Second step: modify the declaration already submitted

In "Declaration sections" the option "Modify 2024 Income Tax Return already submitted" will be selected:

And in the window box 103 will be checked:

Generally, you don't have to enter any amounts manually, as the receipt numbers and refund amounts already agreed upon by the Administration are automatically generated. Therefore, those requested by the taxpayer that have not been approved by the AEAT are not counted.

Continuing with the example, since the refund has not yet been agreed upon, the amount “0.00” appears as the agreed refund:

Thus, in the declaration summary, since no refund had been previously agreed upon, the new amount of €801.59 appears as a result of the modification, replacing the amount from the previous declaration. If any previous refund had been made, only the difference would be requested now.