How the DGT's position has evolved
Current position
Economic supplements for deferred retirement received as a lump sum are considered income from employment. For these cases, the reduction for notoriously irregular income under Article 18.2 of the Personal Income Tax Law (LIRPF) does not apply; instead, the 30% reduction provided for in Article 18.3 LIRPF for receipt as a lump sum applies. Compensatory pensions replaced by a single payment maintain their classification as income from employment with a notoriously irregular character.
The DGT's position has moved from applying the reduction for notoriously irregular income (40%) in cases of pension substitution, to specifically distinguishing the treatment of deferred retirement supplements. In the latter, the DGT has clarified that Article 18.2 does not apply, but rather the specific reduction of Article 18.3 LIRPF for benefits received as a lump sum.
Turning points
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Establishes that the deferred retirement supplement does not allow for the reduction for notoriously irregular income, but rather the reduction under Article 18.3 LIRPF for being received as a lump sum.
Analysis based on 50 of 50 rulings with a stated position. Updated 23 September 2026.