Glossary
E-Invoicing Glossary
A fast reference for compliance, integration, and operational terms used in modern e-invoicing.
Invoice Reference Number (IRN)
A unique identifier generated for each compliant e-invoice submission.
Peppol
A global interoperability framework for exchanging standardized business documents.
Universal Business Language (UBL)
A standardized XML document format used for structured e-invoices and related documents.
Continuous Transaction Controls (CTC)
A regulatory model where invoice data is checked or reported in near real-time to tax authorities.
Access Point Provider (APP)
A certified network provider that transmits compliant documents to the required exchange rails.
FIRS Validation
Rule checks that confirm invoice payloads meet required schema and compliance constraints before acceptance.
Keep Learning
Use these resources to move from definitions to implementation.