Doctrine by topic · DGT Observatory

Accounting Retroactivity: DGT doctrinal evolution

How the DGT's position on this topic has evolved, and the rulings it rests on.

← DGT Observatory

How the DGT's position has evolved

Settled doctrine High confidence 9 rulings · 2014–2024

Current position

The absorbing entity subrogates into the rights and obligations of the absorbed entity as it constitutes a universal succession. Due to the accounting retroactivity of the merger, the income of the absorbed entity is attributed to the absorbing entity. The absorbing entity must file the tax returns of the absorbed entity whose deadlines expire after the merger, including the previous fiscal year and the period from the beginning of the year until its extinction.

The DGT's position remains constant regarding the effects of accounting retroactivity in mergers under the special regime. The rulings confirm that the income of the absorbed entity is attributed to the absorbing entity and that the latter must assume the filing of the pending tax returns. The doctrine has focused on qualifying the validity of the special regime against the existence of valid economic reasons and the absence of fraud.

Turning points

  1. V1837-18

    Confirms that accounting retroactivity has full tax effects, allowing the absorbing entity to apply pending deductions and offset negative tax quotas of the absorbed entity.

  2. V2143-20

    Clarifies that the existence of negative tax bases does not invalidate the special regime, provided that the merger improves the equity position and does not solely seek to exploit said bases.

Analysis based on 8 of 9 rulings with a stated position. Updated 29 September 2026.

Rulings on this topic

9

Apply this to your case

Corporate tax advisoryTalk to the team applying this doctrine daily.
Talk to the tax teamWe check whether this criterion affects you and what it means in your situation.
Email
Contact