The rapid transition towards “Tax Administration 3.0” marks a profound paradigm shift in global revenue mobilization, characterized by the integration of artificial intelligence, machine learning, robotic process automation, and machine-to-machine data sharing. While these unprecedented technological advancements promise enhanced efficiency, drastically reduced compliance burdens, and the near-real-time mitigation of tax evasion, they simultaneously introduce severe risks to fundamental taxpayer rights. This exhaustive research report provides a granular analysis of the international legal standards governing taxpayer protections in the contemporary digital era. By synthesizing recent jurisprudential developments—including landmark rulings from the European Court of Human Rights and the Court of Justice of the European Union — the analysis delineates the highly precarious balance between expanding administrative enforcement powers and the preservation of privacy, data protection, and due process. The report rigorously examines the regulatory frictions surrounding automated decision-making and algorithmic profiling, critically scrutinizing the systemic implications of the General Data Protection Regulation (GDPR) and the European Union Artificial Intelligence Act. Furthermore, the analysis traces the historical evolution of taxpayer charters, culminating in the contemporary international push for a “Digital Taxpayer Bill of Rights,” which strictly advocates for human-in-the-loop oversight, algorithmic explainability, and protection against digital disenfranchisement. Finally, the report highlights the critical dimension of international tax cooperation, emphasizing the distinct capacity challenges faced by jurisdictions in the Global South, the privacy implications of the Automatic Exchange of Information (AEOI), and the socio-economic ramifications of the digital divide. Ultimately, the synthesis establishes that sustainable and equitable digital tax governance requires an architecture fundamentally anchored in human rights, absolute transparency, and algorithmic accountability.

Digital Tax Administration, Tax Administration 3.0, Taxpayer Rights

Article 29 Working Party (2015) Statement on automatic inter-state exchanges of personal data for tax purposes. European Commission.

ATAF (2023) The Digital Transformation of Tax Administrations. African Tax Administration Forum.

Bipartisan Policy Center (2024) High-Risk, High-Reward AI: The EU AI Act approach.

Center for Taxpayer Rights (2024) Toward a Digital Taxpayer Bill of Rights. 9th International Conference on Taxpayer Rights, Antwerp.

CESR (2025) Aligning tax cooperation with human rights in the UN Tax Convention. Center for Economic and Social Rights.

CFE Tax Advisers Europe (2018) Opinion Statement CFE 1/2018 on the Importance of Taxpayer Rights Codes and Charters on Tax Good Governance.

CIAT (2024) Systems Integration in Tax Administration 3.0. Inter-American Center of Tax Administrations.

DigiTax Centre (2024) Conference “Toward a Digital Taxpayer Bill of Rights” 2024. University of Antwerp.

ECHR (1950) European Convention on Human Rights. Council of Europe.

ECHR (2002) Janosevic v. Sweden. European Court of Human Rights..

ECHR Guide (2023) Guide on Article 8 of the European Convention on Human Rights: Right to respect for private and family life, home and correspondence. Council of Europe.

ECJ (2014) Digital Rights Ireland Ltd v Minister for Communications, Marine and Natural Resources and Others. Court of Justice of the European Union.

Emerald (2024) ‘Digital taxation, artificial intelligence and Tax Administration 3.0’, Asian Review of Accounting, 32(2).

EU AI Act (2024) Artificial Intelligence Act, Annex III. European Union.

GDPR (2016) Regulation (EU) 2016/679 (General Data Protection Regulation). European Parliament and Council..

Glasgow University (2025) Towards Fiscal Justice: International Human Rights Law. PhD Thesis..

Grau, A. (2021) ‘Automated decision-making in tax administration’, Northwestern Journal of Technology and Intellectual Property..

Hadwick, D. (2024) ‘EU AI Act and Tax Administration’, European Papers, 2024(3).

Hatfield, M. (2024) ‘Digital technologies, tax administration, and taxpayer rights’, Tax Research Network Blog.

Hunton Andrews Kurth (2024) CJEU Rules that GDPR Prohibition on Automated Decision-Making Applies to Credit Scoring.

IADB (2024) The Future of Tax Administrations Lies in the Intelligence Generated by Big Data. Inter-American Development Bank.

IBFD (2024) 2023 Yearbook on Taxpayers’ Rights. IBFD Observatory on the Protection of Taxpayers’ Rights.

IBFD (2025) 2024 Yearbook on Taxpayers’ Rights. IBFD Observatory on the Protection of Taxpayers’ Rights.

IBFD Tax News (2025) G-24 supports net income taxation for digital services. IBFD Knowledge Hub.

IJCA (2024) ‘From Audit to Algorithm: Ethical Challenges of AI Inclusion in Public Tax Administration’, International Journal of Computer Applications, 187(69).

IJECM (2023) Digital Transformation in Tax Administrations: Evidence from Africa. International Journal of Economics, Commerce and Management.

IMF (2024) Understanding artificial intelligence in tax and customs administration. IMF Technical Note 2024/006.

IMF (2025) Strengthening Tax Governance through Tax Legal Design. IMF Working Paper WP/25/017.

International Journal for Public Policy, Law and Development (2025) ‘Artificial Intelligence and Algorithms in Tax Auditing by the Tax Administration Service in Mexico: Analysis of Potential Biases’, 2(3).

Kluwer International Tax Blog (2025) UN Tax Committee Confronts New Challenges.

Legal Nodes (2024) EU AI Act 2026 updates: compliance requirements.

Matheson (2024) CJEU delivers important decision on automated decision-making under the GDPR.

OECD (2023) Tax Administration 2023: Comparative Information on OECD and other Advanced and Emerging Economies. OECD Publishing, Paris.

OECD (2024) Governing with Artificial Intelligence: AI in Tax Administration. OECD Publishing.

OECD (2024) Tax Administration 3.0: The Digital Transformation of Tax Administration. OECD Publishing.

OECD (2024) Tax Administration Digitalisation and Digital Transformation Initiatives. OECD Publishing.

Rachovista, A. and Johann, N. (2022) ‘The human rights implications of the use of AI in the digital welfare state: lessons learned from the Dutch SyRI Case’, Human Rights Law Review.

Revista Tecnica Tributaria (2020) Philip Baker Model Taxpayer Charter digital tax administration.

Ropes & Gray (2024) Computer says no: CJEU rules on automated decision making.

SCIRP (2024) Proposed Digital Taxpayer Bill of Rights. Scientific Research Publishing.

Stanford TTLF (2024) Tax Administration 3.0: AI and Taxpayer Rights. TTLF Working Paper 124.

Tax Ombud SA (2023) Fair Play: Digital capacity-building. Office of the Tax Ombud, South Africa.

Thomson Reuters (2024) Academics: AI tech can help close tax admin digital divide.

UN DESA (2024) Digitalization of Revenue Authorities and Annexes. United Nations Department of Economic and Social Affairs.

UN Tax Committee (2023) Co-Coordinators’ Report on Taxation Issues Related to the Digitalized and Globalized Economy. United Nations.