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Main Supply — 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

Settled doctrine High confidence 53 rulings · 2014–2026

Current position

A supply is ancillary to the main supply when it does not constitute an end in itself for the customer and follows the taxation regime of the main supply. The service of a ham slicer is ancillary to the delivery of ham legs, with both being taxed at the reduced rate of 10%. For a supply to be independent, it must represent an end in itself for the recipient.

The DGT maintains a consistent position on ancillarity based on the purpose for the customer. Throughout the rulings, it is confirmed that services that are not an end in themselves share the treatment of the main supply, whether in training, logistics, books, or food products. No changes in criterion are observed, but rather the application of the same principle to different sectors.

Analysis based on 52 of 53 rulings with a stated position. Updated 23 September 2026.

Rulings on this topic

24
V0702-26 30 Mar 2026

Transport of feed may be taxed at 10% if accessory to main delivery

SG de Impuestos sobre el Consumo
prestación accesoriaprestación principalbase imponibletipo impositivo reducidooperación única LIVA — Ley 37/1992 del IVA art. 4.1LIVA — Ley 37/1992 del IVA art. 5.1
Affects CompanyExpat · Non-residentIndividual
V1632-24 5 Jul 2024

Reduced 10% VAT rate applies to party events with ancillary services

SG de Impuestos sobre el Consumo
tipo impositivo reducidoprestación principalprestación accesoriaservicios de hosteleríaservicios recreativos LIVA — Ley 37/1992 del IVA art. 4LIVA — Ley 37/1992 del IVA art. 5
Affects CompanyExpat · Non-residentIndividual
V0520-21 9 Mar 2021

VAT rates for rat control: 10% for sewers and 21% for buildings

SG de Impuestos sobre el Consumo
tipo impositivo reducidoprestación accesoriaprestación principaldesratizaciónalcantarillado público LIVA — Ley 37/1992 del IVA art. 4.unoLIVA — Ley 37/1992 del IVA art. 4.dos
Affects CompanyExpat · Non-residentIndividual

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