How the DGT's position has evolved
Current position
The provision of services of a different nature, such as the supply of audiobooks or the licensing of e-books, are considered independent operations and not ancillary to telecommunications services. When services of various natures are offered for a single price, the tax base of each is determined in proportion to its market value. In the case of books and audiobooks, the reduced tax rate of 4 percent applies.
The DGT has maintained a consistent line in identifying independent provisions, applying it both to insurance in renting/leasing contracts and to catering or translation services. Recently, the doctrine has extended to digital services, confirming that digital content (books and audiobooks) is an autonomous provision compared to telephony. The evolution shows a systematic application of the independence criterion when the service serves a specific purpose for the client.
Turning points
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Establishes that insurance in leasing is an independent provision if the lessee has the power to choose their own insurance company.
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Determines that the licensing of an e-book is not ancillary to the telephony service, as it constitutes an end in itself for the client.
Analysis based on 10 of 10 rulings with a stated position. Updated 28 September 2026.