How the DGT's position has evolved
Current position
The return of the principal of a surety bond does not generate a capital gain or loss, as it is identical to the previous credit right. The interest received is compensatory in nature due to breach of contract and constitutes a capital gain that does not derive from a transfer. According to the doctrine of the Supreme Court, this interest must be included in the general tax base of the Personal Income Tax (IRPF) and cannot be offset by legal or court representative fees.
The DGT maintains the thesis that the principal does not generate a change in wealth and that the interest constitutes compensatory capital gains. The evolution shows a transition in the classification of the tax base for interest, moving from the savings tax base to the general tax base. The most recent position aligns with the doctrine of the Supreme Court regarding inclusion in the general base and the impossibility of deducting expenses.
Turning points
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Establishes that any amount exceeding the payments made that is not classified as interest constitutes a capital gain that must be included in the general tax base.
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Clarifies that interest must be included in the general tax base following the doctrine of the Supreme Court and prohibits the deduction of lawyer or court representative fees.
Analysis based on 16 of 16 rulings with a stated position. Updated 26 September 2026.