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Purchase price & earn-out

Earn-out metrics after closing: identifying and limiting result manipulation

Control earn-out metrics after closing: calculation, accounting, information rights, result manipulation and dispute mechanics in an Austrian acquisition.

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3 September 2026 · Mag. Bernhard Brandauer, Rechtsanwalt

Under an earn-out, part of the purchase price depends on metrics after closing. The real dispute therefore often begins later: which figures apply, how are they calculated and may the buyer run the business in a way that reduces the payment?

This post focuses on controlling earn-out metrics and protecting against result manipulation. It covers calculation rules, the distinction between statutory accounts and the contractual price formula, information rights and a workable dispute process.

The general post on the earn-out purchase price clause explains the concept and common metrics. This post deals with practical implementation after closing. The purchase price and earn-out focus page places both questions in the wider transaction structure.

Earn-out metrics after closing: identifying and limiting result manipulation

Are the earn-out metrics, calculation rules and control rights clearly fixed after closing?

Review the metric, data source, accounting method, permitted business decisions and access to supporting records together. A target figure alone does not create a reliable calculation.

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01 Question 1

Are the earn-out metrics, calculation rules and control rights clearly fixed after closing?

Review the metric, data source, accounting method, permitted business decisions and access to supporting records together. A target figure alone does not create a reliable calculation.

All paths at a glance

Overview of all answers.

01

The basis for a reviewable earn-out calculation is in place.

Run the clause through a realistic worked example. Align the accounting period, information deadlines and responsibility for technical disputes with the rest of the SPA. Changes to the business model or group structure should be addressed as specific cases.

02

The earn-out needs a more precise control and calculation logic before closing.

Add the definition, data source, accounting method, adjustments, information rights and dispute process. Pay particular attention to cost allocations, intra-group transactions and measures that can move revenue or earnings between periods.

Which metric should the earn-out measure

The parties should first identify the economic development that is meant to trigger the additional payment. Revenue measures sales performance, EBITDA measures operating earnings and a milestone measures a specifically described event. Each metric needs a period, threshold, formula and rule for partial achievement.

An earnings metric also requires the parties to specify the accounting methods. Austrian annual accounts operate within the statutory framework of sections 195 and 201 of the Austrian Commercial Code, the UGB. The agreement may refer to that framework, define individual items in more detail or provide for agreed adjustments. It should clearly distinguish the statutory annual accounts from the contractual purchase price calculation.

A metric remains unclear if terms such as exceptional expenses, sustainable earnings or comparable costs are left without examples and boundaries. The review of management accounts and quality of earnings provides important preparation, but it does not replace a contractual definition.

How calculation rules limit result manipulation

Result manipulation can arise from ordinary business decisions. An order is invoiced earlier or later, a marketing measure is brought forward, a group company changes an internal charge or an investment is postponed. Each measure may have a business rationale. For the earn-out calculation, the question is whether the agreed rule presents the relevant period and metric fairly.

The clause should therefore state how revenue, provisions, depreciation, bonus payments, one-off items and intra-group charges are treated. A change in accounting or valuation method also needs a rule. The parties may require the method to remain unchanged, adjust the figure to the previous practice or use a separate reconciliation. Their choice should be shown with figures.

Under section 914 of the Austrian General Civil Code, the parties’ intention and the requirements of good faith guide contractual interpretation. Precise documentation therefore serves two purposes: it makes the economic agreement understandable and reduces room for later interpretation. A general duty to operate the business properly is rarely enough.

What conduct the buyer must follow

The buyer generally needs to develop the business after closing. An earn-out clause should therefore preserve commercial decision-making while distinguishing legitimate decisions from targeted influence on the earn-out metric.

A workable clause can require the business to be run in line with its ordinary plan and with appropriate commercial care, unless objective reasons justify a change. It can also address group companies, internal charges, the transfer of customer orders, product discontinuation and material investment. Necessary restructuring should trigger notice with a reasoned explanation.

