Validate UBL invoices for Spain's B2B mandate

Under the Crea y Crece law, Spanish companies above €8 million turnover must issue structured B2B e-invoices from 6 October 2027; everyone else follows on 6 October 2028. UBL is one of the accepted syntaxes.

Above €8m turnover
6 Oct 2027
All other businesses
6 Oct 2028
Syntaxes
UBL, CII, EDIFACT, Facturae
Separate obligation
VERI*FACTU software from 2027

Drop your e-invoice here

UBL 2.1 · Peppol BIS 3.0 · XRechnung · Factur-X / ZUGFeRD (XML or PDF)

Processed in memory and never stored. PDFs are unpacked in your browser.

What this validator checks for Spain

  • Spanish VAT IDs (NIF with ES prefix) format
  • EN 16931 mandatory content and VAT categories
  • VAT at 21%, 10% and 4% per category
  • Canary Islands IGIC (L) and Ceuta/Melilla IPSI (M) categories
  • Payment terms and due dates

Crea y Crece vs. VERI*FACTU

Two different obligations: Crea y Crece requires structured B2B e-invoices exchanged between companies; VERI*FACTU requires certified invoicing software with integrity controls and QR codes. VERI*FACTU applies from 1 January 2027 for corporate taxpayers and 1 July 2027 for others.

Frequently asked questions