ASiS + e-Factura ANAF — Top 10 CIUS-RO semantic errors for 2026
Why ASiS XML files can be syntactically valid yet rejected by ANAF. Top 10 CIUS-RO semantic errors and how the Smart Layer validator eliminates them pre-flight.
Ionut Mihaescu — Full Stack Developer Azuvio · 2026-11-28 · 11 min · ERP & Integrations
Context: XML schema-valid ≠ ANAF-accepted
ASiS generates UBL 2.1 files according to standard schemas. However, ANAF (the Romanian tax authority) applies over 40 additional CIUS-RO semantic rules. Typical mid-market result: 2-5% rejection rate (at 3,000 invoices/month = 60-150 invoices/month requiring manual correction).
Top 10 frequent errors
1. BR-CO-10: Sum of allowances ≠ sum of lines (0.01 rounding error)
2. BR-CO-13: Total VAT per rate ≠ sum of line VAT for that rate
3. BR-RO-A10: Buyer's RO VAT ID missing the 'RO' prefix or containing spaces
4. BR-S-08: Reverse charge without the 'AE' VAT code on lines
5. BR-IC-11: Intra-community supply without code 'K' + country code
6. BR-CO-04: B2G invoice missing the contract reference
7. BR-DEC-12: Applied discount % without the correct base value
8. BR-AE-08: Extra-EU export without code 'G' + EORI number
9. BR-CO-25: Due date < issuance date
10. BR-RO-080: Missing or invalid ANAF payment type code
The real cost
Mid-market 3,000 invoices/month × 3% rejection rate = 90 invoices × 20 min = 30h/month correction effort + penalty risks + disrupted cash flow.
The Solution: Smart Layer Compliance Validator
Pre-flight check on the ASiS XML before submission to ANAF. If it fails, it returns a list of errors + fix suggestions. Zero changes needed in ASiS. Rejection rate <0.5%, manual effort reduced by 94%.
Integration
Hook via ASiS issuance webhook or REST API. Error dashboard per issuer + per rule. Audit-ready.
See «ASiS + SAF-T D406».