Regulatory PETshop is the first in a series of hands-on workshops exploring how privacy-enhancing technologies (PETs) are being integrated into compliance and financial services, while addressing the balance between data protection and regulatory oversight. The workshop will feature keynote remarks from Hester Peirce, Commissioner of the U.S. Securities and Exchange Commission (SEC).

This invitation-only session will convene policymakers, financial regulators, technologists, consumer advocates, and industry experts for structured, interactive discussions, alongside live demonstrations of decentralized identity, on-chain compliance, and privacy-preserving infrastructure.

Georgetown Law and the Institute of International Economic Law are pleased to invited you to "Tax Matters in International Investment Arbitration: General Questions, Jurisdictions, Merits and Remedies" on June 10, 2026.

As tax disputes continue to increase globally, foreign investors are placing greater reliance on investment treaty protection. From a dispute prevention perspective, treaty guarantees are for example increasingly assessed when entering new markets. Moreover, investors have, in a growing number of cases, turned to Investor-State Dispute Settlement (ISDS) to challenge taxation measures adopted by host states that affect their investments.

Tax-related investment disputes raise a wide range of issues, including alleged breaches of legitimate expectations and legal certainty, arbitrary or discriminatory treatment, violations of due process, indirect expropriation, and claims arising out of investment contracts. Over the past decade, a number of landmark arbitral awards have contributed to shaping investment treaty practice in taxation matters. At the same time, new questions continue to emerge, in particular as arbitral tribunals interpret tax carve-outs and apply substantive standards of protection in tax-related contexts. The interaction between these standards, the principles of the international tax system and global tax standards—increasingly shaping state conduct in cross-border taxation —has also begun to feature more prominently in arbitral awards.

At the policy level, developments have been equally significant. On the one hand, increasingly sophisticated tax carve-outs and filter mechanisms—sometimes incorporating references to the principles of international tax law—are being included in investment agreements. On the other hand, the relationship between investment arbitration and taxation has recently been the subject of focused work by the UN Committee of Experts on International Cooperation in Tax Matters. In addition, tax issues may arise incidentally in investment disputes that are not primarily tax-driven, for instance in relation to the taxation of arbitral awards.

Tax Matters in International Investment: General Questions, Jurisdiction, Merits and Remedies (Kluwer), comprising 18 chapters authored by leading experts from both the international tax and investment law communities, provides a comprehensive analysis of these developments. The volume offers in-depth research, practical insights, and policyoriented perspectives on the role of taxation in investment arbitration.

During this half-day Book Launch conference contributing authors and prominent invited speakers will engage with its subject matter.

The International Tax Policy Forum and the Institute of International Economic Law are pleased to invite you to attend the 10th Annual ITPF Conference on "Tax Sovereignty in 2026 and Beyond" on June 12, 2026 from 8:00 a.m. to 1:00 p.m. ET.

President Trump issued an order declaring that "any commitments made by the prior administration on behalf of the United States with respect to the Global Tax Deal have no force or effect within the United States," absent Congressional action. The order directs the U.S. Department of the Treasury to investigate whether countries are out of compliances with U.S. tax treaties or have implemented tax rules that are extraterritorial or disproportionately affect U.S. companies.

Under threat of retaliatory taxation from Congress, the Treasury Department negotiated a "side-by-side" agreement exempting U.S. companies from two of the three operative global minimum tax rules under Pillar Two to achieve its stated goal of protecting U.S. tax sovereignty. Critics viewed this as undermining a historic achievement in international tax cooperation among 140 countries.

This half-day conference will consider the concept of national "tax sovereignty," its operation in a globalized economy, and the scope of multilateralism in tax policy.