How the DGT's position has evolved
Current position
The right to deduction arises upon the accrual of the quotas, provided that its use for a business activity is proven. The excess of quotas borne over those accrued may be offset in subsequent tax returns within a period of four years. If it has not been offset or a refund requested within said period, a refund may be requested within the statute of limitations period.
The DGT's position remains constant regarding the application of the four-year statute of limitations for the exercise of deduction and offset rights. The rulings confirm that the right may be exercised in the period of accrual or in subsequent periods, provided that the legal period has not expired. No doctrinal changes are observed, but rather the reiteration of the time frame established in the regulations.
Analysis based on 13 of 13 rulings with a stated position. Updated 27 September 2026.