Earnouts in M&A in Brazil (2026): How to Structure, Tax & Enforcement Risks for Buyers and Sellers

Audience: Buyers, sellers, corporate counsel and M&A advisers deciding whether and how to use earnouts in Brazilian deals. Focus: practical structuring, tax treatment, enforceability and dispute prevention. Last updated: October 2026.

Earnouts in M&A Brazil have become one of the most frequently negotiated mechanics of recent deal cycles, as valuation uncertainty and market volatility push buyers and sellers to bridge price gaps with contingent consideration rather than walk away. An earnout ties part of the purchase price to the target’s future performance, which lets a seller capture upside while giving a buyer protection against overpaying for forecasts that never materialise. In Brazil, these structures sit at the intersection of contract law under the Código Civil, corporate approvals under Lei nº 6. 404/1976, tax characterisation under the Código Tributário Nacional, and enforcement through arbitration or the civil courts.

This guide is a practitioner playbook: it walks through how to structure earnouts, how they are taxed, where disputes arise, and how to draft around the risks that most often derail post-closing payments. Read it as a decision tool for deals being signed in 2026 and beyond.

Quick summary, should you use an earnout in Brazil?

Before committing to contingent consideration, test the deal against three practical questions. Earnouts work best when the parties genuinely disagree on value for reasons that time will resolve, not as a way to paper over fundamental mistrust.

• Is there a real valuation gap? Earnouts are a bridge, not a bandage. If the buyer and seller are far apart because the seller’s growth story is unproven, deferring part of the price against measurable results is rational. If the gap reflects disagreement over hard historical facts, a post-closing adjustment or a holdback is usually cleaner.
• Who controls the business after closing? Earnouts reward future performance, but the buyer normally runs the company after closing. That information and control asymmetry is the single biggest source of earnout disputes in Brazil. If the seller cannot negotiate meaningful operating covenants and audit rights, the earnout may be difficult to enforce in practice even if it is valid on paper.
• Have you modelled the tax and enforcement consequences? Contingent consideration raises questions about when the seller recognises income, whether withholding applies to non-resident sellers, and how a dispute would be resolved. These must be answered before signing, not after.

When earnouts are recommended versus alternatives

Prefer an earnout when future performance is genuinely uncertain and measurable, when the seller will stay involved (as management or founder), and when both sides can agree on a clear metric. Prefer a straightforward post-closing adjustment or working-capital true-up when the issue is the accuracy of the closing balance sheet. Prefer an escrow or holdback when the concern is indemnity exposure rather than performance. Many sophisticated Brazilian deals combine all three.

What is an earnout and how it works in Brazil

An earnout is a contractual arrangement under which part of the purchase price for a company or business becomes payable only if the target achieves defined performance targets during an agreed period after closing. In Brazilian practice it is a form of contingent consideration (preço contingente), structured as a conditional obligation governed by the general contract principles of the Código Civil (Lei nº 10.406/2002). Because Brazilian law gives wide latitude to freedom of contract, an earnout is enforceable provided its terms are lawful, sufficiently certain, and capable of objective measurement.

It is important to distinguish an earnout from two mechanisms it is often confused with. A post-closing adjustment in Brazil corrects the agreed price to reflect the actual financial position of the target at closing, typically a working-capital, net-debt or net-equity true-up measured against a reference balance sheet. It looks backward to closing. An earnout, by contrast, looks forward: it measures what the business does after closing. A holdback or escrow withholds part of an otherwise fixed price to secure the seller’s indemnity obligations; it is about credit risk, not performance. Confusing these three in drafting is a recurring and expensive error.

For earnouts in M&A Brazil involving listed targets, the Comissão de Valores Mobiliários (CVM) disclosure regime adds a further layer: material contingent-consideration arrangements may trigger disclosure obligations and require careful handling of inside information. The Lei das Sociedades por Ações (Lei nº 6.404/1976) also governs the corporate approvals needed to transfer shares or assets and the duties of directors who negotiate and later administer the earnout.

Common earnout forms used in Brazil

Four structures dominate Brazilian practice:

• Revenue-based. Payment is tied to gross or net revenue over one or more measurement periods. Revenue is harder to manipulate than profit and easier to verify, which reduces disputes, but it can over-reward top-line growth achieved at the expense of margin.
• EBITDA-based. Payment is tied to earnings before interest, taxes, depreciation and amortisation. This aligns the seller with profitability but invites fights over accounting adjustments, allocations of group costs, and management charges imposed by the buyer post-closing.
• Milestone-based. Payment is triggered by discrete events, regulatory approval, a product launch, retention of a key customer, or reaching a client threshold. Common in technology, pharma and infrastructure deals.
• Hybrid. A blend, for example, a revenue gate that unlocks an EBITDA-linked bonus, which lets the parties balance verifiability against alignment of incentives.

