How the DGT's position has evolved
Current position
Donations are considered a single transfer when made by the same donor to the same donee within a three-year period. Mortis causa donations are considered succession titles and are accumulable to the succession if the period between the donation and the death does not exceed four years. In cases of immediate transfer, the tax accrues at the moment of the signing of the contract.
The DGT's position remains constant regarding the distinction between inter vivos donations and succession titles. It is confirmed that the accumulation of donations requires identity of donor and donee, whereas improvement pacts or succession titles are not accumulated with each other as they are not strict donations. The doctrine reaffirms the accumulation of mortis causa donations to the succession within the four-year period.
Turning points
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Establishes that the improvement pact is a succession title and not a donation, therefore it is not possible to accumulate it with the inheritance of the beneficiary.
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Specifies that mortis causa donations are accumulable to the succession as long as the period between the donation and the succession does not exceed four years.
Analysis based on 9 of 9 rulings with a stated position. Updated 29 September 2026.