How the DGT's position has evolved
Current position
Income from employment is imputed to the period in which it becomes due, even if its amount depends on judicial rulings. To regularize amounts received in previous years, a supplementary tax return must be filed. The statute of limitations for requesting refunds is four years. In cases of back payments, the calculation of the statute of limitations is conditioned by the deadline to file the corresponding supplementary tax return.
The DGT maintains a consistent position regarding the imputation of income in the period of exigibility. The evolution focuses on the application of this principle to specific scenarios such as floor clauses, maternity supplements, and judicial rulings. It is confirmed that the statute of limitations for refunds is governed by the four-year period, but its calculation is nuanced when the filing of a supplementary tax return prevents the passage of the period.
Turning points
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Establishes that the statute of limitations does not begin to run until the deadline for filing the supplementary tax return expires when the amount depends on a judicial ruling.
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Specifies that the deadline for filing supplementary tax returns for amounts received from previous years prevents the four-year statute of limitations for the affected periods from running.
Analysis based on 60 of 62 rulings with a stated position. Updated 18 September 2026.