Key drafting principles for enforceable earnouts in Brazil

The enforceability of earnouts in Brazil turns far less on whether contingent consideration is permitted, it plainly is, and far more on whether the clause is drafted with enough precision that a court or arbitral tribunal can apply it without rewriting the bargain. The Código Civil requires that obligations be determinable and that the parties act in good faith (boa-fé objetiva) in performing and interpreting the contract. A well-drafted earnout agreement in Brazil leverages both: it leaves nothing material to be decided later, and it anticipates the good-faith arguments a disappointed party will raise.

Every enforceable earnout needs the same building blocks: a defined metric, a defined measurement period and date, a clear calculation method, a payment mechanism, a cap and (sometimes) a floor, covenants governing how the business is run during the earnout period, and audit and information rights. The sections below address each in turn, with drafting prompts you can adapt. Treat all sample language as a practitioner example, adapt to the specific fact pattern.

Metrics and definitions, drafting measurable KPIs

Ambiguous metrics are the leading cause of earnout litigation. The clause must define the performance measure exhaustively. If the metric is EBITDA, specify the accounting standard (Brazilian GAAP / CPC or IFRS), the exact line items included and excluded, and the treatment of non-recurring items, related-party charges, management fees, impairment, and changes in accounting policy. State explicitly whether the metric is measured on a standalone basis or after integration into the buyer’s group, this one point resolves a large share of disputes.

A workable drafting approach is to attach a worked example schedule showing how the metric is calculated from a sample income statement, together with a list of defined exclusions. This converts an abstract formula into something a court or arbitrator can verify. Where the metric is revenue, define revenue recognition rules and whether intercompany or discontinued-line revenue counts. Precision here is the cheapest insurance in the whole agreement.

Payment mechanics, timing and escrow

Specify the measurement date, the deadline for the buyer to deliver the earnout calculation statement, the seller’s window to object, and the deadline and currency for payment. Set out what happens on default, interest, monetary correction (correção monetária) and any acceleration. Parties frequently combine an earnout with an escrow so that a portion of the contingent amount, or amounts the seller may owe back on a true-up, is secured. Address currency expressly: in cross-border deals a payment denominated in reais but owed to a foreign seller carries exchange-rate exposure that should be allocated, not left to chance.

Representations, covenants and limitations on post-closing conduct

Because the buyer controls the business during the earnout period, the seller needs covenants constraining conduct that would depress the metric. Typical protections include commitments to operate in the ordinary course, to maintain agreed marketing or capital-expenditure levels, not to divert customers or revenue to affiliates, not to impose above-market management charges, and not to take extraordinary actions designed to suppress the earnout. The Código Civil’s good-faith duty supports these covenants: deliberately frustrating the condition can expose the buyer to liability even where a specific covenant is silent, but a disappointed seller is far better off with an express covenant than relying on general principles.

Include an anti-avoidance clause and consider a deemed-achievement provision if the buyer breaches a material operating covenant.

Audit, information rights and remedies for breach

An earnout without audit rights is a promise the seller cannot verify. Grant the seller reasonable access to the books, records and personnel relevant to the metric, the right to appoint an independent auditor at defined times, and a dispute mechanism that refers accounting disagreements to an independent expert (perito) whose determination is binding on quantum. Pair this with a clear remedy structure for breach of covenant, damages, deemed achievement, or acceleration. These remedies and audit rights are what make earnout clauses in Brazil enforceable in substance rather than merely in form.

Tax treatment of earnouts in Brazil (2026)

The tax treatment of earnouts in Brazil is one of the most important, and most frequently underestimated, parts of structuring contingent consideration. The core question is characterisation: is the earnout part of the sale price (and therefore taxed as capital gain or price on disposal) or is it something else, such as compensation for continued services, which would be taxed as income with very different consequences? Getting this wrong can convert favourable capital-gains treatment into ordinary income and payroll-type charges. Analysis must be grounded in the Código Tributário Nacional (Lei nº 5.172/1966) and current Receita Federal guidance, and tax and accounting advisers should be engaged before the term sheet is signed.

Tax timing, when is income recognised by the seller?

Under the Código Tributário Nacional, the taxable event (fato gerador) arises when the economic result occurs and the amount becomes legally due or definitively attributable to the seller. Because an earnout is contingent, a commonly taken practical position is that the earnout portion of the price is recognised and taxed when it becomes due, that is, when the performance condition is satisfied and the payment is determinable and payable, rather than at closing when the amount is still uncertain. This deferral is one of the attractions of earnouts for sellers, but it depends on the condition being genuinely contingent and must be confirmed against current Receita Federal guidance for the specific structure.

Where an earnout is characterised as part of the gain on sale of shares, capital-gains rules apply to the amount attributable to that period, at the rates in force under current legislation.

