For online filing of form 030, go to the e-Office, "All procedures", "Censuses, tax code and tax address", "Censuses", "Form 030.Census of liable taxpayers-Statement of registration, change of address and/or change of personal details" and select "Modification or filing".
Enter the DNI or NIE in the box to log in with Cl@ve PIN or click "Access with electronic certificate or DNI".
Note:In the instructions for form 030, in "Information and help" , "General information". you will find complete information on taxpayers required to file a tax return, filing deadline and how to fill in the different fields.
Once logged in, you can manually fill in the tax return or import a file using the "Browse” button, provided that the file adapts to the updated registry design.
When you have finished filling in the tax return, click on "Sign and send”.
If filing is correct, you will receive a response sheet with the CSV code (Secure Verification Code), the filing details and a copy of the tax return.