Assignment prohibition clauses and transfer restrictions

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During legal due diligence for an M&A transaction, reviewers examine commercial contracts one by one to identify assignment restrictions and change-of-control clauses. The resulting list often becomes the roster of counterparties whose consent is required before closing. If even a single counterparty withholds consent, the parties may face delays or have to restructure the deal. A restriction that received little attention when the contract was signed can suddenly become a major hurdle once an acquisition, business transfer, or financing is underway.

What the clause actually restricts

An assignment prohibition clause generally bars a party from transferring its contractual position, or its rights and obligations under the agreement, to a third party without counterparty consent. Review requires distinguishing among transfers of contractual status, assignments of receivables, and corporate reorganizations. A corporate split involves statutory succession under corporate law and should not be treated like an ordinary contractual assignment. While these restrictions protect parties who contracted based on counterparty identity, an overly broad clause can restrict ordinary financing, internal reorganizations, or future M&A. The core task during review is deciding what belongs within the restriction, negotiating sensible carve-outs, and checking the contractual consequences of an unapproved transfer, as some agreements treat unauthorized assignment as immediate grounds for termination.

Contractual status versus receivables

Transferring contractual status moves the full bundle of contractual rights and obligations to a third party, replacing the contracting party itself, as when a service provider substitutes another firm to perform the contract. In contrast, assigning a receivable transfers only a monetary claim, such as selling an account receivable to a bank or factoring provider, while the party providing the service remains unchanged. Because the impact on the counterparty is fundamentally different, drafting should distinguish between the two rather than combining them into a single restriction.

For trade receivables, Article 466(2) and (3) of the Civil Code generally upholds the validity of an assignment even if the contract restricts transfer, while permitting the obligor to refuse performance to an assignee who knew of the restriction or was grossly negligent in not knowing. Article 466(4) limits that refusal right if the assignee sets a reasonable grace period for payment to the assignor and the obligor still fails to pay. Deposit claims follow a separate regime under Article 466-5, and statutory perfection requirements to assert the assignment against the obligor or third parties must be addressed separately. Contract terms alone do not determine whether an assignment takes effect, as statutory rules govern the outcome. For businesses relying on receivables financing or factoring, a blanket prohibition on assigning claims or granting security interests can restrict liquidity, since early monetization requires a legally effective transfer.

How the clause plays out in a deal

Deal structure dictates how these provisions operate in practice. In a share purchase, the contracting legal entity remains the same, so general assignment restrictions rarely apply directly, though change-of-control clauses may be triggered depending on how they are defined. A business transfer transferring contractual status generally requires counterparty consent under Article 539-2 of the Civil Code. Conversely, a corporate split involves universal statutory succession under the Companies Act, meaning any clause that purports to restrict splits or grant termination rights requires separate legal assessment. Similar questions arise during internal reorganizations, such as shifting operations to an affiliate or engaging a new vendor, where assignment restrictions and subcontracting terms must be examined in tandem.

Preparing before the deal, not during it

Maintaining a contract ledger that tracks assignment and change-of-control provisions across key agreements helps identify required consent steps before a deal. Negotiating practical consent mechanisms or carve-outs for affiliate transfers and corporate reorganizations at the signing stage can expose constraints before due diligence, when obtaining counterparty consent, amending contract terms, or restructuring the transaction can cause costly delays.