed well, are one of the reasons those deals do.
Final guidance before you draft
Resist the urge to cram every fear into the document. Clarity beats complexity. Use one or two metrics, not four. Pick accounting policies and freeze them. Sit the key people down and agree what success looks like week by week, quarter by quarter. Then write those words into the contract.
If you need a starting point, we have internal templates refined by transactions across sectors and geographies. They are not rigid. We adapt them to a café in Richmond, a dental practice near Covent Garden, or a manufacturing plant just outside London, Ontario. The names on the tabs change, the principles do not.
And if you only remember three things as you weigh Liquid Sunset Business Brokers in your search for a small business for sale London or while scanning a business for sale London, Ontario listing with promise, try these: pick the right metric, measure it cleanly, and keep talking. That is how earn-outs earn their keep.