How the DGT's position has evolved
Current position
Compensations from preferred shares agreements are considered returns on movable capital within the savings base, calculated as the difference between the amount received and the acquisition value. Legal interest derived from nullity is compensatory in nature and is taxed as capital gains. It is possible to opt for the special treatment of the forty-fourth additional provision of the LIRPF (Personal Income Tax Law) to avoid tax effects in the conversion of securities.
The DGT's position remains constant in classifying compensations as returns on movable capital. The nature of legal interest derived from nullity has been specified, distinguishing it from returns by being considered capital gains. Likewise, the applicability of the special regime under the forty-fourth additional provision of the LIRPF has been confirmed.
Turning points
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Establishes that legal interest due to nullity is compensatory in nature and is taxed as capital gains within the savings base.
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Confirms the option for the special treatment of the forty-fourth additional provision of the LIRPF, where the conversion of securities has no tax effects.
Analysis based on 30 of 30 rulings with a stated position. Updated 24 September 2026.