ZUGFeRD and XRechnung Validators 2025: Complete Guide to Testing Electronic Invoices

ZUGFeRD & XRechnungValidators: Essential Tools for Electronic Invoice Compliance

Creating compliant ZUGFeRD electronic invoices is only half the battle—validating them to ensure they meet all technical and regulatory requirements is equally crucial. ZUGFeRD validators are specialized tools that help businesses verify their electronic invoices before sending them to customers or government entities.

What is ZUGFeRD Validation?

ZUGFeRD validation is the process of checking whether an electronic invoice meets the technical specifications and business rules defined by the ZUGFeRD standard. This includes:

• XML schema validation against the EN 16931 standard
• Verification of mandatory data fields
• Business rule compliance (e.g., tax calculations, date formats)
• PDF/A-3 format compliance for hybrid documents
• Digital signature verification (where applicable)

Validated in 2025: ZUGFeRD & XRechnung Validators

Use the following validator services to check your electronic invoices. This list mirrors the commonly referenced public catalog and is sorted alphabetically by name. Always perform both technical validation (structure, schema, Schematron) and content validation (business rules, correctness of data).

Tip: For German XRechnung, validate against KoSIT-compliant rules and ensure EN 16931 conformance. If your process relies on PDF to XML conversion, use a robust converter first, then run the XML through at least one independent validator from the list above.

Technical vs. Content Validation

• Technical: Schema, Schematron, profile levels (ZUGFeRD profiles, XRechnung syntax), attachments and embedded XML (for ZUGFeRD/PDF-A).
• Content: Required business fields (seller, buyer, totals), tax breakdowns, unit codes, payment means, and buyer references (e.g., Leitweg-ID).

This alphabetical directory reflects widely used validator endpoints as of 2025. Always check each service's size limits, profiles supported, and privacy policy before uploading production data.

Integration with Invoice-Converter.com

Our platform includes built-in ZUGFeRD validation as part of our conversion services:

• Real-time Validation: Immediate feedback during the conversion process
• Detailed Error Reports: Specific guidance on fixing validation issues
• Multiple Format Support: Validation for ZUGFeRD, XRechnung, UBL, CII and more

Whether you're converting PDF to ZUGFeRD or creating electronic invoices from scratch, our validation tools ensure compliance before delivery.