How the DGT's position has evolved
Current position
Mergers of wholly owned subsidiaries may benefit from the tax neutrality regime under Chapter VII of Title VII of the LIS (Corporate Income Tax Law) if they are carried out for commercial purposes pursuant to Law 3/2009 and comply with article 76.1.c). Under this regime, income derived from the transfer or cancellation of the participation in improper mergers is not recognized, and assets maintain their tax value and seniority. The regime is denied if the primary objective is fraud, evasion, or the mere obtaining of a tax advantage without valid economic reasons.
The DGT's position has remained constant since 2014, always requiring compliance with Law 3/2009 and the absence of fraudulent purposes. The doctrine has reiterated that simplification, efficiency, and the rationalization of activities constitute valid economic reasons. No changes in criterion have been observed, but rather a systematic confirmation of the requirements of the LIS and the Business Restructuring Law.
Analysis based on 34 of 35 rulings with a stated position. Updated 23 September 2026.