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M&A Advisory

Earnouts in 2026: How Deal Structures Are Closing the Valuation Gap

SRS Acquiom's latest Deal Terms Study and recent Delaware rulings are reshaping how buyers and sellers use earnouts, rollover equity, and seller notes to bridge bid-ask spreads.
KAS Advisors • April 18, 2026 7 min read

When the 2024 and 2025 middle-market deal environment thinned out, buyers and sellers discovered they could still transact by agreeing on structure rather than price. That pattern has carried forward into 2026, and the latest SRS Acquiom Deal Terms Study and other current data show the result clearly: earnouts, seller notes, and rollover equity are doing more work in deal-making than in any prior year this decade. The specific features of those structures are evolving in important ways, and the recent round of Delaware decisions has tightened the drafting discipline required to make them durable. For owners and buyers approaching 2026 transactions, the earnout conversation is no longer optional, and a careless one is costly.

How We Got Here

The immediate cause is a persistent valuation gap. Sellers came into 2024 and 2025 with expectations shaped by the 2021 peak. Buyers, particularly private equity sponsors, came in with underwriting discipline sharpened by a cycle of exits that underperformed vintage expectations. The gap produced either failed processes or structured deals. Increasingly, it produced structured deals.

In 2026, the gap has narrowed but not closed. Public-market volatility in the first quarter, selective private credit posture, and buyer caution on certain sectors have kept the bid-ask spread meaningful for businesses that do not fit a cleanly preferred thesis. Earnouts are the most common bridging mechanism in that environment, followed by seller notes and rollover equity, and increasingly combinations of all three.

What the 2026 Data Shows

Earnout prevalence has risen materially. While the exact incidence varies by sample, the direction is consistent across advisors: a materially larger share of 2026 private-company transactions include earnout components than did 2021 or 2022 deals. The structure of those earnouts has also shifted.

Performance periods are shortening. Earnouts that extend beyond three years have become uncommon, and the majority of 2026 earnouts run 12 to 36 months. This reflects both seller resistance to long tails and buyer awareness that longer earnouts create operating-cadence complications during critical post-closing integration periods.

Multiple metrics are the norm. A significant majority of earnouts in 2026 reference more than one metric, most often combining an EBITDA or revenue threshold with a customer retention or milestone-based component. Single-metric earnouts have become less common, in part because both sides have learned that simple structures can produce gamed outcomes.

Measurement is being tightened. Both sides are investing more drafting effort in the specific accounting of earnout metrics: how revenue is recognized, which costs are allocated, how capital expenditure decisions feed the calculation, and how acquisitions or divestitures during the earnout period are handled. Post-closing disputes are typically the result of ambiguity in exactly these areas.

Earnouts are doing more work in 2026 than at any point this decade, and a careless one carries real cost long after the deal closes.

The Delaware Effect

A series of Delaware cases over the past 24 months has reshaped the legal expectations around earnouts. The most important takeaway for practitioners is that earnout covenants (the operational obligations a buyer takes on during the earnout period) are being read more strictly than they were a decade ago. Clauses such as "commercially reasonable efforts" are being parsed with attention to what the parties actually intended to commit to, and courts have shown a willingness to find buyers in breach where operational decisions appear to have prioritized acquirer benefit over earnout achievement.

The practical consequences are two-fold. Drafting discipline matters more than ever. Vague covenants that felt collegial in negotiation can become expensive in litigation. Both buyers and sellers benefit from specificity: what operational decisions require consultation, what budgets must be maintained, what cost allocations are permitted, how cross-entity transactions are treated, and what happens if the acquirer decides to change strategy mid-earnout.

Process discipline during the earnout also matters. Buyers who document their operational reasoning contemporaneously, who communicate transparently with earnout-holding sellers, and who run a disciplined earnout-calculation process have fewer disputes. Sellers who preserve their own records of performance, who monitor the operational covenants, and who engage promptly when operating changes appear to be harming earnout potential have stronger positions when disputes arise.

