The Supreme Court Changes the Rules on the Right of Transmission: Key Points of a Ruling with Implications for Inheritance

In light of the change in legal doctrine introduced by the recent ruling of the Plenary Session of the First Chamber of the Supreme Court, No. 849/2026, dated June 3, regarding the right of transfer governed by Article 1006 of the Civil Code, Susana Perales, director of the Litigation and Arbitration practice area, analyzes the scope of this shift in case law, which departs from the doctrine established since 2013 to reinstate the so-called classical theory or theory of double transfer. In this regard, she notes that the ruling “reopens a debate that many considered definitively resolved” and highlights its significant implications for succession practice.

It also explains that the new doctrine holds that, when a person dies without having accepted or renounced an inheritance, the right to inherit becomes part of the person’s own estate before being transferred to his or her heirs. In this regard, he notes that the Supreme Court has returned to an interpretation “more in line with the structure of the succession process and with the protection of the various interests involved,” which requires a reevaluation of the identification of interested parties in a succession, the protection of statutory inheritance rights, and the structuring of partition proceedings.

For this reason, he warns of the significant practical consequences this change will have for attorneys, notaries, registrars, and estate planning advisors, both in estate planning and in the procedural strategy for inheritance proceedings. He also points out the potential tax implications arising from the new legal doctrine and highlights the importance of obtaining appropriate specialized legal advice in light of a ruling that is set to shape Spanish estate planning practice in the coming years.