CIS
TERMCertified Invoicing System
Electronic system used by a business for managing sales transactions as part of Sierra Leone’s Electronic Cash Register system.
Flagship reference
Global Fiscalisation Terminology Reference
A common language for fiscalisation, digital tax control, e-invoicing and e-reporting — built to make cross-jurisdiction discussion clearer and more precise.
144Jurisdictions
2867Terms
V1/2026Latest edition
Why the GFTR matters
Supporting a common language for global fiscalisation
Different jurisdictions use different terms for similar concepts. The GFTR brings clarity by providing consistent, evidence-based definitions and jurisdictional context — helping governments, tax authorities, businesses and technology providers communicate more effectively.
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2,867 terms
CIS
TERMCertified Invoicing System
Ghanaian E-VAT certified invoicing system through which GRA monitors the issuance of invoices by certifying invoices issued for accounting and VAT-return filing purposes.
CIS
TERMCertified Invoicing System
Invoicing component of the Rwanda EBM architecture, covering cash register, POS, software or other business system used to issue invoices and connected to an SDC or VSDC for fiscal control.
CIUS
TERMCore Invoice Usage Specification
Usage specification applied in the Finnish public-sector e-invoicing context to support compliance with the European e-invoicing standard and national validation requirements.
CIUS
TERMCore Invoice Usage Specification
Invoice-usage specification applied in Ireland’s public-sector e-invoicing environment, including national Peppol CIUS usage and the Local Government CIUS context.
CIUS
TERMCore Invoice Usage Specification
Usage specification that restricts or refines the EN 16931 semantic model for a specific jurisdiction, network, sector or implementation context.
CIUS-PT
TERMCore Invoice Usage Specification - Portugal
Portuguese CIUS specification used for structured electronic invoicing in the public-procurement / B2G e-invoicing environment.
CIVA
TERMConstancia de Exención de IVA | VAT Exemption Certificate
Electronic VAT exemption certificate issued through SAT’s FEL environment by exempt taxpayers where applicable.
Classification Code
TERMClassification Code
MyInvois code used to identify the category of products or services being billed as a result of a commercial transaction.
Clave de acceso
TERMAccess Key
Unique numeric key generated for each electronic tax document and used as the authorisation number under the offline scheme.
Who is it for
Who is it for
Governments & tax authorities
Useful for teams shaping fiscal policy, compliance architecture and regulatory communication.
Technology providers
Supports shared interpretation across product, compliance, implementation and commercial teams.
Researchers & analysts
Provides a reference point for comparative work, evidence synthesis and terminology alignment.
Associations & advisers
Helps explain country-specific language and reduce ambiguity in cross-border discussions.
How the GFTR supports work
How the GFTR supports work
Stronger cross-jurisdiction dialogue
Supports consistent understanding across different regulatory frameworks.
Better policy and implementation
Helps align discussions between governments, tax authorities and the private sector.
Practical, evidence-based definitions
Built from real-world systems and authoritative sources across jurisdictions.
A living reference
Regularly updated to reflect ongoing regulatory developments and emerging practices.