Attestwire

Rule reference

PEPPOL-EN16931-R041 The document level allowance states a percentage of 5% but no base amount

The document level allowance states a percentage of 5% but no base amount. Peppol requires the base whenever the percentage is present, because a percentage on its own is not checkable: the reader can see that you claim 5% and cannot see 5% *of what*, so the amount has to be taken on trust. With both terms present, PEPPOL-EN16931-R040 can verify that the amount is what the percentage produces. Core EN 16931 leaves both optional and independent; this is a genuine tightening. This is a Peppol BIS Billing 3.0 profile rule: it applies because profile is "peppol-bis-3". It does not apply to the en16931, xrechnung-ubl or xrechnung-cii profiles, whose validators will accept the same document.

This rule is implemented and its error payload below is real, but the long-form write-up — normative text, worked example, divergence note — is not written yet. Everything the library knows about this rule is on this page. Ask and we will prioritise it.

Business term
BT-93 / BT-94
Severity
fatal

What the library returns

The exact object in result.errors when this rule fires. Generated by running @attestwire/en16931, not transcribed:

TeachingError
{
  "rule": "PEPPOL-EN16931-R041",
  "field": [
    "BT-93",
    "BT-94"
  ],
  "severity": "fatal",
  "message": "The document level allowance states a percentage of 5% but no base amount. Peppol requires the base whenever the percentage is present, because a percentage on its own is not checkable: the reader can see that you claim 5% and cannot see 5% *of what*, so the amount has to be taken on trust. With both terms present, PEPPOL-EN16931-R040 can verify that the amount is what the percentage produces. Core EN 16931 leaves both optional and independent; this is a genuine tightening. This is a Peppol BIS Billing 3.0 profile rule: it applies because profile is \"peppol-bis-3\". It does not apply to the en16931, xrechnung-ubl or xrechnung-cii profiles, whose validators will accept the same document.",
  "fix": "Set allowances[0].baseAmount to the figure the percentage is applied to, or drop allowances[0].percentage and state the amount alone. Note that the base is not necessarily the line or document total — it is whatever your commercial agreement computes the discount on.",
  "example": "{ \"amount\": 50.00, \"baseAmount\": 1000.00, \"percentage\": 5, \"reason\": \"Volume discount\" }",
  "xpath": "/ubl:Invoice/cac:AllowanceCharge[1]/cbc:BaseAmount",
  "docsUrl": "https://attestwire.com/rules/PEPPOL-EN16931-R041"
}

xpath locates the element in the generated UBL document, which is where a KoSIT or Peppol validator will report the same problem.

A passing value

the shape this field expects
{ "amount": 50.00, "baseAmount": 1000.00, "percentage": 5, "reason": "Volume discount" }

The fix

Set allowances[0].baseAmount to the figure the percentage is applied to, or drop allowances[0].percentage and state the amount alone. Note that the base is not necessarily the line or document total — it is whatever your commercial agreement computes the discount on.

All 292 rules →

Nearby: PEPPOL-EN16931-R042 — The document level charge states a base amount of 1000 but no percentage; PEPPOL-EN16931-R040 — The document level allowance states an amount of 60.00 EUR, a base amount of 1000.00 and a percentage of 5%; PEPPOL-EN16931-R046 — A line states an item gross price (BT-148) of 100 and an item price discount (BT-147) of 10, so the item net price (BT-146) must be 90 — but it is 91.

Check this rule against your invoice via the hosted API → https://api.attestwire.com/docs

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