An e-mail says a notification is waiting for me. Is it genuine?

Maxime G

Maxime G

Last updated on Oct 31, 2026

It may be: the Agencia Tributaria sends a notice when a letter for your NIE is waiting in the DEHú, the administration's online mailbox. The notice itself is only information: don't click its links. Type the address of the DEHú or of the Agencia Tributaria's online office (Sede electrónica) yourself, and open the notification there.

Spotting a fake

  • The Agencia Tributaria's notices come from AgenciaTributaria@correo.aeat.es. Even then, open nothing from the message.
  • It never attaches files, never asks for bank or card details by e-mail or text, and never refunds to a card.
  • Every letter carries a CSV, a 16-character code at the foot of the first page, that brings up the original on the Sede.

The 10-day rule

  • If you chose electronic notifications, one left unopened for 10 calendar days counts as delivered, and the letter's deadline runs.
  • If you didn't, the letter also comes by post: its deadline runs from delivery, or from the day you open it online if that comes first.

Opening it

Sign in with Cl@ve, a digital certificate or eIDAS from another EU country. A representative with your power of attorney can read your notifications for you.

Once it's open, find what it asks in our free tax letter decoder, or ask us in the chat.