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Seller Notes and Rollover Equity in the Mix

Earnouts are not the only bridge. Seller financing (where the seller takes a note for part of the purchase price) has become more common in lower-middle-market transactions, particularly where bank financing is not filling the full capital stack and the seller has conviction in the buyer. Seller notes are typically shorter than they were in earlier cycles, often 24 to 48 months, and carry market interest rates with structured amortization.

Rollover equity has become almost standard in private-equity-led acquisitions of founder-owned businesses. A founder rolling 15 to 30 percent of proceeds into the new capital structure gives both sides alignment (the seller continues to benefit from upside under the sponsor's ownership) and signal quality (a seller who rolls is telling the buyer something positive about their own view of the business). Rollover equity can also have tax-efficiency characteristics depending on the transaction's structure.

The most interesting 2026 development is the combination. It is not unusual now to see a transaction structured with a cash component, a rollover equity component, a performance-based earnout over 18 to 24 months, and occasionally a modest seller note. Each piece is smaller than it would be in isolation, and the combined package allows the parties to meet in the middle on headline value. Executed well, these structures produce outcomes both sides are comfortable closing at. Executed poorly, they produce disputes that outlast the deal by years.

Practical Guidance for Sellers

A seller facing an earnout proposal should resist accepting the structure without understanding what it actually does for total value. A short discipline helps.

First, discount the earnout. Sellers consistently over-weight the probability of achieving earnout targets. A realistic discount factor (often 30 to 50 percent depending on ambition and period) produces a more honest comparison against an all-cash alternative.

Second, scrutinize the operational covenants. The earnout is only as good as the buyer's obligation to run the business in a way that lets the earnout be earned. Sellers should negotiate specific, not vague, protections: budget commitments, non-compete restrictions on the buyer's affiliates, restrictions on cross-entity cost allocation, and clear approval rights over strategic decisions that materially affect earnout metrics.

Third, think about integration. An earnout that requires the acquired business to run autonomously during the performance period is different from an earnout that survives integration into the buyer's platform. Sellers should understand which they are being offered, and price accordingly.

Fourth, plan for reporting. Clear, frequent reporting on earnout metrics is a protection against end-of-period disputes. The reporting obligations should be specified in the agreement, not left to post-closing goodwill.

Earnout Negotiation Checklist

Practical Guidance for Buyers

Buyers should match structure to thesis. An earnout that stretches beyond the operational visibility a buyer actually has on the business is more a legal commitment than an underwriting tool. The same is true of rollover equity in founder-run businesses where the founder is expected to exit at closing.

Covenant drafting deserves real attention. A well-drafted earnout protects the buyer from being forced into uneconomic operating decisions while still giving the seller meaningful assurance that their consideration will be calculated fairly. Drafting shortcuts in this area routinely produce post-closing disputes that consume management time and legal spend.

Forward Look

Two developments will shape earnout practice through the balance of 2026. First, sector volatility will keep bid-ask spreads wider in certain segments, which means earnouts will continue to be the bridge of first resort. Second, the Delaware bench will continue to refine the expected conduct of buyers during earnout periods, and the drafting community will continue to tighten language accordingly. Parties should expect each year's model agreement to be more specific than the last.

Executed well, structured deals produce outcomes both sides are comfortable closing at. Executed poorly, they produce disputes that outlast the deal by years.

The Bottom Line

Earnouts and related structured features are doing real work in 2026 deal-making. They close valuation gaps that would otherwise produce failed processes, and they align buyers and sellers on outcomes that depend on post-closing performance. The discipline that separates good outcomes from bad ones is specific: careful structure, careful drafting, realistic probability weighting, and thoughtful operational covenants. Owners and buyers who invest in that discipline up front avoid the disputes and valuation disappointments that undermine poorly structured deals after the fact.

Disclaimer: This article is for informational purposes only and does not constitute financial, investment, tax, or legal advice. KAS Advisors recommends consulting with qualified professionals before making business or financial decisions. Past performance and market trends discussed herein are not indicative of future results.