Spanish inheritance laws and Supreme Court tax rulings

Spanish succession laws and recent judicial rulings have clarified the rights of heirs and their tax obligations. Under current legislation, a surviving spouse may not inherit full ownership of assets if a will does not establish a clear division, especially when forced heirs such as children or ascendants are present. In cases where children exist, the surviving spouse typically acquires only the usufruct of the 'improvement third' (tercio de mejora), allowing them to use the assets without the right to sell or freely dispose of them.

Additionally, the Spanish Supreme Court has ruled on the taxation of dormant estates (herencias yacentes). The Court clarified that income generated by an estate before its formal acceptance must be attributed to the designated heirs for Personal Income Tax (IRPF) purposes. This ensures that even if a will imposes delays or conditions on the transfer of assets, the tax obligations for any income produced during the waiting period are assigned to the named heirs to prevent a tax vacuum.