How the DGT's position has evolved
Current position
The transfer of undivided participation shares does not constitute a dissolution of the community of property if the real estate remains held in co-ownership, but rather an onerous transfer of shares. These operations are subject to Transfer Tax (ITP) and not to Stamp Duty (AJD). For Personal Income Tax (IRPF), the adjudication generates capital gains or losses based on the value of the shares.
The DGT's position remains constant in classifying the reduction in the number of co-owners as an onerous transfer of shares and not as a dissolution of a community. Throughout the rulings, it is confirmed that these operations are taxed as transfers of property and not as stamp duty, except in cases of horizontal division.
Turning points
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Clarifies that the variation of shares does not trigger Stamp Duty (AJD) if surfaces are not altered, as the modification of coefficients does not have as its object a quantity or valuable thing.
Analysis based on 9 of 10 rulings with a stated position. Updated 28 September 2026.