In March 2018, the European Commission issued its proposal for a regulation on the law applicable to third-party effects of assignments of claims, aiming to put an end to the ongoing debate on this issue and the legal uncertainty associated with it. On the basis of the Commission’s decision in favour of the application of the law of the assignor’s habitual residence, this article discusses the consequences of the Proposal under European Union (EU) insolvency law. For that purpose, the coherence of the Proposal with the Insolvency Regulation will be examined, first in general and then in more detail. [---]