How to check an already issued tax certificate

  • You can verify a tax certificate that has already been issued by going to 'E-Office', 'Featured procedures', 'Comparison of documents using the secure certification code'.

    Procedures for comparing documents

    All certificates issued, however they were applied for, will have a verification code for the recipient to verify their authenticity and validity.

    You cannot use this option until the certificate has been issued.

    This comparison is useful if you received the certification by ordinary mail or email, or any other method other than our website.

    Useful links:

    certification certificate consultation verification issued comparison
  • Información sobre Firma digital (certificado o DNIe) y sistema Cl@ve PIN