Verifactu: certificate and registering with the AEAT

Verifactu (Spanish Royal Decree 1007/2023) requires every invoice to carry a fingerprint chaining it to the previous one and a verifiable QR code. To send them to the Spanish Tax Agency you need a digital certificate and the hotel’s tax details in Configuración → Tu web y los canales → Conexiones.

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What you need

  • A qualified digital certificate (for a legal entity or representative) or a compatible company seal.
  • The tax ID, legal name, and invoice series your accountant uses.
  • The identifier of your invoicing software and the installation number.
  1. 1

    Get the certificate

    Request it from the FNMT or another certification authority; your accountant can do it for you if they already handle your taxes.

  2. 2

    Upload it to oxpea

    In Configuración → Tu web y los canales → Conexiones you upload the certificate to protect the submission to the AEAT.

  3. 3

    Fill in the tax ID, legal name, and series

    These are the details that identify every invoice to the tax authority.

  4. 4

    Test before going live

    First the format is validated and, with the certificate, a test submission to the Tax Agency.

NumberTotalIssued
  • A-2025-0042516 €Issued
  • A-2025-0041184 €Issued
  • —342 €Pending issue
Every invoice issued with its fingerprint and submission status.

Important

An issued invoice is never edited or deleted: it is corrected with a credit/correction invoice, exactly as the regulation requires.

Tips

  • If the AEAT is not connected yet, the invoice is still issued and marked "pending submission"; nothing is lost.
VERI*FACTU technical documentation (AEAT)Individual certificate (FNMT)