Tax neutrality in the merger by absorption of wholly-owned subsidiaries

Corporate reorganizations are common tools used to optimize the structure of business groups. One of the most frequent operations is the merger by absorption of a subsidiary by its parent company, a maneuver that seeks operational efficiency and the simplification of the corporate structure.

What the DGT has resolved

The Dirección General de Tributos (DGT) has addressed the possibility that the merger by absorption of a wholly-owned subsidiary may qualify for the tax neutrality regime. The analysis focuses on determining whether this type of operation meets the necessary requirements to prevent the reorganization from triggering an immediate taxable event.

The resolution is based on current regulations, specifically the Corporate Income Tax Law (LIS) and the amendments introduced by Royal Decree-Law 5/2023. The criteria establish that, under appropriate conditions, the absorption of a company that is wholly owned by the absorbing company allows for the maintenance of the tax continuity of assets and liabilities.

What it means for you

For companies that are part of corporate groups, this criterion is relevant because it allows for reorganizations, such as absorbing a 100% owned subsidiary, without generating capital gains or income that would be included in the Corporate Income Tax (IS) taxable base. This prevents internal restructuring from causing an unexpected tax burden that could affect the group's liquidity.

What should be done

Applying tax neutrality requires strict compliance with the requirements established in the Corporate Income Tax Law. It is necessary to verify that the operation meets the economic purposes and that the ownership is, in effect, total. Since each corporate structure presents specific particularities, it is fundamental to assess each case individually to ensure that the reorganization complies with the applicable regulations and avoids contingencies with the Tax Administration.