How the DGT's position has evolved
Current position
The 40% reduction provided for in the twelfth transitional provision of the IRPF (Personal Income Tax) applies to pension plan benefits received as a lump sum that correspond to contributions made until December 31, 2006. This reduction must be applied in the tax year the contingency occurs or in the following two years. For the calculation of withholding tax, the total amount must be reduced by said reduction, although the resulting rate is applied to the total benefit received.
The DGT's position remains constant regarding the requirements for applying the reduction for contributions made prior to 2007. The evolution focuses on precision regarding the moment the retirement contingency occurs to compute the legal timeframes. No changes in the substance of the criterion are observed, but rather greater specificity in technical and temporal application.
Turning points
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Clarifies that seniority back pay is not by default a case of notoriously irregular income, requiring proof of a generation period exceeding two years to apply the reduction.
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Specifies that the retirement contingency occurs upon effectively accessing retirement, thereby determining the timeframe for applying the transitional regime.
Analysis based on 22 of 24 rulings with a stated position. Updated 24 September 2026.