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Functional Unit: DGT doctrinal evolution

How the DGT's position on this topic has evolved, and the rulings it rests on.

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How the DGT's position has evolved

Stable position High confidence 10 rulings · 2014–2024

Current position

To apply the reduced rate of 4%, complementary elements must constitute a functional unit with the book, perfecting or completing its content. These elements must be ancillary to the main product and not an end in themselves. If the accessories do not form part of an indivisible functional unit, they must be taxed at the general rate of 21% according to their market value.

The DGT maintains a consistent position regarding the need for accessories to form a functional unit with the book to apply the 4% rate. Although it has analyzed various products (trading cards, photos, consoles, manuals), the criterion focuses on whether the accessory is a means to better enjoy the main product or an independent end. No change in doctrine is observed, but rather a repeated application of the concept of functional unit to different media.

Turning points

  1. V0626-14

    Establishes that complementary elements must constitute a functional unit with the book to apply the 4%, specifically excluding fold-outs, figures, or pop-ups.

  2. V0218-19

    Extends the application of the 4% rate to the set when access to audiovisual content and forums acts as a means to complement the physical material.

Analysis based on 10 of 10 rulings with a stated position. Updated 28 September 2026.

Rulings on this topic

10
V2654-16 14 Jun 2016

Photo developing in book or album format subject to 21% VAT

SG de Impuestos sobre el Consumo
tipo impositivorevelado fotográficotipo reducidoservicios prestados por vía electrónicaprestación accesoria LIVA — Ley 37/1992 del IVA art. 69.tres-4ºLIVA — Ley 37/1992 del IVA art. 90.1
Affects CompanyExpat · Non-residentIndividual
V0626-14 7 Mar 2014

Book accessories such as pop-ups or 3D figures subject to 21% VAT

SG de Impuestos sobre el Consumo
tipo impositivoelementos complementariosunidad funcionalbase imponiblevalor de mercado LIVA — Ley 37/1992 del IVA art. 78LIVA — Ley 37/1992 del IVA art. 79.2
Affects CompanyExpat · Non-residentIndividual

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