| ADB | Asian Development Bank |
| API | Application Programming Interface |
| AI | Artificial Intelligence |
| ARCA | Agencia de Recaudación y Control Aduanero (Argentinian tax administration) |
| ATAF | African Tax Administration Forum |
| ATO | Australian Taxation Office |
| CATA | Commonwealth Association of Tax Administrators |
| CAVALI | Central Securities Register and Depositary of Peru |
| CFAF | Communauté financière en Afrique Franc |
| CIAT | Inter-American Center of Tax Administrations |
| CIE | Electronic Identity Card (Italy) |
| CIN | National Identity Card (Brazil) |
| CIT | Corporate Income Tax |
| CRA | Canada Revenue Agency |
| CREDAF | Cercle de Reflexion et d’Echange des Dirigeants des Administrations Fiscale |
| DGI | Directorate General of Taxes (Côte d'Ivoire) |
| DI | Digital Identity |
| DIAN | Dirección de Impuestos y Aduanas Nacionales (Colombia) |
| DIV | Digital Identity Validation (Canada) |
| DJP | Directorate General of Taxes (Indonesia) |
| DLT | Distributed Ledger Technology |
| EDS | Electronic Declaration System (Latvia) |
| EFD | Electronic Fiscal Device |
| ERS | Eswatini Revenue Service |
| eTIMS | Electronic Tax Invoice Management System (Kenya) |
| EU | European Union |
| FRCS | Fiji Revenue and Customs Service |
| FTA | Forum on Tax Administration |
| GenAI | Generative Artificial Intelligence |
| HMRC | HM Revenue and Customs (United Kingdom) |
| HR | Human Resources |
| ICS | Information and Communication System |
| ICT | Information and Communication Technology |
| IOTA | Intra-European Organisation of Tax Administrations |
| IRAS | Inland Revenue Authority of Singapore |
| IRBM | Inland Revenue Board of Malaysia |
| ITR | Income Tax Return (India) |
| ITTI | Inventory of Tax Technology Initiatives |
| KRA | Kenya Revenue Authority |
| LLM | Large Language Model |
| ML | Machine Learning |
| MRA | Mauritius Revenue Authority |
| MSME | Micro, Small and Medium-sized Enterprises |
| MTCA | Malta Tax and Customs Administration |
| NLP | Natural Language Processing |
| NRA | National Revenue Agency (Bulgaria) |
| NTA | National Tax Agency (Japan) |
| NTS | National Tax Service (Korea) |
| OECD | Organisation for Economic Cooperation and Development |
| OTR | Togolese Revenue Authority |
| PAYE | Pay-as-you-earn |
| PIT | Personal Income Tax |
| PITAA | Pacific Islands Tax Administrators Association |
| POS | Point of Sale |
| RADIAN | Registro de la Factura Electrónica de Venta como Título Valor (Colombia) |
| RCV | Registro de Compras y Ventas (Purchase and Sales Ledger) |
| RFB | Federal Revenue of Brazil |
| SARS | South African Revenue Service |
| SAF-T | Standard Audit File for Tax |
| SII | Servicio de Impuestos Internos (Chilean tax administration) |
| SMS | Short Message Service |
| SPID | Public Digital Identity System (Italy) |
| SQM | Service Quality Monitoring |
| SRC | State Revenue Committee (Armenia) |
| SRS | State Revenue Service (Latvia) |
| STA | State Taxation Administration (People’s Republic of China) |
| STA | State Tax Service (Azerbaijan) |
| STA | Swedish Tax Agency |
| SUNAT | Superintendencia Nacional de Administración Tributaria (Peruvian tax administration) |
| TAM | Taxpayer Account Management |
| TIN | Taxpayer Identification Number |
| TPOS | Taxpayer Online Service |
| UAH | Ukrainian Hryvnia |
| USSD | Unstructured Supplementary Service Data |
| VAT | Value Added Tax |
| ZRA | Zambia Revenue Authority |
Digitalisation and Digital Transformation in Tax Administrations
Regional Trends and Insights
