Our free Facturae validator checks a Spanish electronic invoice against the official Facturae schema. It recognises versions 3.0 up to 3.2.2. Drop your XML file below: you see every structure error, and the file never leaves your browser.
Drop your XML file here or click to choose a file
UBL, CII or another e-invoice format (.xml, .p7m), or a PDF with embedded XML (Factur-X, ZUGFeRD). The file stays on your own computer.
What does the Facturae validator check?
The Facturae validator checks the structure of the invoice against the official schema (XSD) of its version: the right elements, in the right order, with valid data types, dates and amounts. For Facturae there is no public Schematron rule set, so we check the structure only.
What is Facturae?
Facturae is the Spanish XML format for electronic invoices. Suppliers of Spanish public administrations have used it for years, through the central entry point FACe. A Facturae invoice for the government carries an electronic signature (XAdES).
Facturae and the Spanish B2B obligation
Spain approved the rules for mandatory e-invoicing between businesses in 2026. The obligation starts in October 2027 for businesses with a turnover above 8 million euros and a year later for the others. Invoices follow the European standard EN 16931. Facturae is one of the accepted formats on private platforms, next to UBL, CII and EDIFACT; copies for the public platform of the tax agency must be in UBL. Updated on 10 October 2026.
What the Facturae validator does not check
We do not check the XAdES signature, VeriFactu or the checks of FACe and other platforms. The result is therefore an aid, not a guarantee that a platform or customer will accept the invoice.
Frequently asked questions about the Facturae validator
Is the Facturae validator free?
Yes. You need no account, and the file is processed only in your browser.
Which Facturae versions do you support?
Versions 3.0 up to 3.2.2. The validator recognises the version from the file.
Do you check VeriFactu?
No. VeriFactu concerns invoicing software and the records it sends to the Spanish tax agency, not the Facturae file itself.
Belgian customer?
Invoices to Belgian businesses travel via Peppol in the Peppol BIS Billing 3.0 format. For those invoices, use our Peppol validator instead, because it applies the official Peppol rules.
More free tools
- E-invoice formats by country: every format the validator recognises, and also what it checks for each.
- Peppol error codes: common rule codes in plain language, such as BR-CO-15, with tested XML examples.
- Test invoices: sample files with and without errors, so that you can try the validator first.
- UBL viewer: open an XML invoice and then read it as a PDF.