Spain moves forward with mandatory B2B E-Invoicing and Invoice Status Reporting

Spain is moving closer to mandatory B2B e-invoicing, with large businesses expected to enter the system from October 2027. The new framework combines structured invoices, a public AEAT platform and mandatory reporting of invoice payment and rejection status.

Spain has taken another important step towards implementing its mandatory B2B electronic invoicing system under the Crea y Crece framework. Real Decreto 238/2026 establishes the main legal and operational framework, including structured electronic invoices, private e-invoicing platforms, a public solution managed by the Spanish Tax Agency (AEAT), and reporting of invoice lifecycle information. Spain is targeting 1 October 2026 for the technical rules governing mandatory B2B e-invoicing.

The Royal Decree was published on 31 March 2026 and entered into force on 20 April 2026. However, the practical start of the obligation depends on a separate Ministerial Order regulating the public e-invoicing solution. The current draft of that Order proposes that it enter into force on 1 October 2026.

This means businesses can already start preparing, particularly those with annual turnover above €8 million, but the final implementation dates still depend on the adoption of the Ministerial Order.

Spain will introduce mandatory B2B e-invoicing in phases.

Under Real Decreto 238/2026, taxpayers whose annual turnover exceeded €8 million in the previous calendar year will become subject to the obligation 12 months after the relevant Ministerial Order enters into force. Other businesses will follow 24 months after the Order enters into force.

Based on the current draft date of 1 October 2026, the expected timetable is therefore:

• 1 October 2026: proposed entry into force of the Ministerial Order;
• August 2027: public e-invoicing platform expected to be available;
• October 2027: first mandatory wave for businesses with turnover above €8 million;
• October 2028: mandatory e-invoicing extended to other businesses;
• October 2029: certain smaller taxpayers receive an additional period for invoice status and payment reporting.

The public solution must be available at least two months before the first effective application of the system. This explains the expected August 2027 launch if the first mandatory phase begins in October 2027.

However, because the Ministerial Order has not yet been finally published in the BOE, businesses should treat these dates as the current expected implementation schedule rather than completely fixed deadlines.

The obligation focuses on B2B transactions

The new system primarily applies to invoices issued between businesses and professionals where the recipient has its place of economic activity, permanent establishment, domicile or habitual residence in Spain, provided that the transaction is supplied to that Spanish establishment or location. It does not create a general B2C e-invoicing obligation.

This distinction is particularly important for international businesses. A Spanish VAT registration alone does not necessarily mean that every invoice issued by a foreign company falls within the Spanish B2B e-invoicing system.

Businesses therefore need to assess factors such as whether they have a Spanish establishment or fixed establishment, where their customer is located and which establishment actually receives the goods or services.

The formats currently recognized by the Royal Decree are:

• UBL;
• CII;
• EDIFACT; 
• Facturae.

Private platforms will need to support interoperability and be able to transform invoices between the accepted formats without losing the integrity of the information. Electronic invoices issued through private platforms must also use an advanced electronic signature. Further technical details will be established through the Ministerial Order and AEAT technical specifications.

In our view, the most significant part of Spain's new model is that it is not simply an invoice-format change. Businesses will have to manage structured invoice exchange, connectivity with the public AEAT system and lifecycle information such as invoice rejection and payment status.

For large organizations, the technical challenge will likely be connecting information that is currently held across several systems. Invoice creation may sit in the ERP, transmission may be handled by an e-invoicing provider and payment information may come from accounts payable, treasury or banking systems.

Although some technical details are still pending, companies above the €8 million threshold should not wait for every specification before starting their impact analysis.

Implementation Impact and What Businesses Should Do?

Businesses should first identify which Spanish entities, establishments and B2B transaction flows fall within scope. A Spanish VAT registration alone should not be treated as sufficient to determine whether every transaction is covered.

Companies should then review where invoice, acceptance, rejection and payment information is currently stored and determine whether these data can be linked to the original invoice.

Businesses using private e-invoicing providers should also check whether their solution will support EN 16931, UBL, CII, EDIFACT and Facturae, interoperability with other platforms and transmission of the required UBL copy to AEAT.

Finally, businesses with turnover above €8 million should prepare on the assumption of an October 2027 first phase, while continuing to monitor the final Ministerial Order. The dates depend on that Order entering into force as currently proposed on 1 October 2026, so any change to its publication or effective date would also move the subsequent implementation deadlines.

The source of this text is based on the article that was published by Pincvision. Source

Nikolina Basić, Senior Legal Consultants at Fiscal Solutions

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