NIF
TERMNúmero de Identificação Fiscal | Tax Identification Number
Cabo Verde taxpayer identification number used in fiscal registration, e-Fatura adhesion, taxpayer authentication and electronic fiscal-document validation.
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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Search by GFTR term. Use the jurisdiction selector to narrow the results to a country or jurisdiction.
2,867 terms
NIF
TERMNuméro d’Identification Fiscale | Tax Identification Number
Chadian taxpayer identification number used for tax administration, taxpayer identification and FEN compliance information, including display obligations linked to the electronic invoicing system.
NIF
TERMNúmero de Identificación Fiscal | Tax Identification Number
Spanish tax identification number used to identify taxpayers dealing with AEAT, VAT registration, invoices, tax returns and electronic tax services.
NIF
TERMNuméro d’Identification Fiscale | Tax Identification Number
Malagasy tax identification number used for taxpayer identification in tax administration and digital tax-service environments.
NIF
TERMNuméro d’Identification Fiscale | Tax Identification Number
Malian fiscal identification number used for taxpayer registration, taxpayer verification and DGI online tax-service access.
NIF / Numéro Impôt
TERMNuméro d’Identification Fiscale | Tax Identification Number
Congolese taxpayer identification number used for tax registration, taxpayer identification and Facture Normalisée content, including seller or customer identification where applicable.
NIF-IVA
TERMNúmero de Identificación Fiscal a efectos del IVA | VAT Identification Number
Spanish VAT identification number for EU VAT purposes, formed by adding the prefix ES to the Spanish NIF where the taxpayer is registered for intra-Community VAT operations.
NIFONLINE
TERMOnline Tax Identification Number Service
DGI online service used for taxpayer registration and online procedures relating to the Numéro d’Identification Fiscale.
NIK
TERMNomor Induk Kependudukan | Population Identification Number
Indonesian population identification number used in DJP taxpayer-identification and NPWP/NIK matching processes.
NIM
TERMNuméro d’Identification de la Machine | Machine Identification Number
Machine identification number associated with the certified electronic invoicing machine and used together with the Code SECeF/DGI for invoice identification and verification.
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.