How the DGT's position has evolved
Current position
The execution of work requires obtaining a material result distinct from the elements used, whether through the delivery of goods or the provision of services. To apply the reduced rate of 10% in repairs or renovations of buildings intended for housing, the cost of materials must not exceed 40% of the taxable base. Periodic maintenance operations are always considered provisions of services with the general rate of 21%. The reverse charge mechanism (inversion del sujeto pasivo) applies when the recipient is a business owner and the work is carried out in construction, rehabilitation, or urbanization processes.
The DGT's position remains constant regarding the distinction between periodic maintenance (21%) and the execution of work (10% or reverse charge). Throughout the rulings, it has been reiterated that the execution of work requires obtaining a good distinct from the materials employed. No changes in criterion are observed, but rather a uniform application of the requirements of materiality and periodicity.
Turning points
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Defines that the execution of work implies obtaining a good distinct from those used for its performance, excluding technical assistance services or studies.
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Clarifies that the execution of work can be classified as both a delivery of goods and a provision of services, provided that a distinct material result is obtained.
Analysis based on 8 of 8 rulings with a stated position. Updated 2 October 2026.