errorEN16931
BR-O-12:Inconsistent line VAT with "Not subject to VAT". All invoice lines must use VAT category O when the invoice VAT breakdow
Inconsistent line VAT with "Not subject to VAT". All invoice lines must use VAT category O when the invoice VAT breakdown uses "Not subject to VAT".
We can fix this automatically
AUTO-FIX1. Check VAT category consistency. 2. Ensure rates match categories. 3. Add missing identifiers.
No manual changes needed
Upload and Fix NowWhy This Error Matters
Invoice will be rejected. "Not subject to VAT" (category O) has strict rules: no VAT identifiers allowed, no other categories permitted, and exemption reason required. Non-compliance prevents validation.
Common Causes
- Invoice with O breakdown contains non-O category lines
- Line items have different category than O breakdown
- BT-151 on some lines is not O despite O breakdown
- Inconsistent VAT categorization between lines and breakdown
- All invoice lines must use O when O breakdown exists
Frequently Asked Questions
Inconsistent line VAT with "Not subject to VAT". All invoice lines must use VAT category O when the invoice VAT breakdown uses "Not subject to VAT".
Inconsistent line VAT with "Not subject to VAT". All invoice lines must use VAT category O when the invoice VAT breakdown uses "Not subject to VAT". You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, BR-O-12 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of BR-O-12 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.
See Also
Last updated: 16 January 2026
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