The rule should cover integration into a group structure. Clear allocation rules are then needed for shared costs, central services, financing and sales. A blanket ban on any change in earnings would be impractical, while an entirely free hand for the buyer would undermine the price agreement.

How the seller can control the calculation

Control starts with a fixed accounting process. The buyer delivers the calculation together with the profit and loss statement, a reconciliation to the contractual metric and the key supporting records. The seller receives a reasonable period for objections. The parties can then separate undisputed items from questions that require technical review.

The information right should cover the data needed for the metric and its adjustments. Depending on the model, this may include ledgers, debtor lists, contracts, cost allocations, plan-versus-actual comparisons and records of exceptional transactions. The seller does not need every internal document. The scope should track the calculation.

The agreement may provide for review by an independent auditor or another suitably qualified expert. It should state who appoints the expert, which questions may be submitted and how costs are allocated. The post on completion conditions in an acquisition shows how evidence and deadlines can be built into transaction documents before closing.

How to resolve an earn-out payment dispute

The dispute process should separate a calculation dispute from a legal dispute. An independent expert determiner can calculate the metric where the parties disagree about figures, allocations or valuation methods. The expert should be bound by the contractual definitions and deal only with the disputed points.

Legal questions remain for the agreed court or arbitral tribunal. These may include whether a management measure breached a protective duty or how a clause must be interpreted. The process should specify objection periods, records, the scope of review, the decision date and the binding effect of the determination.

The agreement should also state which amount is payable while the dispute continues. Options include paying the undisputed part, making a provisional calculation and correcting it later. A purchase price holdback is different. It normally secures open risks or claims, while the earn-out calculation determines the variable part of the purchase price.

Do not draft the earn-out as a target figure alone: A threshold without a calculation method, records and protection against targeted result manipulation moves the conflict into the accounting process. Align the metric with the SPA, management accounts and planned conduct of the business. Subscribe to legal news for new articles and legal information from the firm.

Control matrix

Five levels of a reliable earn-out calculation

The additional payment becomes reviewable when the contract, figures, business conduct and dispute process follow the same logic.

Review fields for earn-out metrics after closing
Level Question Reliable rule
Metric Which development triggers payment? Define formula, period, threshold and partial targets Traceable starting point
Accounting Which methods and adjustments apply? Align UGB reference, contract definition and examples Comparable calculation
Conduct Which measures may the buyer take? Govern ordinary conduct, group transactions and special cases Protection against targeted result manipulation
Information Which records does the seller receive? Fix calculation, records, deadlines and review Control instead of an assumption of trust
Dispute Who decides calculation errors? Separate expert determination, objections and legal route Fast clarification of the undisputed part

The appropriate drafting depends on the business model, metric, group structure and the specific contract. Tax consequences require separate review.

FAQ

Frequently asked questions about earn-out metrics after closing.

Which metric is suitable for an earn-out? +

That depends on the business model and the purpose of the additional payment. Revenue, EBITDA, cash flow or a defined milestone may work. What matters is an unambiguous formula, a clear period, reliable data and rules for adjustments and special cases.

May the buyer run the business freely after closing? +

The buyer needs commercial freedom. The agreement can still require proper conduct, provide information rights and address group charges, revenue shifting or material changes where they affect the earn-out metric.

How can a dispute over the calculation be resolved? +

An independent expert determiner can address calculation and valuation questions. The agreement should define objections, records, review scope and payment of the undisputed amount. Legal questions remain for the agreed court or arbitral tribunal.

How does the UGB annual account relate to the earn-out calculation? +

The annual account follows the statutory accounting framework. The contract must additionally state whether and how those figures are used for the earn-out and which items are adjusted. A statutory account figure therefore does not replace a clear contractual formula.

When should earn-out controls be agreed? +

The calculation and control logic belongs in the transaction documents before the acquisition agreement is signed. After closing, data sources, permitted business decisions and dispute deadlines are much harder to renegotiate.

Topics
Earn-outMetricsResult manipulationClosingPurchase priceBusiness acquisition

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