| ADB | Asian Development Bank |
| AEAT | Agencia Estatal de Administración Tributaria (Spain) |
| AI | Artificial Intelligence |
| ANGIE | Automated Network and Grouping Identification Engine |
| APA | Advance Pricing Agreement |
| API | Application Programming Interface |
| ATO | Australian Taxation Office |
| AUD | Australian Dollar |
| BAR | Board of Advance Rulings (India) |
| BAS | Business Activity Statement |
| BEPS | Base Erosion and Profit Shifting |
| CIAT | Inter-American Center of Tax Administrations |
| CIN | National Identity Card (Brazil) |
| CIT | Corporate Income Tax |
| COI | Community of Interest |
| COTS | Commercial-Off-The-Shelf |
| CoR | Certificate of Residence |
| CPFB | Central Provident Fund Board (Singapore) |
| CPC | Central Processing Centre |
| CRA | Canada Revenue Agency |
| CRS | Common Reporting Standard |
| CTC | Child Tax Credit |
| CVWMS | Collections Verification Workload Management System |
| DAC | Digital Access Code |
| DCE | Detection Controlled Estimation |
| DEPT | Digital Ecosystem and Partnership Team |
| DGFiP | General Directorate of Public Finances (France) |
| DID | Distributed Identifiers |
| DSP | Digital Service Provider |
| DTC | Disability Tax Credit |
| EITC | Earned Income Tax Credit |
| EU | European Union |
| EUR | Euro |
| FATCA | Foreign Account Tax Compliance Act |
| FAQs | Frequently Asked Questions |
| FSM | Foreign Source Matching |
| FTA | Forum on Tax Administration |
| FTE | Full Time Equivalent |
| GBP | Great Britain Pound |
| GDP | Gross Domestic Product |
| GST | Goods and Service Tax |
| GSTC | General Secretariat of Tax Committees (Saudi Arabia) |
| HMRC | HM Revenue and Customs (United Kingdom) |
| HNWI | High Net Wealth Individual |
| HR | Human Resources |
| HRR | High-Risk Refund |
| ICAP | International Compliance Assurance Programme |
| ICT | Information and Communication Technology |
| IMF | International Monetary Fund |
| IOTA | Intra-European Organisation of Tax Administrations |
| IRS | Internal Revenue Service (United States) |
| IRAS | Inland Revenue Authority of Singapore |
| ISORA | International Survey on Revenue Administration |
| ITR | Income Tax Return |
| ITTI | Inventory of Tax Technology Initiatives |
| KSA | Kingdom of Saudi Arabia |
| LTO/P | Large Taxpayer Office/Programme |
| MAP | Mutual Agreement Procedure |
| MNE | Multinational Enterprise |
| MOF | Ministry of Finance |
| MOM | Ministry of Manpower (Singapore) |
| MP | Medical Practicioner |
| MTF | Missing Trader Fraud |
| MTIC | Missing Trader Intra Community |
| NRA | National Revenue Agency (Bulgaria) |
| NTA | National Tax Agency (Japan) |
| NTCA | National Tax and Customs Administration (Hungary) |
| NTS | National Tax Service (Korea) |
| OCR | Optical Character Recognition |
| OECD | Organisation for Economic Co-operation and Development |
| OSP | One-Stop Payroll |
| OTP | One-Time Password |
| PAC | Payment Arrangement Calculator |
| PAYE | Pay-As-You-Earn |
| PAYGW | Pay As You Go Withholding |
| PIT | Personal Income Tax |
| RA-FIT | Revenue Administration Fiscal Information Tool |
| RFB | Receita Federal do Brasil |
| RPA | Robotic Process Automation |
| SDZ | Secure Drop Zone |
| SII | Servicio de Impuestos Internos (Chile) |
| SMS | Short Message Service |
| SPF | Stochastic Production Frontier |
| SSC | Social Security Contribution |
| SSTTP | Self-Serve Time to Pay |
| STA | State Taxation Administration (People’s Republic of China) |
| STA | Swedish Tax Administration |
| STI | State Tax Inspectorate (Lithuania) |
| STP | Single Touch Payroll |
| TAS | Tax Administration Series |
| TAS | Taxpayer Advocate Service (United States) |
| TF | Task Force |
| TFTC | Task Force on Tax Crimes and Other Crimes |
| TY | Tax Year |
| UHT | Underused Housing Tax |
| UK | United Kingdom |
| US | Unite States |
| VAT | Value Added Tax |
| VITARA | Virtual Training to Advance Revenue Administration |
| WHT | Withholding Tax |
| ZATCA | Zakat, Tax and Customs Authority (Saudi Arabia) |
Tax Administration 2024
Comparative Information on OECD and other Advanced and Emerging Economies
Tax Administration
