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Insight

Exit strategy

Author: David Prosser

Published: 11 Mar 2024

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Earn-outs have always been popular with private equity acquirers, but trade buyers are now making more use of them than ever. David Prosser reports on the rise of earn-out clauses, and speaks to two leading M&A specialists at UK corporates.

New research from CMS reveals that 27% of deals last year included an earn-out – up from just 10% in 2010, when the professional services firm began its annual surveys of the European M&A market. One notable trend is that while earn-outs have always been popular with private equity acquirers, trade buyers are also now making more use of these structures than ever before. Such clauses have different drivers – and can work well – as long as they’re well thought through.

Earn-outs in practice

Earn-out agreements are bespoke, designed to reflect the needs and ambitions of both parties in each individual transaction. 

The most straightforward model is an agreement that offers a one-off payment in addition to the upfront consideration assuming a particular target is hit. Imagine, for example, a buyer agreeing an upfront payment of £100m, based on a multiple of 10 times the previous year’s £10m EBITDA, plus an additional £10m 12 months later if EBITDA rises to £11m over the year following the sale.

Other arrangements are more complex. One recent stock market disclosure revealed the details of a company bought in 2020, with three separate earn-out targets for 2021, 2022 and 2023. In each of these years, the seller was entitled to an additional payment if the business acquired then hit an agreed sales target, with nothing payable if the target was missed.

The agreement also featured a final catch-up payment related to total sales over the whole three-year period, irrespective of whether targets were achieved in individual years.

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Taxing times

Earn-out arrangements need to be structured carefully to avoid adverse tax consequences for both sellers and buyers. In the UK in particular, where a director or employee of the acquired business subsequently receives an earn-out payment, HM Revenue & Customs will classify the money as employment income, rather than a capital gain arising from the sale of the business, unless a number of key tests are met. That would be likely to result in a substantially higher tax bill for the individual, with income tax and national insurance due on the payment at a combined rate of up to 47%. The relevant capital gains tax rate, by contrast, is only 20%, or even 10% where business asset disposal relief is available. In these circumstances, the employer would also face national insurance and apprenticeship levy costs. These would be likely to fall on the acquirer, as it will be the employer at the time of the earn-out payment, although some deals include provisions to indemnify sellers against such costs.

HMRC publishes guidance on the criteria it uses to decide whether earn-out payments should be classed as employment income or as part of the sale consideration. But the tax authority considers each case individually, requiring very careful drafting of deal documents. There is guidance on this in the faculty’s earn-outs guideline (see below).

ICAEW support

ICAEW’s Corporate Finance Faculty published a best practice for earn-outs guideline, authored by Grant Thornton, in 2023. It explores the factors that can influence the outcome of an earn-out agreement, for both buyer and seller, illustrates the benefits and shows potential pitfalls.


Alan Adamson

CFO, Havas UK

Havas UK has made around 10 acquisitions in the past five years or so, and Adamson says earn-outs are almost always a feature of its deals. “Ours is a people business, so when we make an acquisition, what we’re really buying is its strategic leadership and client relationships, rather than what’s on the balance sheet,” he explains. “We want sellers to be motivated to keep driving the growth of the business on an ongoing basis.”

This is also reflected in the structure of the earn-out arrangements Havas tends to offer. While most buyers are wary of extended earn-out periods, Adamson typically looks for an arrangement of several years. The goal is to retain and incentivise the management team from the seller for as long as possible, usually with metrics related to future earnings before interest and taxes (EBIT).

Trade buyers typically dislike extended arrangements because these make it more difficult to integrate the new business; retaining a separate profit-and-loss account, for example, may be required to assess performance against the earn-out criteria. But this has not always been a priority for Havas, explains Adamson. “We are usually buying best-in-class businesses in areas where we’re looking to add skills or move into new channels, and we’ll often retain them as standalone brands.”

Give and take

Working in this way does require some compromise, he concedes. For example, Havas has previously adjusted terms to allow for the fact that in some situations a business might want to invest in building a presence in a new territory overseas. Such an investment would offer the potential for accelerated growth in the medium to long term, but could threaten to undermine the business’s progress towards its shorter-term earn-out targets. 

