The button "Modify tax return filed" does not appear
If you have filed the joint tax return but you need to make modifications and when accessing "Modify tax return," in the section "Available Services" , you will not be shown the "Modify tax return filed" button because you have logged in from a different session to the one you used to file the tax return, only "New tax return" will appear in this case.
When a joint tax return is filed, only the "Modify tax return filed" button will appear on Renta Web:
When the first declarant accesses in his/her name.
When the Social Collaborator is accessed on behalf of the former (identifying himself with a certificate from a social collaborator and entering the reference of the first declarant).
If you access the spouse, you will only have the option of "New tax return" when accessing Renta Web whether you access with your own certificate, DNIe, Cl@ve or reference number, or if you access the Social Collaborator on your behalf.
This does not prevent you from filing a new tax return with any modifications that may be necessary. to do so, you must access the tax return and select the type of tax return you wish to file "Supplementary tax return" or "Solicitud de rectification de self-assessment."
If the filing was made from the "First declarer" session and you log in from the "Spouse" session, only "New tax return" will appear.
If you log in from the "First declarer" session, you will have the "Modify tax return filed" button: