Real Decreto 238/2026 is in force, but no date applies yet. The countdown — 12 months for businesses over €8M, 24 for everyone else — starts only when the ministerial order governing the AEAT public platform takes effect. Facturae is the primary format.
Spain's Ley Crea y Crece (Law 18/2022) introduced mandatory B2B e-invoicing in a phased approach, and the implementing regulation now exists: Real Decreto 238/2026 of 25 March was published in the BOE on 31 March 2026 and has been in force since 20 April 2026. It sets the technical requirements for invoice-exchange platforms and for the AEAT public solution. What it does not set is a calendar date. The obligations become enforceable 12 months later for businesses with annual turnover above €8 million, and 24 months later for everyone else including SMEs and autónomos — but both periods are counted from the entry into force of a separate ministerial order governing the public platform, and that order has not yet been made. So no Spanish business is under the mandate today, and the 2025–2027 dates still widely quoted are wrong. The primary format is Facturae (Spain's national XML format) or invoices conforming to EN 16931. The B2G system (FACe) has been in operation since 2015. VERIFACTU and SII are separate regimes and are frequently confused with this mandate.
There is no current deadline. Real Decreto 238/2026 has been in force since 20 April 2026, but both phases are counted from the entry into force of the ministerial order for the AEAT public solution, which is still pending — 12 months for businesses above €8M turnover, 24 months for all others. Verify with the Spanish Tax Agency (AEAT) before planning around any specific date.
Phase 1: businesses with annual turnover above €8 million (measured per article 121 of VAT Law 37/1992), 12 months after the ministerial order takes effect. Phase 2: all other businesses, including SMEs and autónomos, 24 months after. Neither clock has started.
There is no current deadline. Real Decreto 238/2026 has been in force since 20 April 2026, but both phases are counted from the entry into force of the ministerial order for the AEAT public solution, which is still pending — 12 months for businesses above €8M turnover, 24 months for all others. Verify with the Spanish Tax Agency (AEAT) before planning around any specific date.
Facturae (Spain's national XML format) or EN 16931 compliant formats. FACe is the B2G platform in use since 2015. PEPPOL is not the primary channel in Spain — Facturae dominates.
Invoicia generates PEPPOL BIS Billing 3.0 XML, which is EN 16931 compliant. For cross-border invoicing with Spanish customers, PEPPOL BIS 3.0 is appropriate. For domestic Spanish Facturae invoicing, your Spanish accounting software or ERP with Facturae support is recommended.
Already have an invoice XML? Check it against common PEPPOL BIS Billing 3.0 mistakes — free, no signup.
Last reviewed March 2026. This page is informational and not legal advice. Verify requirements with official sources or a qualified adviser.