The right tool for each step

Start with what you need to do. Specialist checks are available when you already know the required format.

Your invoice never leaves your browser

Already know the required format?

Choose a specific check below. Otherwise, the invoice checker detects your file format.

XRechnung validator
Check an XML invoice for the German public sector.
Rules and versions used
Ruleset XRechnung 3.0.2, as of 31 August 2026
Validate an invoice
ZUGFeRD validator
Check the embedded data in a ZUGFeRD PDF invoice.
Rules and versions used
Factur-X 1.09.2 / ZUGFeRD, as of 4 August 2026
Validate a ZUGFeRD invoice
Factur-X validator
Validate the embedded XML in a Factur-X PDF invoice.
Rules and versions used
Factur-X 1.09.2 / ZUGFeRD, as of 4 August 2026
Validate a Factur-X invoice
EN 16931 validator
Check XML invoices against the common European standard.
Rules and versions used
Rule set EN 16931, CEN artefacts 1.3.16, as of 13 April 2026
Validate an invoice
Peppol validator
Check an invoice or credit note for the Peppol network.
Rules and versions used
Rule set Peppol BIS Billing 3.0, version 3.0.20, as of 16 March 2026
Validate an invoice

Check a Leitweg-ID’s structure and check digits.

Leitweg-ID validator
Check the structure and check digits of a Leitweg-ID.
Rules and versions used
Leitweg-ID format specification 2.0.2 (KoSIT, 28 July 2021)
Validate a Leitweg-ID

Find its explanation, the field concerned and a way to correct it.