3.3.12. Identification labels
Note: It will not be necessary to attach the identification labels to the Income Tax returns that are generated computerized by using the printing module developed by the Tax Agency, as is the case with those made using this Web Income program.
The Personal Income Tax taxpayer who must sign the declaration must complete the data relating to his or her identification and habitual residence in the spaces reserved for this purpose.
When you are declaring for the first time, you must accompany the "Exemplars for Administration" a photocopy of the document proving the Tax Identification Number (NIF).
In the case of a joint declaration for the Personal Income Tax made by a family unit made up of both spouses, each of them must complete the data relating to their identification and their habitual residence in the spaces reserved for this purpose.
If one of the spouses or both are filing the declaration for the first time, they must accompany the "Exemplars for the Administration" a photocopy or photocopies of the respective card or document accrediting the Tax Identification Number (NIF).