Spain’s Tax Agency has provided further technical detail on the country’s future B2B e-invoicing system. The update gives companies more insight into invoice formats, lifecycle reporting, payment status requirements and the role of the public platform.
During a technical webinar on 10 September 2026, the Agencia Estatal de Administración Tributaria, AEAT, said the Ministerial Order needed to complete the regulatory framework is in the final stages of processing. Publication is expected during October 2026, although AEAT acknowledged that the previously targeted date of 1 October may not be met.
This timing remains important. Spain’s implementation deadlines are linked to the Ministerial Order entering into force. Businesses with annual turnover above €8 million are expected to comply 12 months later. The remaining businesses are expected to follow after 24 months.
If the Order is published after 1 October 2026, the widely cited deadlines of 1 October 2027 and 1 October 2028 will need to be confirmed against the final publication date. This follows the same timing uncertainty discussed in our previous update on Spain’s first e-invoicing wave expected beyond October 2027.
Spain’s hybrid e-invoicing model
Spain will operate a hybrid B2B e-invoicing model. This means companies will be able to use private e-invoicing platforms, while the tax authority will also manage a public solution known as the Public Electronic Invoicing Solution, or SPFE.
The public platform is expected to play an important role in invoice exchange, validation and reporting. AEAT confirmed that SPFE will use UBL 2.5, aligned with the EN 16931 semantic standard.
SPFE will validate invoices against UBL, EN 16931 and additional AEAT-specific rules. This confirms that compliance will not only depend on sending an electronic invoice, but also on meeting the required structure, data quality and validation rules.
The confirmation of UBL 2.5 is also relevant beyond Spain. The standard recently received its first major update in more than a decade, which we covered in our article on the UBL 2.5 update for e-invoicing standards.
Lifecycle and payment status reporting
The update also gives more detail on invoice lifecycle reporting. Invoice recipients must report full payment and the relevant payment and due dates to SPFE, or communicate that the invoice has been rejected.
Invoices that are not rejected will be presumed accepted. This makes recipient-side processes important. Companies will need to define how invoice acceptance, rejection, payment status and due dates are captured and reported from their internal systems.
For finance teams, this means the Spanish mandate will affect more than invoice issuance. It will also touch approval flows, payment processes, master data, ERP configuration and exception handling.
Technical documentation still to follow
Detailed technical documentation and a testing environment are expected after publication of the final Ministerial Order. Until then, companies still need to work with some open points, especially around final technical specifications and confirmed implementation dates.
However, the direction is becoming clearer. Companies can already assess whether their current invoicing, ERP and accounts payable processes are ready for structured invoice exchange, lifecycle reporting and payment status communication.
Possible alignment with SII, VeriFactu and ViDA
Spain is also considering how its B2B e-invoicing regime could eventually be aligned more closely with SII and VeriFactu. A recent Spanish Senate motion called for the three frameworks to be progressively integrated and aligned with the EU’s VAT in the Digital Age requirements.
The motion is non-binding and does not change the implementation timetable. Still, it reflects the broader direction of travel. Spain is not only introducing e-invoicing as a document exchange requirement, but as part of a wider digital tax control framework.
This builds on Spain’s wider regulatory framework, including Royal Decree 238/2026, which set out important elements of the country’s B2B e-invoicing model.
Changes companies need to implement
Companies with operations in Spain should not wait for the final Ministerial Order before reviewing their readiness. The technical direction is becoming specific enough to start assessing system impact.
Key areas include invoice format support, SPFE connectivity, UBL 2.5 readiness, EN 16931 validation, payment status reporting and the internal process for invoice rejection or acceptance. Companies should also review how invoice lifecycle events are captured in ERP, accounts payable and accounts receivable workflows.
For international organisations, Spain adds another layer to Europe’s fast-changing e-invoicing and digital reporting landscape. The practical challenge is not only meeting one mandate, but building a scalable compliance approach that can handle different country models, validation rules and reporting requirements.
Routty is Dynatos’ platform for e-invoicing and financial document automation. It helps companies manage invoice exchange, validation and compliance reporting across changing regulatory environments.
Key takeaways
- Spain’s Tax Agency has shared new technical detail on the future B2B e-invoicing system.
- The final Ministerial Order is expected in October 2026, but may not be published on 1 October.
- The first and second implementation waves remain linked to the Order entering into force.
- Spain will use a hybrid model with private platforms and the AEAT-managed SPFE.
- SPFE will use UBL 2.5, aligned with EN 16931, and apply additional AEAT validation rules.
- Invoice recipients must report payment details or communicate invoice rejection.
- Detailed technical documentation and a test environment are expected after the final Order is published.
