How the DGT's position has evolved
Current position
Units in different investment funds are not considered homogeneous securities, even if they replicate the same benchmark index. This prevents the application of the rules for offsetting losses from homogeneous securities under Article 33.5 of the Personal Income Tax Law (LIRPF). The management of financial analysis expenses by management companies is exempt from VAT (IVA). The offsetting of capital losses follows the legal order of offsetting against gains from the same period and then against income from movable capital.
The DGT's position does not show a single doctrinal evolution, as the rulings address different matters such as Transfer Tax (ITP), Personal Income Tax (IRPF), VAT (IVA), or the protected assets regime. There is no change of criterion regarding a single concept, but rather a dispersion of technical applications across different taxes. The latest ruling establishes a relevant technical distinction regarding the lack of homogeneity between different funds.
Turning points
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Establishes that units in different funds are not homogeneous securities even if they replicate the same index, limiting the application of Article 33.5 of the LIRPF.
Analysis based on 18 of 19 rulings with a stated position. Updated 25 September 2026.