# BR-AE-08

Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.

- Country: EU
- Syntax: UBL
- Severity: fatal
- Statement language: en
- Last verified: 2026-10-17

## Official statement

> 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".

Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-AE-08/

Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL

Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-17.

## Plain-language reading

In a VAT breakdown whose category is "Reverse charge", the taxable amount (BT-116) must equal the sum of invoice line net amounts (BT-131), minus document-level allowance amounts (BT-92), plus document-level charge amounts (BT-99), counting only lines, allowances, and charges in that same category. The published test compares the taxable amount to that sum where the category code is AE.

## What to change

Set BT-116 on the AE breakdown to the AE line net amounts, minus the AE allowances, plus the AE charges.

## Illustration

Illustration of the condition in the official statement. Not an example published by the source.

**Fails the stated condition.** AE lines net to 100, there is an AE allowance of 10, and the AE breakdown taxable amount is 100.

**Passes the stated condition.** AE lines net to 100, there is an AE allowance of 10, and the AE breakdown taxable amount is 90.

## Published context and test

Copied from the source. Not reimplemented on this page.

```
/*/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)))))
```

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