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"The bank account does not appear in our database" when requesting the reference number

If you did not file a tax return in the previous year or the amount in box 505 of the 2024 Income Tax Return is zero (0.00), it is essential that we identify you with the last 5 digits of the code IBAN from a bank account that your Banking Entity informed us you are the owner of.

The system will automatically detect if this is your situation by your NIF / NIE and will ask you for the last 5 digits of your IBAN :

IBAN holder

If the account you provide us has not been reported by the Bank in its annual information declaration, you will not be able to request the reference number online using this method.

The alternatives in this case are:

  • Register at Cl@ve . You can do this online by requesting an invitation letter from the system. After receiving it, from the Electronic Headquarters of the AEAT you have the option to register by indicating the CSV provided in the letter.
  • Request an electronic certificate to carry out online procedures that require identification. It will be necessary to prove your identity at registration offices.
  • Request an appointment at your local tax office to obtain your 2025 tax return reference number. It will be available from March 11th. You can access this service until June 30, 2026 (end of the campaign period).