How the DGT's position has evolved
Current position
The refund of unduly received amounts has no tax impact in the fiscal year in which the reimbursement is made. As these are amounts that were not due, the impact must be managed through the rectification of the tax returns for the periods in which they were declared as income. The taxpayer must request the rectification of the tax returns for the corresponding fiscal years.
The DGT's position has remained constant since 2014. All rulings agree that the refund does not affect the current fiscal year and that regularization requires rectifying the periods in which the unduly received amounts were included.
Analysis based on 10 of 10 rulings with a stated position. Updated 28 September 2026.