Corporate tax and withholding for non-residents

Where the seller is a non-resident, capital gains and certain payments sourced in Brazil may be subject to withholding at the rates set by current Brazilian legislation. The characterisation of the payment drives both the rate and whether withholding applies at all, and the position can be affected by any applicable double-tax treaty. For resident corporate sellers, the earnout receipt feeds into the corporate income tax (IRPJ) and social contribution (CSLL) base according to its characterisation. The practical takeaway is to model the after-tax proceeds under each plausible characterisation before agreeing the structure, and to confirm the withholding analysis for any foreign seller with current Receita Federal guidance and the relevant treaty.

Allocate responsibility for withholding, gross-up and tax filings expressly in the agreement.

Indirect taxes, ISS and municipal considerations

Indirect taxes rarely apply to a simple sale of shares, but they become relevant when the earnout is linked to services or when the transaction is structured as an asset or business deal. The Imposto Sobre Serviços (ISS), a municipal service tax, can arise if any component of the contingent payment is treated as remuneration for services rather than purchase price, which is a further reason to characterise the earnout cleanly as consideration for the sale. The Imposto sobre Circulação de Mercadorias e Serviços (ICMS), a state tax on the circulation of goods, is not usually triggered by a share sale but may be relevant in asset deals involving inventory.

Note that Brazil’s indirect tax system is undergoing a major transition under the consumption tax reform (notably the phased introduction of the IBS and CBS), so advisers should confirm the current position when structuring asset deals. The safest drafting practice is to separate any genuine service or earn-in arrangement from the price-contingency mechanism so that each is taxed correctly and the earnout is not re-characterised.

Common earnout disputes and practical prevention

Most earnout disputes in Brazil fall into predictable categories, and most can be prevented at the drafting stage. The recurring flashpoints are: disagreement over how the metric is calculated; accounting adjustments imposed by the buyer; allegations that the buyer manipulated operations or diverted revenue to suppress the earnout; the buyer’s failure to cooperate or provide information; fraud or misrepresentation about the target before closing; and, in cross-border deals, currency and tax disputes over the net amount actually received.

A practical prevention checklist addresses each risk directly: define the metric with a worked example; fix the accounting standard and freeze it against post-closing policy changes; impose ordinary-course and anti-diversion covenants; grant audit and information rights with a binding independent-expert mechanism for quantum; include an anti-avoidance clause invoking good faith; and allocate currency and tax risk expressly. The Código Civil’s good-faith principle gives sellers a backstop against deliberate frustration of the earnout condition, but it is a last line of defence, express covenants are far more reliable than general-principle litigation.

Case studies, illustrative examples

Consider three illustrative patterns common in Brazilian practice. In the first, a buyer integrated the target into its group and allocated substantial head-office management charges that pushed EBITDA below the earnout threshold; the dispute turned entirely on whether the agreement permitted those charges, and the seller prevailed only because the clause defined EBITDA on a standalone basis with no provision for group allocations. In the second, a buyer redirected a major client relationship to an affiliate after closing, depressing revenue; an anti-diversion covenant coupled with a deemed-achievement remedy resolved the matter without a full merits hearing.

In the third, a seller alleged the buyer withheld management accounts needed to verify the metric; the audit-rights clause, which entitled the seller to appoint an independent auditor, forced disclosure and defused the standoff. The common lesson is that the outcome was dictated by the quality of the earnout clauses agreed months earlier.

Dispute resolution, arbitration versus courts for earnouts in M&A Brazil

How you resolve an earnout dispute matters as much as how you draft the earnout. Brazilian M&A agreements overwhelmingly favour arbitration, and for good reason: arbitration under the Lei de Arbitragem (Lei nº 9.307/1996) offers confidentiality, specialised arbitrators who can grapple with accounting evidence, and awards that are enforceable through the courts. But arbitration is not always the right forum, urgent interim relief and insolvency scenarios can favour the state courts, whose procedures are governed by the Código de Processo Civil (Lei nº 13.105/2015).

Drafting arbitration clauses for earnouts

A robust arbitration clause for an earnout should specify the arbitral institution and rules, the seat (sede) of arbitration, the number of arbitrators, the language, and the governing law. Because earnout disputes are quantum-heavy, consider provisions allowing a technical expert or a tribunal-appointed accountant, and a bifurcation mechanism so that discrete accounting questions can be decided efficiently. Confirm that the clause expressly permits parties to seek urgent interim measures from a court before the tribunal is constituted, the Arbitration Act contemplates this, and failing to address it can leave a party exposed while the tribunal is being appointed.

