errorPEPPOL_BIS

PEPPOL-EN16931-R042:Allowance/charge percentage MUST be provided when allowance/charge base amount is provided.

When an allowance or charge has a base amount, the percentage must also be provided. Base amount alone without percentage is incomplete.

Fix this in your source system

MANUAL

Allowance/charge calculations require both base amount and percentage, or just the amount. The calculation method must match your pricing agreements.

See the step-by-step instructions below to fix this error manually.

Why This Error Matters

Invoice will be rejected by PEPPOL validation. Base amount without percentage cannot be properly validated.

Common Causes

  • Base amount provided without percentage
  • Percentage field not mapped in export
  • ERP stores base but not percentage
  • Flat amount discount entered as percentage-based
  • Manual entry missed percentage field

Frequently Asked Questions

When an allowance or charge has a base amount, the percentage must also be provided. Base amount alone without percentage is incomplete.
When an allowance or charge has a base amount, the percentage must also be provided. Base amount alone without percentage is incomplete. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, PEPPOL-EN16931-R042 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of PEPPOL-EN16931-R042 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.

Last updated: 18 January 2026

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