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Odoo VeriFactu not mandatory or registration in SII

No VeriFactu for Companies in REDEME or SII, Manual Invoicing or TicketBai
January 29, 2026 by
Odoo VeriFactu not mandatory or registration in SII
Albert Cabedo

Did you know that if you register in REDEME or meet certain requirements, you do not need to adapt to VeriFactu?

Request your registration before November 30!

During the month of November 2025 the period is open to apply for registration in the REDEME (Monthly VAT Refund Register), effective from January 1, 2026.

As the first specialized consultancy in Odoo in Spain, we at Contaldia explain what steps to take, how it affects your company, and how to avoid adapting to the VeriFactu system.

🔍 What is REDEME?

REDEME is a voluntary census register managed by the Tax Agency (AEAT) that allows VAT taxpayers to request the monthly refund of the VAT paid, instead of waiting for the end of the fiscal year.

This modality is especially useful for companies that have recurring credit balances or that carry outsignificant investments.

🏢 Who can apply?

The following can register:

  • Companies that are already engaged in economic activity.
  • Companies that have not yet started activity but have made preparatory investments, as long as there are objective elements to support it.
  • The ordinary period is from November 1 to 30, 2025. There is also an extraordinary deadline for those who do not apply on time or have not yet started activity.

🚀 Advantages of REDEME

  • Monthly refund of the VAT paid.
  • Improvement of business liquidity.
  • Mandatory for companies under the special group regime (REGE).
  • You do not need to apply VERIFACTU, "for now".
  • If you issue third-party invoices, the SII may be better initially until Verifactu is more mature.

📌 Obligations and requirements

To join REDEME, you must comply with:

  • Minimum stay of one year, or two years if requested late or without activity.
  • Monthly submission of the corresponding declarations.Keep the
  • VAT registration books through the SII (Immediate Supply of Information) Be up to date with tax obligations..
  • Not taxed under the simplified regime.
  • 🧾 What about VeriFactu?

The VeriFactu system is a new verifiable invoicing regime that requires, in principle, the incorporation of a QR code on invoices, ensuring traceability and authenticity, etc. (as explained in our blog) (“VeriFactu System in Spain: What it is and how to prepare with Odoo”).

More information at Contaldia.com Do you still have questions about VERIFACTU and Odoo?

Join Contaldia and discover how Odoo, taxation, and accounting can take your business to the next level.

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✔ Main reasons why you would NOT be required to use VeriFactu

  1. Being registered in REDEME (which already implies SII).
  2. Using the SII, mandatory for:

    • Large companies
    • REGE (VAT groups)
    • Companies in REDEME
  3. Manual invoicing (non-computerized).
  4. Companies with tax residence in the Basque Country and Navarra, where applicable TicketBAI / Batuz instead of VeriFactu.

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VERIFACTU vs SII


Differences between SII and VeriFactu

Although both systems relate to billing information, their nature and objectives are different:

1. Objective

SII

  • Its purpose isinformative.
  • The VAT Registration Books are sent to the AEAT with in 4 days. It mainly affects
  • large companies, REGE, and REDEME grandes empresas, REGE y REDEME.

VeriFactu

  • Its goal is to ensure the integrity and immutability of invoices.
  • It controls the invoicing software and its traceability.
  • It is planned for any company or self-employed individual, except for exemptions.

2. Operation

SII

  • Telematic submission of VAT records.
  • It does not affect how invoices are generated, only the reporting.

VeriFactu

  • Acts with in the invoicing software, controlling:

    • Blockchain (hash)
    • Timestamping
    • Inviolable record
    • QR Code
  • It can automatically send data to AEAT if VeriFactu mode is activated.

3. Scope of application

SII

  • Mandatory only for certain groups.
  • In the short term, it will not be extended to all companies.

VeriFactu

  • Designed to be applied in a widespread manner to most companies and self-employed individuals, except for exemptions like SII or TicketBAI.

4. Compatibility

Both systemscan coexist, but:

  • If you are inSII, you do not need to adapt your software to the VeriFactu standard.
  • If you are not in SII, you will have to adapt, except for exceptions.


Conclusion for Odoo companies

For many businesses, especially those with significant volume or strong investment, the registration in REDEME (and therefore the use of SII) can mean:

  • Monthly liquidity
  • Registration simplification
  • Avoid the obligation of VeriFactu

At Contaldia, we help you assess whether it is beneficial for you to request it, and we handle the entire process for you.