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BR-AE-08: Taxable amount of category AE (BT-116) does not match lines and allowances/charges

Official message

[BR-AE-08] In a VAT breakdown (BG-23) where the VAT category code (BT-118) is "Reverse charge" the VAT category taxable amount (BT-116) shall equal the sum of Invoice line net amounts (BT-131) minus the sum of Document level allowance amounts (BT-92) plus the sum of Document level charge amounts (BT-99) where the VAT category codes (BT-151, BT-95, BT-102) are "Reverse charge".

EN 16931 (CII) · Error · Message language: English · Version: xrechnung-3.0.2-validator-configuration-2026-08-31

[BR-AE-08] In a VAT breakdown (BG-23) where the VAT category code (BT-118) is "Reverse charge" the VAT category taxable amount (BT-116) shall equal the sum of Invoice line net amounts (BT-131) minus the sum of Document level allowance amounts (BT-92) plus the sum of Document level charge amounts (BT-99) where the VAT category codes (BT-151, BT-95, BT-102) are "Reverse charge".

EN 16931 (UBL) · Error · Message language: English · Version: xrechnung-3.0.2-validator-configuration-2026-08-31

[BR-AE-08] In a VAT breakdown (BG-23) where the VAT category code (BT-118) is "Reverse charge" the VAT category taxable amount (BT-116) shall equal the sum of Invoice line net amounts (BT-131) minus the sum of Document level allowance amounts (BT-92) plus the sum of Document level charge amounts (BT-99) where the VAT category codes (BT-151, BT-95, BT-102) are "Reverse charge".

Factur-X / ZUGFeRD EN 16931 · Error · Message language: English · Version: Factur-X 1.08 / ZUGFeRD 2.4
Severity
Error The invoice is invalid and may be rejected by the recipient.
Applies to
EN 16931 (CII), EN 16931 (UBL), Factur-X / ZUGFeRD EN 16931
Affected fields
BG-23, BT-118, BT-116, BT-131, BT-92, BT-99, BT-151, BT-95, BT-102

What does this mean?

In a VAT breakdown (BG-23) with category AE (Reverse charge) the VAT category taxable amount (BT-116) must equal the sum of the invoice line net amounts (BT-131) minus the document level allowances (BT-92) plus the document level charges (BT-99) with category AE. The amount deviates from it.
The sums are taken over all entries of category AE, regardless of the rate. In CII the official check tolerates a deviation of less than one currency unit, in UBL the amount must match exactly.

Typical causes

The taxable amount was entered manually or not recalculated after the lines were changed.
A document level allowance or charge of category AE was not taken into account or with the wrong sign.
The lines of category AE are split over several breakdowns (e.g. with and without rate); each contains only part of the sum (see also BR-AE-01).

How to fix the error

Recalculate BT-116 per category: sum of BT-131 of the lines + sum of BT-99 of the charges − sum of BT-92 of the allowances, only entries with category AE, rounded to two decimals.
CII: ram:ApplicableHeaderTradeSettlement/ram:ApplicableTradeTax/ram:BasisAmount, UBL: cac:TaxTotal/cac:TaxSubtotal/cbc:TaxableAmount.
Generate and validate the invoice again.

In E-Rechnungsfreund

In the invoice form, the taxable amount per VAT category and rate (BT-116) is calculated from the invoice lines and the allowances and charges when the XML is generated, and rounded to two decimals; the value in the field "Nettobetrag (BT-116)" in section "Steueraufstellung (BG-23)" (VAT breakdown) is not used for this. Enter amounts of allowances/charges with no more than two decimals.
Enter the same rate 0 for all lines and allowances/charges of category AE (fields "Steuersatz % (BT-152)" and "St-Satz %", "Experte" view) so that only one breakdown results.

