by Marie De Tollenaere
Since 1 January 2026, new rules governing personal securities have come into force. In particular, in the context of acquisitions (M&A transactions), financing arrangements, and shareholder structures, it is important to assess the impact of these changes on existing and future suretyships.
Since 1 January 2026, new rules on personal securities apply under the new Civil Code.
Suretyships for future obligations now have a statutory basis, indefinite-term suretyships may be terminated, and an explicit regime of joint and several liability applies where multiple sureties are involved.
In addition, a suretyship no longer automatically extends to the debts of legal successors following a restructuring unless this is expressly provided for contractually.
The consumer surety regime has also been reformed. Individuals who exercise substantial influence over a company, such as directors and controlling shareholders, may in principle not rely on this protective regime.
The new legislation therefore makes it advisable to critically review existing and future financing, M&A, and security documentation.
With the entry into force of Title 1 of Book 9 of the new Civil Code, the framework governing personal securities has undergone a significant update. Whereas the former legislation primarily focused on gratuitous sureties, the new framework now provides a statutory basis for various forms of security that had previously been developed mainly through case law and legal doctrine.
At the same time, a broad degree of contractual freedom remains, as most of the new provisions are default rules.
In the context of M&A transactions, it is advisable to consider the principal changes and their practical implications. The most important developments are outlined below.
A suretyship may now expressly be granted in respect of future obligations. Although this was already accepted in practice, it is now formally embedded in legislation.
Several important conditions apply:
the guaranteed obligations must be sufficiently ascertainable at the time the suretyship is entered into;
the surety is protected by a maximum amount (in the absence of such a limit, the suretyship only covers obligations existing at the time of execution);
the guaranteed obligations must be connected to the contractual relationship between the creditor and the debtor.
As a general rule, the surety is therefore not liable for claims arising from a different legal basis, such as tortious liability.
The law now also introduces a specific regime for indefinite-term suretyships.
The underlying principle remains that no person may bind themselves for an unlimited period. Consequently, an indefinite-term suretyship may generally be terminated at any time, subject to a reasonable notice period.
After the expiry of that notice period, the surety remains liable for existing obligations but not for new debts arising thereafter.
Where several persons act as sureties for the same debt, they are regarded vis-à-vis the creditor as jointly and severally liable debtors within the limits of their respective undertakings.
This means that each surety may be held liable for the full amount owed.
However, the subsidiary nature of suretyship remains intact. The creditor must first pursue and formally notify the principal debtor. Only if payment is not made may the creditor seek recovery from one or more sureties.
Under the new law, a suretyship no longer automatically extends to the debts of legal successors following a merger, demerger, or transfer of business activities. Such an extension is possible only if it has been expressly provided for in the contract.
This prevents a surety from unexpectedly becoming liable for the debts of a successor entity without any prior agreement to that effect.
Companies that regularly engage in acquisitions, reorganisations, or group restructurings should therefore critically review their existing suretyship arrangements.
In practice, it will be important to assess suretyship agreements against the considerations outlined above, to the extent that they fall under the new legal framework. As noted, many of the new provisions may be contractually varied, while other agreements remain governed by the previous legal regime.
In addition to the general suretyship regime, the former “gratuitous surety” has been re-regulated under the designation of consumer surety. The protective rules applicable to consumer sureties are mandatory in nature and cannot be contractually excluded.
The key question is whether the provider of the personal security qualifies as a “consumer.” The Code of Economic Law defines a consumer as “any natural person acting for purposes outside their trade, business, craft, or professional activity.”
The decisive factor is the status of the security provider at the moment the security is granted.
In an M&A context, the question arises whether individuals who are directors or shareholders of a company and who provide sureties for its debts may rely on consumer surety protection.
Under the new law, a security provider who exercises substantial influence over the decision-making of the principal debtor is expressly excluded from the scope of the consumer surety regime.
For the interpretation of the concept of “substantial influence,” reference is made to the concept of “control” under the Belgian Code of Companies and Associations. This suggests that directors and shareholders of the principal debtor generally fall outside the scope of the consumer surety regime.
In practice, consumer surety protection will therefore play only a limited role in suretyships granted by corporate insiders.
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Marie De Tollenaere
Advisor Legal marie.detollenaere@vdl.be
Disclaimer
In our opinions, we rely on current legislation, interpretations and legal doctrine. This does not prevent the administration from disputing them or from changing existing interpretations.
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