Tax Liability When Buying a Business: How to Avoid Inheriting Hidden Debts

This page is a translation of the original Portuguese text, provided for convenience. It deals with Brazilian law. If there is any discrepancy, the Portuguese version prevails. Read the original in Portuguese

As a general rule, buying a business means inheriting the tax debts the previous owner left behind. Article 133 of Brazil’s National Tax Code (Código Tributário Nacional) makes the buyer liable for the taxes attached to the fundo de comércio (the business’s assets and goodwill) it acquires. Only a careful tax audit, combined with clearance certificates obtained at closing, protects the buyer from paying debts it never created.

What Article 133 of Brazil’s National Tax Code (CTN) Actually Transfers to the Buyer

The provision applies to anyone who acquires, by any means, the fundo de comércio or a commercial, industrial, or professional establishment and continues to operate the business. Continuity is the trigger for liability. If you buy the location, the customer base, the name, and the productive structure, and you keep operating, you take on the taxes owed by that unit up to the date of the deal.

The law distinguishes between two situations with very different consequences. If the seller stops all economic activity, the buyer is fully liable for the establishment’s tax debts. If the seller remains in business, or starts a new business within six months, the buyer’s liability is secondary.

Under full liability, the tax authorities can collect directly from the new owner without first exhausting the former owner’s assets. Under secondary liability, the buyer can be pursued only after collection against the seller has failed. That difference determines who bears the economic risk of the transaction, and it deserves extra attention when you structure the purchase.

Why a Tax Audit Must Come Before Any Closing

Tax liabilities rarely appear on the balance sheet as clearly as a buyer imagines. There are installment-plan debts, tax assessments under dispute, taxes that were reported but never paid, social security contributions, and state and municipal issues that pile up with no immediate visibility. The tax audit, known in the market as due diligence, exists precisely to uncover these hidden liabilities.

The review should cover federal, state, and municipal taxes, as well as ancillary obligations. It includes checking certificates at all three levels of government, analyzing pending administrative and judicial proceedings, verifying special tax regimes, and reviewing any open installment plans. Each of these areas reveals a different layer of risk that the price of the deal needs to reflect.

Without this diagnosis, the buyer negotiates blind. The liability comes to light only when the first collection notice arrives in the buyer’s name, by which point the chance to renegotiate the price, demand guarantees, or walk away has already been lost. The audit turns uncertainty into numbers, and numbers are what support a rational negotiation.

There are installment-plan debts, tax assessments under dispute, taxes that were reported but never paid, social security contributions, and state and municipal issues that pile up with no immediate visibility.

The Clearance Certificate as a Condition of the Deal

A clearance certificate showing no outstanding debts (certidão negativa de débitos), or a certificate showing debts that has the effect of a clearance certificate, works as a snapshot of the tax situation at the moment of closing. Requiring it as a contractual condition is no longer a formality but a protective tool. A prudent buyer makes payment conditional on receiving up-to-date certificates from all three levels of government.

Beyond simply delivering the certificates, the contract should state what happens if they reveal open issues. Holding back part of the price, escrow, collateral or personal guarantees, and adjustment clauses are all possible responses. The certificate provides information; it is the contract that allocates the risk between the parties in a legally effective way.

Keep in mind that being in good standing at closing does not shield the buyer from debts assessed later that relate to earlier taxable events. That is why holdbacks usually run for a period long enough to cover the assessment and collection of those claims.

Negotiations become more balanced once the buyer understands one central point.

This understanding reorders priorities. Before debating sophisticated contractual guarantees, the buyer secures the tax snapshot and ties payment to it. The legal engineering comes afterward, to cover what the certificate cannot reach.

Bankruptcy and Judicial Reorganization Rule Out Succession

Complementary Law 118 of 2005 introduced important exceptions to Article 133. Successor liability does not apply to an acquisition made through a judicial sale in bankruptcy proceedings, or to the purchase of a branch or an isolated productive unit in judicial reorganization proceedings. The purpose is clear: to preserve the value of a company in crisis and to encourage bidders.

Without this protection, no one would bid on the assets of a bankrupt company or one in reorganization, because they would be buying a potentially unpayable tax liability along with them. The exception turns the asset into something that can be sold and maximizes recovery for creditors. The logic is that a productive unit is worth more clean than scrapped.

This protection, however, has strict limits. It does not cover a buyer who is a partner in the bankrupt company or the company in reorganization, a relative of the debtor or its partners up to the fourth degree, or an agent of the debtor acting to defraud the succession. Once such a maneuver is identified, tax liability returns to the buyer in full.

The Liability Period and Why a Contractual Waiver Doesn’t Help

The buyer’s liability covers the taxes relating to the establishment that were due up to the date of the transaction, even if they are assessed later. The tax authorities may assess and collect until the periods of decadência (the time limit to assess a tax) and prescrição (the time limit to collect it) expire, and these run separately for each tax. That is why a liability can surface years after the purchase.

This gap explains why holdbacks and guarantees need an extended term. Ending the protection on the day of closing ignores the fact that the risk continues over time. An attentive buyer sizes the guarantee to the real duration of the exposure, not to the signing date.

There is a common mistake that deserves a firm correction. A clause in which the seller assumes all the tax liabilities does not bind the tax authorities. Under the National Tax Code itself, private agreements on responsibility for paying taxes cannot be asserted against the public treasury to change the legal definition of the taxpayer.

That does not make the clause useless between the parties. It gives the buyer a right of recourse against the seller: the buyer pays the tax to the authorities and then seeks reimbursement from the party who assumed the obligation in the contract. The practical problem is the seller’s solvency at the time of recourse, which is often compromised. Collateral or a holdback solves what the contractual promise alone does not.

Frequently Asked Questions

I bought only a company’s equipment, without the location or the customer base. Am I liable for its taxes?

Liability under Article 133 presupposes the acquisition of the fundo de comércio or establishment and the continuation of the same activity. Buying assets in isolation, without the whole that makes up the economic unit and without continuing the business, generally does not give rise to tax succession. The analysis depends on the concrete facts of the deal, especially what was actually transferred and whether the same activity was resumed at the same location.

Does a clearance certificate at closing protect me from any future collection?

Not absolutely. The certificate reflects the situation known at that moment, but the tax authorities can still assess claims relating to earlier taxable events, within the decadência and prescrição periods. That is why the certificate should be accompanied by a holdback of part of the price or by guarantees with a term matching the exposure. The tax snapshot is indispensable, but it does not replace the protective structure that covers liabilities not yet revealed.

Can I shift all the tax risk to the seller through a contract clause?

Between buyer and seller, yes: the clause is valid and creates a right of recourse. Against the tax authorities, no. Private agreements on tax liability cannot be asserted against the public treasury to change who the law defines as the responsible party. In practice, the buyer remains exposed to collection and depends on the seller’s solvency to recover what it paid. Collateral or a holdback is what gives the transaction real security.

As informações deste artigo são de caráter informativo e não substituem consulta jurídica individualizada. Cada caso possui particularidades que exigem análise específica.