Example

Wrong

<!-- Lines AE: 600.00 + 400.00, allowance AE: 50.00 -->
<ram:ApplicableTradeTax>
  <ram:CalculatedAmount>0.00</ram:CalculatedAmount>
  <ram:TypeCode>VAT</ram:TypeCode>
  <ram:BasisAmount>1000.00</ram:BasisAmount>
  <ram:CategoryCode>AE</ram:CategoryCode>
  <ram:ExemptionReasonCode>VATEX-EU-AE</ram:ExemptionReasonCode>
  <ram:RateApplicablePercent>0</ram:RateApplicablePercent>
</ram:ApplicableTradeTax>

Correct

<!-- Lines AE: 600.00 + 400.00, allowance AE: 50.00 -->
<ram:ApplicableTradeTax>
  <ram:CalculatedAmount>0.00</ram:CalculatedAmount>
  <ram:TypeCode>VAT</ram:TypeCode>
  <ram:BasisAmount>950.00</ram:BasisAmount>
  <ram:CategoryCode>AE</ram:CategoryCode>
  <ram:ExemptionReasonCode>VATEX-EU-AE</ram:ExemptionReasonCode>
  <ram:RateApplicablePercent>0</ram:RateApplicablePercent>
</ram:ApplicableTradeTax>
For developers: test expression per syntax

EN 16931 (CII) (CII)

Context: //rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:ApplicableTradeTax/ram:CategoryCode[. = 'AE'][upper-case(../ram:TypeCode) = 'VAT']

(../ram:BasisAmount -1 < (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement[ram:ApplicableTradeTax/ram:CategoryCode = 'AE']/ram:SpecifiedTradeSettlementLineMonetarySummation/xs:decimal(ram:LineTotalAmount))*10*10)div 100) + (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=true() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount[1]))*10*10)div 100) - (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=false() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount[1]))*10*10)div 100)) and (../ram:BasisAmount +1 > (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement[ram:ApplicableTradeTax/ram:CategoryCode = 'AE']/ram:SpecifiedTradeSettlementLineMonetarySummation/xs:decimal(ram:LineTotalAmount))*10*10)div 100) + (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=true() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount[1]))*10*10)div 100) - (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=false() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount[1]))*10*10)div 100))

EN 16931 (UBL) (UBL)

Context: /*/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory[normalize-space(cbc:ID) = 'AE'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT']

(exists(//cac:InvoiceLine) and (xs:decimal(../cbc:TaxableAmount) = (sum(../../../cac:InvoiceLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:LineExtensionAmount)) + sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=true()][cac:TaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:Amount)) - sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=false()][cac:TaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:Amount))))) or (exists(//cac:CreditNoteLine) and (xs:decimal(../cbc:TaxableAmount) = (sum(../../../cac:CreditNoteLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:LineExtensionAmount)) + sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=true()][cac:TaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:Amount)) - sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=false()][cac:TaxCategory/normalize-space(cbc:ID)='AE']/xs:decimal(cbc:Amount)))))

Factur-X / ZUGFeRD EN 16931 (CII)

Technical ID in the source: FX-SCH-A-000227

Context: //rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:ApplicableTradeTax/ram:CategoryCode[. = 'AE']

(../ram:BasisAmount -1 < (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement[ram:ApplicableTradeTax/ram:CategoryCode = 'AE']/ram:SpecifiedTradeSettlementLineMonetarySummation/xs:decimal(ram:LineTotalAmount))*10*10)div 100) + (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=true() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount))*10*10)div 100) - (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=false() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount))*10*10)div 100)) and (../ram:BasisAmount +1 > (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement[ram:ApplicableTradeTax/ram:CategoryCode = 'AE']/ram:SpecifiedTradeSettlementLineMonetarySummation/xs:decimal(ram:LineTotalAmount))*10*10)div 100) + (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=true() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount))*10*10)div 100) - (round(sum(/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator=false() and ram:CategoryTradeTax/ram:CategoryCode='AE']/xs:decimal(ram:ActualAmount))*10*10)div 100))

Related validation rules

  • BR-AE-01: Not exactly one VAT breakdown for category AE
  • BR-AE-02: Seller or buyer identifier missing for invoice line with category AE
  • BR-AE-03: Seller or buyer identifier missing for document level allowance with category AE
  • BR-AE-04: Seller or buyer identifier missing for document level charge with category AE
  • BR-AE-05: VAT rate of invoice line with category AE is not 0
  • BR-AE-06: VAT rate of document level allowance with category AE is not 0

Last updated:
Explanation of the validation rule, not legal or tax advice.