BR-Z-07:When using this VAT category, the VAT rate must be 0 (zero). This category...
Fix: Invoice Navigator automatically fixes this issue by correcting the `cac:AllowanceCharge` element in your Invoice (BR-Z-07). Upload your invoice to fix this automatically.
When using this VAT category, the VAT rate must be 0 (zero). This category does not have a positive tax rate (applies to `cac:AllowanceCharge`, rule BR-Z-07).
Engine Classification
Set VAT rate to 0% for zero-rated document-level charges per EN16931 BR-Z-07
Confidence: 95% · Applied automatically in pipeline
What is BR-Z-07?
BR-Z-07 is a fatal validation rule defined in the EN 16931 specification. It validates the Percent element under TaxCategory in the UBL invoice XML.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Target path: //cac:AllowanceCharge[cbc:ChargeIndicator='true']/cac:TaxCategory[cbc:ID='Z']/cbc:Percent
Why This Error Matters
Invoice will be rejected. Zero rated VAT (category Z) requires seller VAT registration, 0% rate, and correct breakdown. Zero rate is different from exemption - it still requires tax compliance.
BR-Z-07 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.
Validator Behavior
- ·Causes invoice rejection
- ·Error returned: BR-Z-07
- ·Specification: EN 16931
How to Fix It
Locate the field
Check cbc:Percent at //cac:AllowanceCharge[cbc:ChargeIndicator='true']/cac:TaxCategory[cbc:ID='Z']/cbc:Percent. The current value does not meet the rule requirements for BR-Z-07.
Set the correct value
Invoice Navigator automatically fixes this issue by correcting the `cac:AllowanceCharge` element in your Invoice (BR-Z-07).
Re-validate your invoice
Upload the corrected invoice to confirm BR-Z-07 is resolved.
Before / After
<Invoice> <cac:AllowanceCharge>INVALID_CODE</cac:AllowanceCharge> </Invoice>
<Invoice> <cac:AllowanceCharge>VALID_CODE</cac:AllowanceCharge> </Invoice>
Technical Reference
//cac:AllowanceCharge[cbc:ChargeIndicator='true']/cac:TaxCategory[cbc:ID='Z']/cbc:PercentCommon Causes
- ·Zero rated charge has non-zero VAT rate
- ·BT-103 must be 0 for category Z charge
- ·Document charge Z category has positive rate
- ·Zero rate charge needs 0% VAT percentage
- ·Charge rate field not zero for Z category
Seeing this in production? The API handles BR-Z-07 automatically. See the fix response →
Frequently Asked Questions
When using this VAT category, the VAT rate must be 0 (zero). This category does not have a positive tax rate (applies to `cac:AllowanceCharge`, rule BR-Z-07).
Invoice Navigator automatically fixes this issue by correcting the `cac:AllowanceCharge` element in your Invoice (BR-Z-07). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, BR-Z-07 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of BR-Z-07 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
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Last updated: 14 April 2026
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