warningPEPPOL_BIS

PEPPOL-COMMON-R046:Tax Code (Codice Fiscale) must be stated in the correct format

Italian Tax Code (Codice Fiscale) must follow the correct format. This validation applies to a different location in the invoice where tax codes appear.

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AUTO-FIX

Auto-fix: Normalize Codice Fiscale format in this field. Same format rules as R045. Safe format standardization.

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Why This Error Matters

Invoice will be rejected by Italian validation. All Codice Fiscale fields must have valid format.

Common Causes

  • Tax code in this field has wrong format
  • Different tax code locations have inconsistent formats
  • Copy/paste error from another field
  • Wrong type of identifier used in this field
  • Formatting characters included

Frequently Asked Questions

Italian Tax Code (Codice Fiscale) must follow the correct format. This validation applies to a different location in the invoice where tax codes appear.
Italian Tax Code (Codice Fiscale) must follow the correct format. This validation applies to a different location in the invoice where tax codes appear. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
PEPPOL-COMMON-R046 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed.
Many instances of PEPPOL-COMMON-R046 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.

Last updated: 16 January 2026

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