How the DGT's position has evolved
Current position
The determination of personal and family circumstances is carried out based on the situation existing on the tax accrual date, which coincides with December 31. To apply the disability minimum, the taxpayer must have an accredited degree equal to or greater than 33 percent on said date. If the disability certificate has retroactive effects, the corresponding late tax return may be filed.
The DGT's position remains constant throughout the analyzed sequence. All rulings agree that the personal situation is determined by the reality existing on the tax accrual date. No changes in criterion are observed, but rather a systematic reiteration of the rule.
Turning points
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Clarifies that if the disability certificate has retroactive effects, the taxpayer may file the corresponding late tax return.
Analysis based on 11 of 15 rulings with a stated position. Updated 26 September 2026.