For those taxpayers whose electronic certificate has expired or is due to expire, the AEAT permits the use of expired certificates on its e-Office in accordance with the provisions of Royal Decree 463/2020, of 14 March.

Your regular browser may not allow this, in which case we recommend using Firefox, so you can continue to use it.

If you have questions about technical computer issues, you can call the following telephone numbers:

Telephone: 901 200 347 or 91 757 57 77.

For information in Catalan: 93 442 27 64