When to prefer the courts

State courts are preferable where a party needs an immediate injunction to preserve assets or prevent dissipation before an arbitral tribunal exists, where insolvency of the counterparty is a live risk and the matter intersects with recovery proceedings, or where a non-signatory third party must be joined. Courts also provide the enforcement route for arbitral awards and for interim measures. In practice, the strongest agreements combine arbitration for the merits with an express carve-out allowing recourse to the courts for urgent provisional relief.

Practical drafting checklist and sample clause bank

Use the following ten-point checklist as a drafting discipline for any earnout agreement in Brazil. Each item corresponds to a dispute pattern above.

1. Define the performance metric exhaustively, with a worked example schedule.
2. Fix the accounting standard and freeze it against post-closing policy changes.
3. State whether the metric is measured standalone or post-integration.
4. Specify measurement periods, the measurement date and calculation deadlines.
5. Set a cap and, where appropriate, a floor or minimum.
6. Impose ordinary-course and anti-diversion operating covenants.
7. Include an anti-avoidance clause invoking the good-faith duty.
8. Grant audit and information rights with an independent-expert mechanism for quantum.
9. Allocate currency, withholding and tax-filing responsibilities expressly.
10. Choose the dispute-resolution forum and carve out urgent interim relief.

Sample clause 1, revenue-based earnout (practitioner example, adapt to facts): “If the Net Revenue of the Company for the Earnout Period equals or exceeds the Revenue Target, the Buyer shall pay the Seller an Earnout Amount calculated as [X]% of Net Revenue in excess of the Threshold, up to the Earnout Cap, within [__] days after delivery of the audited Earnout Statement. ‘Net Revenue’ means revenue recognised under [CPC/IFRS], excluding intercompany revenue and the items listed in Schedule [__].”

Sample clause 2, EBITDA-adjusted earnout with audit right (practitioner example, adapt to facts): “The Earnout Amount shall be based on Adjusted EBITDA for each Measurement Period, measured on a standalone basis and excluding management charges, group allocations and non-recurring items as defined in Schedule [__]. The Seller may, within [__] days of receiving the Earnout Statement, appoint an independent auditor to review the calculation; any dispute as to quantum shall be referred to an Independent Expert whose determination shall be final and binding.”

Negotiation tips for buyers and sellers

Buyers should push for a verifiable metric (often revenue), a clear cap, and freedom to run the business commercially. Sellers should push for standalone measurement, operating covenants, robust audit rights, and a deemed-achievement remedy for covenant breach. Both sides benefit from a worked example and an independent-expert mechanism, which together remove most of the ambiguity that fuels litigation.

Implementation and post-closing governance

An earnout does not end at signing, it has to be administered for months or years. Build the governance into the agreement. Agree reporting templates and a cadence for delivering management accounts that map directly to the metric. Consider a governance or monitoring committee with representation from both sides to review performance and raise concerns early, before they harden into disputes. Define carve-outs for extraordinary events, force majeure, major acquisitions or disposals, or regulatory change, so that neither party is unfairly advantaged by events outside normal operations. Finally, confirm who is responsible for tax filings and withholdings on each earnout payment and document it, so there is no scramble when the first instalment falls due.

Recordkeeping and audit procedures

Maintain contemporaneous records that tie the business’s financial statements to the earnout calculation, and preserve them for the full earnout period plus any limitation window. Agree in advance the scope of the seller’s audit, who may access what, how often, and at whose cost. Clear recordkeeping turns a potential dispute into a verification exercise.

Conclusion, negotiation roadmap for earnouts in M&A Brazil

Earnouts in M&A Brazil are a powerful tool for bridging valuation gaps in an uncertain 2026 market, but they reward discipline and punish vagueness. Engage tax and accounting advisers before the term sheet so characterisation, timing and withholding are modelled early; define the metric exhaustively with a worked example; protect the seller with operating covenants, anti-avoidance language and audit rights; and choose a dispute-resolution forum deliberately, carving out urgent court relief alongside arbitration. Do those four things and the earnout will do its job, aligning price with performance, rather than becoming the next dispute on your docket.

This article is general information and not legal advice. Contingent-consideration structures are fact-specific and depend on current statutes, Receita Federal guidance and judicial interpretation; obtain tailored advice from a Brazil-licensed M&A lawyer and a Brazilian tax specialist before acting.

Sources

1. Brazilian Civil Code (Lei nº 10.406/2002)
2. Lei das Sociedades por Ações (Law No. 6.404/1976)
3. Código Tributário Nacional (Law No. 5.172/1966)
4. Receita Federal (Brazilian Federal Revenue)
5. Arbitration Act (Lei de Arbitragem, Law No. 9.307/1996)
6. Código de Processo Civil (Law No. 13.105/2015)
7. Comissão de Valores Mobiliários (CVM)
8. Superior Tribunal de Justiça (STJ)
9. Ordem dos Advogados do Brasil (OAB)
10. Fundação Getulio Vargas, FGV Direito