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V1650-25 15 September 2025 · SG de Impuestos Patrimoniales, Tasas y Precios Públicos Criterion in force
ISD · parentesco

No legal kinship bars tax relief for familial relationships

A consultant asks whether an affective and caregiving relationship resembling a daughter entitles them to tax reductions under Groups II or III of the Inheritance Tax. The DGT replies that such a relationship does not constitute legal kinship and that the taxpayer must be treated as a stranger.

The question raised

Question posed: Whether the petitioner could be considered integrated into Group II or III of Article 20.2 of the LISD by virtue of the consolidated socio-affective bond with the deceased, comparable to a daughter de facto, for the purposes of applying the tax reductions provided for direct family members.

The DGT's ruling

The Inheritance and Gift Tax regulations do not contain special rules regarding kinship; therefore, the Civil Code applies subsidiarily. The socio-affective bond does not confer any degree of kinship with the deceased. Consequently, the petitioner must be considered a stranger and belong to Group IV, without entitlement to the reductions applicable to direct family members. Analogy is not admissible to extend tax benefits beyond their strict terms.

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