How the DGT's position has evolved
Current position
The acquisition date for calculating the period of generation of the increase in value is the date the transmitting entity acquired the property. In merger or asset contribution processes, the calculation is not interrupted, and the previous date subject to tax is used. For assets transitioning from public domain to private property, the acquisition date is the date of the transfer from the public domain.
The DGT's position has transitioned from defining the nature of de-dedication in community property and its impact on IRPF (Personal Income Tax), towards the technical determination of the acquisition date for calculating the generation period in the IIVTNU (Tax on Increased Value of Urban Land). The most recent rulings focus on the continuity of the temporal calculation in corporate operations and the transition of assets from the public domain.
Turning points
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Specifies that the delivery of a premises remains subject to IVA (VAT) if the effective cessation and de-dedication of the property has not occurred.
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Establishes that in mergers or asset contributions, the calculation of the period of generation of the increase in value is not interrupted.
Analysis based on 30 of 35 rulings with a stated position. Updated 23 September 2026.