What are the risks of an earn-out for a seller in Canada?

An earn-out exposes you to payment uncertainty, loss of operational control, potential calculation disputes, unfavorable tax treatment, and the risk that you never receive the full deferred amount. Approximately 25–30% of deals with earn-outs result in disputes, and if the buyer becomes insolvent during the earn-out period, you become an unsecured creditor for the unpaid balance.

What an earn-out is and why buyers propose them

An earn-out is a deferred payment structure where part of the purchase price is contingent on the business hitting specific performance targets after the sale closes. Commonly used in 30–50% of private M&A transactions in the lower middle market, earn-outs allow buyers and sellers to bridge valuation gaps — the buyer won't pay your asking price upfront but will agree to higher total consideration if future performance targets are met.

In Canadian deals under $10M, earn-out periods typically range from 1–3 years, with 2 years being most common. Common metrics include revenue targets, EBITDA targets, customer retention rates, and product development milestones.

Payment uncertainty — you may not receive the full deferred amount

The core risk is simple: you may not get paid. If the business underperforms during the earn-out period — whether due to market conditions, buyer mismanagement, or structural changes the buyer makes — you forfeit the deferred portion of the purchase price.

In most cases, sellers remain involved in the business during the earn-out period (70–80% of transactions with earn-outs), but you no longer control key decisions. This creates a fundamental misalignment: you need the business to hit specific targets, but the buyer controls the operations that determine whether those targets are met.

Loss of control over operations affects earn-out performance

Once the sale closes, the buyer controls the business. According to multiple deal advisors and legal case precedents, buyers may change operational strategies, allocate costs differently, or integrate operations in ways that reduce earn-out calculation metrics even if overall business performance is strong.

Some business owners report frustration when buyers delay investments, change accounting methods, or reassign key customers to other divisions during the earn-out period. You may see revenue or EBITDA decline not because the business is failing, but because the buyer is optimizing for their broader portfolio rather than your earn-out metrics.

Disputes over earn-out calculation and metrics

Earn-out disputes arise in approximately 25–30% of deals with earn-out structures. Common disputes include:

• Accounting method changes: The buyer switches from cash to accrual accounting, reclassifies expenses, or allocates corporate overhead in ways that reduce EBITDA.
• Revenue recognition: Disagreements over when revenue is counted, especially for multi-year contracts or subscription models.
• Cost allocation: The buyer assigns shared costs (IT, marketing, management fees) to your business unit that weren't there before the sale.
• Customer reassignment: Key customers are moved to another division, reducing your earn-out-eligible revenue.

Subjective metrics (like "EBITDA as determined by buyer's accounting policies") create more dispute risk than objective ones (like "audited gross revenue"). Even well-drafted earn-out provisions can become litigation if buyer and seller interpret the terms differently.

Tax implications of deferred consideration in Canada

In Canada, earn-out payments are typically treated as capital gains if structured as deferred purchase price, rather than employment income. However, CRA scrutiny increases if the seller remains actively involved post-sale. If the CRA determines the earn-out is actually compensation for ongoing work rather than deferred sale proceeds, it is taxed as employment income — which can result in tax rates 20–30 percentage points higher than capital gains treatment in high-income scenarios.

The tax structure of your earn-out should be reviewed by a tax advisor before you sign the purchase agreement. Once the deal closes, it's too late to restructure.

Personal guarantee and non-compete constraints

Non-compete clauses are typically linked to earn-out periods, meaning you cannot pursue alternative business opportunities during the 1–3 year earn-out window. You are locked into waiting for the earn-out to resolve before starting a new venture in your industry.

If you violate the non-compete, you may forfeit the earn-out entirely — even if the business hits its targets.

Buyer insolvency risk

If a buyer files for bankruptcy or becomes insolvent during the earn-out period, the seller typically becomes an unsecured creditor for the deferred amount. You rank behind secured lenders and may recover little or nothing.

This risk is higher in leveraged buyouts, where the buyer finances the acquisition with significant debt. If the business underperforms and the buyer defaults, your earn-out evaporates.

How to mitigate earn-out risk

According to M&A legal practitioners including Osler, Torys, and McMillan LLP, sellers who negotiate floor guarantees, objective calculation methods (e.g., percentage of audited revenue vs. subjective EBITDA), and clear operational control boundaries during the earn-out period reduce dispute risk.

Specific strategies include:

• Floor guarantees: Negotiate a minimum earn-out payment regardless of performance, reducing downside risk.
• Objective metrics: Use audited revenue or customer count rather than EBITDA or profit, which the buyer can manipulate through cost allocation.
• Escrow or security: Require the buyer to escrow part of the earn-out amount or provide a letter of credit.
• Operational covenants: Define limits on cost allocation, accounting method changes, and customer reassignment during the earn-out period.
• Independent auditor: Specify that a mutually agreed third-party auditor calculates the earn-out, not the buyer's internal accounting team.
• Accelerated payout clauses: If the buyer sells the business or changes control during the earn-out period, the full earn-out becomes immediately payable.

The best way to avoid earn-out risk is to negotiate a higher upfront cash payment and a smaller or no earn-out. Every dollar deferred is a dollar at risk.

This article is for informational purposes only and does not constitute financial, legal, or business advice. Every business sale is different. Before making decisions about valuation, pricing, or engaging an advisor, consult a qualified professional familiar with your specific situation.

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