“In such a situation, we might look to add some of the costs of the investment back into EBIT – albeit with some cap on the upside should such an investment make an immediate return,” Adamson explains.

In general, however, renegotiations of earn-outs are rare. Any such tweaks would be agreed with individual management teams, and Adamson says disputes are unusual. A well-drafted sale and purchase agreement (SPA) should leave little room for argument during the earn-out period, he argues.

“Our approach is to get into the detail at an early stage,” he adds. “Our executive team will develop a very detailed heads of terms agreement that is heavily negotiated and covers all the commercial and financial considerations. The SPA drafted by our legal advisers should then follow on from that almost automatically.”

Havas seeks to find consensus with sellers, particularly given that management teams will usually continue to lead their businesses as standalone brands in the broader group. But there will still be tough conversations about aspects of the agreement. In particular, Adamson stresses the importance of defining the relevant metrics in the clearest possible terms. “The earn-out is based on EBIT with certain add-backs, but what those add-backs are, and when they apply, have to be very clearly understood by both sides from the start.”


Edouard Carlone

Head of M&A, Rigby Group

Rigby Group is a technology-focused family office. Carlone (above) says clarity of purpose is key to successful earn-out clauses: “One thing we’ve learned from deals over the years is to focus on what we call sustainable EBITDA. We want our SPA to set out what we’re really looking for in terms of EBITDA – that should be measurable and objective, but there are also conduct-related terms to consider.”

For example, Carlone says it is important to have provisions that prevent the management team from artificially inflating EBITDA during the period of the earn-out, at the expense of performance later on. Equally, the seller needs to feel protected, too – to have some reassurance, say, that cost won’t be loaded on to the business to artificially deflate EBITDA for the purposes of the earn-out calculation.

Like Havas, Rigby uses earn-out clauses in the majority of acquisitions it makes, although they tend to have shorter durations. One to two years is typical, says Carlone, although he is prepared to consider as long as three years in exceptional circumstances.

Most of the deals Rigby does are split between its technology services business, SCC – where it is looking to making acquisitions that will be value-additive as they are integrated – and its investment division Rigby Technology Investments, through which it acquires companies more in the style of a private equity firm. Earn-out clauses on these latter acquisitions, which remain independent, are more likely to be extended.

Either way, the focus is on value creation, says Carlone. “We are typically buying owner-managed companies that we think have potential for further growth – we’re paying for their prospects for the future as well as incentivising the key people to remain and accelerate growth,” he says. “The earn-out is just a mechanism for us all to share in those prospects and to ensure we motivate everyone who is integral to them.”

Mind the gap

Carlone believes that there can be a role for earn-outs to help bridge a valuation gap between deal parties, so that the buyer doesn’t feel it is overpaying and the seller can look forward to more upside if the business outperforms. But earn-outs designed simply for this purpose are likely to run into problems, he warns, particularly where the seller is looking for an immediate exit.

“Rather, we are looking for a meeting of minds on the rationale for the deal – what the business can achieve and how it will do that,” Carlone says. “If you reach that meeting of minds first, it should be much easier to get to a reasonable earn-out, even if the seller isn’t going to be involved throughout.”

Carlone stresses the importance of earn-out terms custom-made for the transaction. Rigby might, for example, insert criteria about business mix, seeking to test the quality of the EBITDA the business is generating. “Drafting will be led by our commercial teams because they have the closest understanding of the business,” he explains. “As head of M&A, I then act as a bridge between those teams and our legal adviser – effectively acting as a translator.”

Clear thinking

The key is to end up with an SPA that even non-lawyers can read and understand, particularly when it comes to the earn-out clauses. “The earn-out is the only bit of the agreement that you’re definitely going to look at again two years down the road, so it had better be crystal clear,” says Carlone.

That means covering all eventualities. Rigby, for example, likes to define what constitutes a “good” and a “bad” leaver, which determines what happens if an executive leaves before the earn-out concludes. Its SPAs also set out how disputes over earn-outs will be resolved, with a referral to an independent expert.

Nevertheless, earn-outs must reflect good faith on both sides, says Carlone, rather than an effort by either party to strongarm the other. “The bottom line is that we always want to pay out on the earn-out agreed,” reflects Carlone. “It means the deal has succeeded in the way we all hoped at the outset.”

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