Ley Crea y Crece – Spain’s interoperable B2B e-invoicing model
Understanding Spain’s B2B eInvoicing model under Ley Crea y Crece
Key implementation dates
Key milestones in the phased rollout of Spain’s B2B eInvoicing framework
Deadlines are counted from 6 October 2026, when Ministerial Order HAC/1028/2026, which regulates the public e-invoicing solution, entered into force under Royal Decree 238/2026. Beyond the rollout dates, businesses should also prepare for the operational impact of invoice-status communication, interoperability requirements and integration with the public e-invoicing solution.
06/10/2027
06/10/2028
06/10/2029
How Spain’s Ley Crea y Crece eInvoicing model works
Implementation
Phased from 6 October 2027 (turnover above €8 million) and 6 October 2028 (all other businesses and professionals)
Tax Authority
Agencia Estatal de Administración Tributaria (AEAT) – Spanish Tax Agency
Format
EN 16931 semantic model. Between private platforms: UBL, CII (UN/CEFACT), EDIFACT or Facturae, with conversion between them. The public solution and faithful copies use UBL
Digital Signature
Advanced electronic signature of the issuer (or authorized delegated signature) for invoices issued through private platforms
Archiving
Electronic invoices must be stored for at least 4 years in line with Spanish tax record-keeping requirements
Invoice Status Communication
Recipients must report commercial acceptance or rejection and full payment within four calendar days (excluding weekends and national holidays). Full payment or rejection and the payment due date must also be reported to the public solution
See how Code10 helps SAP-based businesses prepare for Ley Crea y Crece compliance in Spain
Frequently asked questions
Who is required to use e-Invoicing under the "Ley Crea y Crece"?
What formats are allowed for electronic invoices?
Invoices must follow the EN 16931 semantic model. Between private platforms, UBL, CII (UN/CEFACT), EDIFACT and Facturae are accepted, and platforms must be able to convert between them while preserving authenticity and integrity. Ministerial Order HAC/1028/2026 establishes UBL as the syntax of the public e-invoicing solution and of the faithful copies sent to it, which cannot include embedded files. Invoice statuses are reported to the AEAT through web services or a web form.
Is an electronic signature mandatory for e-invoicing?
Who reports invoice statuses under the Spanish model?
How does the public solution interact with private platforms?
Does the law apply to B2G transactions as well?
No, the “Ley Crea y Crece” focuses on B2B transactions. However, B2G einvoicing has been mandatory in Spain since 2015 through the FacturaE system.
Different Frameworks for SAP Integration And Ley Crea Y Crece Compliance
Ley Crea y Crece marks an important milestone in the digitalization of Spain’s B2B invoicing model. It requires the electronic exchange of structured invoices between businesses, private platforms and the public e-invoicing solution, together with mandatory invoice-status communication.
As a result, SAP and ERP systems must be able to generate compliant invoice data, validate structured formats such as UBL, submit faithful copies when required, exchange messages with public or private platforms, and reconcile invoice statuses within finance and compliance processes.
At Code10, we support this transition through SAP standard capabilities via the Document and Reporting Compliance framework, combined with advanced eCompliance integration delivered through our eCompliance Hub. This allows companies to prepare for Spain’s B2B e-invoicing mandate with a scalable architecture for invoice generation, validation, transmission, status tracking and long-term regulatory maintenance.