General subject related
Brazil’s current 14-digit numeric CNPJ system is running out of combinations due to the growing number of registered entities. To expand capacity, the Federal Revenue (Receita Federal) is introducing a new alphanumeric CNPJ, using both letters and numbers.
Impact on Electronic Fiscal Documents:
The change affects all major electronic fiscal document systems—NF-e, NFC-e, and CT-e—which rely on the CNPJ for:
- Validation checks
- Access important generation
- Barcodes and QR codes
- XML schema identification
Required Technical Adjustments
- XML Schema Updates: Modify schemas to accept letters in the CNPJ field.
- Validation Rules: Update algorithms to verify alphanumeric CNPJs.
- Barcode & Access Key: Adapt barcode and access key formats to handle letters.
- System Updates: ERP, POS, fiscal printers, and middleware must all support the new format.
Implementation Timeline:
No official deadline yet, but Receita Federal has started initial steps. A transition period is expected, where numeric and alphanumeric CNPJs will coexist.
Next Steps for Businesses and Developers
- Track Receita Federal updates
- Review and adapt validation and encoding systems
- Test with updated environments
Inform and train IT and operations teams
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