# BR-G-06 Export allowance VAT rate must be zero

In a document level allowance (BG-20) where the document level allowance VAT category code (BT-95) is "Export outside the EU" (G), the document level allowance VAT rate (BT-96) shall be 0 (zero).

## Problem Description

> **ERROR**: EN 16931 VAT category rule

## Context and Significance

A document level allowance with category G belongs to the export and carries no VAT, so its rate must be 0. In practice, the error occurs when a document level discount on an export invoice is created with the default domestic rate.

## Solution

Set the allowance TaxCategory/cbc:Percent (BT-96) to 0 whenever the document level allowance category is G.

- [Validate XML](/en/xrechnung-validator?source=resource&rule=BR-G-06)
- [Convert invoice](/en/pdf-to-xrechnung?source=resource&rule=BR-G-06)

## Valid Examples

- Document allowance with BT-95 = G and BT-96 = 0

## Invalid Examples

- Document allowance with BT-95 = G but BT-96 = 19

## Code Examples

### Valid XML
```
<cac:AllowanceCharge>
  <cbc:ChargeIndicator>false</cbc:ChargeIndicator>
  <cac:TaxCategory>
    <cbc:ID>G</cbc:ID>
    <cbc:Percent>0</cbc:Percent>
    <cac:TaxScheme><cbc:ID>VAT</cbc:ID></cac:TaxScheme>
  </cac:TaxCategory>
</cac:AllowanceCharge>
```

### Invalid XML
```
<cac:AllowanceCharge>
  <cbc:ChargeIndicator>false</cbc:ChargeIndicator>
  <cac:TaxCategory>
    <cbc:ID>G</cbc:ID>
    <cbc:Percent>19</cbc:Percent>
    <cac:TaxScheme><cbc:ID>VAT</cbc:ID></cac:TaxScheme>
  </cac:TaxCategory>
</cac:AllowanceCharge>
```

## Affected Fields

- [BT-95 Document level allowance VAT category code](/resources/xrechnung/bt-95-document-level-allowance-vat-category-code)
- [BT-96 Document level allowance VAT rate](/resources/xrechnung/bt-96-document-level-allowance-vat-rate)

## Related Rules

- [BR-G-05](/resources/kosit-validator-errors/br-g-05-export-line-vat-rate-zero)
- [BR-G-07](/resources/kosit-validator-errors/br-g-07-export-charge-vat-rate-zero)
- [BR-G-03](/resources/kosit-validator-errors/br-g-03-export-allowance-seller-vat-id-required)

## Validation Tools

- [Official KoSIT Validator](https://github.com/itplr-kosit/validator): Run the official KoSIT validator with the XRechnung configuration to check EN 16931 and XRechnung rules.
- [Convert PDF to XRechnung](/pdf-to-xrechnung): Find validation errors during conversion and review each correction.

## Related Resources

- [Official Specification](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [Test Suite](https://github.com/itplr-kosit/xrechnung-testsuite)
- [All validation errors](/resources/kosit-validator-errors): Overview of the EN 16931, XRechnung and Peppol validation rules explained here.