An earn-out makes part of the sale price depend on the business meeting agreed targets after completion. It can bridge a valuation gap, but sellers must assess control over results, calculation rules, payment security and tax treatment before accepting it.
By Tony Vaughan · Published · Last reviewed
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When selling a business, one of the most debated topics is the earn-out. Love them or hate them, they remain a common feature of SME business sales and M&A transactions.
For many owners, especially those approaching retirement, understanding earn-outs is critical. After years of building value, the last thing you want is to walk into a deal that leaves you short-changed.
Handled poorly, earn-outs can feel like a stick, making you “earn” what you’ve already delivered. Structured correctly, they can be a carrot, helping bridge gaps, reward future performance, and secure a fair exit value for both buyer and seller.
What Is an Earn-Out?
Hypothetical SME example · not a real transaction or market benchmark
£2 million headline price is not £2 million today
- Cash on completion
- £1,200,000
- Received immediately at completion.
- Fixed deferred consideration
- £400,000
- Payable later under agreed terms. Still exposed to payment timing, credit and enforcement risks.
- Contingent earn-out
- Up to £400,000
- Up to this amount, only if specified conditions are met. It may be lower or zero.
Received immediately£1,200,000
Maximum total, if all amounts are paid£2,000,000
With no earn-out, the total would be £1,600,000, assuming the fixed deferred amount is paid in full. Actual receipts could be lower if a deferred payment is not made. These are gross consideration amounts, before any tax, fees or other adjustments.
An earn-out is a performance-based element of consideration in a business sale. Rather than paying the entire purchase price upfront, the buyer agrees to pay part of it later, provided the business meets agreed performance targets.
Earn-outs are typically used to:
- Bridge a valuation gap where the seller sees growth potential but the buyer is cautious.
- Motivate sellers who remain involved post-completion to keep driving performance.
- Protect buyers from overpaying if forecasts don’t materialise.
When Earn-Outs Work
Earn-outs can add real value if the circumstances are right:
- You remain involved: You’ll still be in the business and able to influence results.
- Growth is tangible: A strong pipeline, new contracts, or new markets are on the horizon.
- Metrics are clear: Simple, auditable KPIs like EBITDA or gross profit, with safeguards.
- Buyer continuity: No major changes in pricing, staff, or operations that undermine the targets.
In these cases, the earn-out becomes the icing on the cake, not the cake itself.
When to Walk Away
Earn-outs aren’t always appropriate. Warning signs include:
- You want a clean exit: If you’re retiring immediately, you won’t control performance.
- Buyer holds all the levers: Integration, resourcing, or pricing decisions sit outside your influence.
- Volatile revenues: Reliance on a handful of clients or unpredictable markets.
- Over-weighted earn-out: If deferred consideration is the bulk of the deal, your retirement security is at risk.
In short: if it feels more like a stick than a carrot, the structure is wrong.
How to Structure an Earn-Out That Works
A balanced earn-out should be fair, clear, and limited. Consider these principles:
- Assess the exposure: Decide how much contingent value you can afford to risk, based on guaranteed proceeds and your future financial needs.
- Define the maths: Agree KPIs and calculation methods upfront.
- Protect against manipulation: Lock accounting policies and central cost treatments.
- Governance matters: Set monthly reporting, system access, and audit rights.
- Separate roles: Document employment and sale consideration distinctly, but obtain tax advice: the facts and employment links, not drafting labels alone, determine treatment.
- Dispute resolution: Agree mechanisms to resolve issues early.
The Bottom Line
An earn-out should be a carrot to help you and the buyer meet in the middle, rewarding future value, not a stick that risks undermining your retirement.
If you’re approaching retirement, this is especially important. After decades of work, your exit needs to protect your legacy, your people, and your future security.
Ready to plan your retirement exit? It’s the first step towards securing a fair deal and the retirement you deserve.
Understand your options before deciding. If you would like to discuss your own circumstances, you can request a confidential business exit review; enquiries are reviewed by experienced advisers who can discuss suitable options.
Common questions
How does an earn-out differ from fixed deferred consideration?
An earn-out depends on future performance; fixed deferred consideration is an agreed amount payable later, subject to the contract. Both expose the seller to payment risk.
Why can EBITDA earn-outs lead to disputes?
Accounting changes, group charges and investment decisions can alter EBITDA. Agree policies, permitted adjustments and worked examples before signing.
Can I accept an earn-out if I retire immediately?
Yes, but you may have little influence over results. Assess buyer operating commitments, information rights and whether the guaranteed proceeds meet your needs.
Are earn-out payments always taxed as capital gains?
No. Treatment depends on the rights created and any connection with employment. Separate drafting of employment terms alone does not determine the tax result.
General information from our archive, not personal advice.
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