How the DGT's position has evolved
Current position
The pro rata rule applies when the taxable person simultaneously carries out taxable transactions (including those at a 0% rate) and exempt or non-taxable transactions. The pro rata rule does not apply if the activities belong to differentiated sectors with deduction differences exceeding 50 percentage points. If only exempt or non-taxable transactions are carried out, there is no right to deduction nor application of the pro rata rule.
The DGT's position remains constant regarding the application of the pro rata rule in the coexistence of taxable and exempt transactions. The analyzed rulings do not show a doctrinal change, but rather apply the criterion to various scenarios such as catering services, association activities, or professional services. The doctrine is limited to confirming the cases of application and the exceptions for differentiated sectors.
Turning points
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Establishes that if the deduction percentages of activities other than the main one differ by more than 50 percentage points, they are considered differentiated sectors and the pro rata rule does not apply.
Analysis based on 7 of 8 rulings with a stated position. Updated 1 October 2026.