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Water 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 27 rulings · 2014–2026

Current position

The supply of water suitable for human or animal consumption or irrigation is taxed at the reduced rate of 10%, regardless of the actual use made by the purchaser. Water treatment services for non-consumption uses (such as decalcification or dechlorination) are not considered a supply and are taxed at the general rate of 21%. The levy for the improvement of hydraulic infrastructures is not subject to IVA.

The DGT's position remains constant regarding the VAT liability of the integrated water cycle and the application of the 10% reduced rate for water suitable for consumption or irrigation. The limits of the reduced rate have been specified, excluding installation works and specific treatment services. A change in criterion has occurred regarding the non-liability of the infrastructure improvement levy.

Turning points

  1. V0447-17

    Clarifies that the 10% reduced rate does not apply to installation works for distributors or connections, which are taxed at the general rate of 21%.

  2. V0500-22

    Establishes that the levy for the improvement of hydraulic infrastructures is not subject to IVA, reversing the previous criterion of ruling V0939-11.

  3. V0834-26

    Determines that the 10% reduced rate applies according to the suitability of the water and not by actual use, and excludes decalcification or dechlorination services from the concept of supply.

Analysis based on 26 of 27 rulings with a stated position. Updated 24 September 2026.

Rulings on this topic

24
V0834-26 17 Apr 2026

Water supply and treatment VAT rates clarified

SG de Impuestos sobre el Consumo
suministro de aguatipo reducidotipo generaltratamiento de aguaaptitud para consumo humano LIVA — Ley 37/1992 del IVA art. 4.unoLIVA — Ley 37/1992 del IVA art. 4.dos
Affects CompanyExpat · Non-residentIndividual
V2305-25 26 Nov 2025

Water supply contract fee may be subject to general 21% VAT rate

SG de Impuestos sobre el Consumo
tipo impositivocuota de contrataciónsuministro de aguatipo reducidotipo general LIVA — Ley 37/1992 del IVA art. 4.UnoLIVA — Ley 37/1992 del IVA art. 4.Dos
Affects CompanyExpat · Non-residentIndividual
V2195-17 22 Aug 2017

Water supply management classified under headings 161.2 and 161.4 of the IAE

SG de Tributos Locales
impuesto sobre actividades económicascaptación de aguadistribución de aguaepígrafes del iaesuministro de agua Tarifas del IAE — RDLeg 1175/1990 art. regla 2ªTarifas del IAE — RDLeg 1175/1990 art. regla 4ª.1
Affects CompanyExpat · Non-residentIndividual
V0447-17 20 Feb 2017

Installation of water tanks and connections subject to 21% VAT

SG de Impuestos sobre el Consumo
tipo impositivotipo reducidoobras de instalaciónsuministro de aguaempresario LIVA — Ley 37/1992 del IVA art. 4.UnoLIVA — Ley 37/1992 del IVA art. 5.Uno-a)
Affects CompanyExpat · Non-residentIndividual

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