We advise businesses, investors, and individuals on cross-border tax matters with a strong focus on the Americas, helping clients navigate complex international transactions, structures, and regulatory environments.

Procopio advises businesses, investors, and individuals on international tax strategy, helping clients navigate the complexities of cross-border transactions, investments, and global operations. We support clients across the full lifecycle of international activity, from market entry and structuring through expansion and ongoing compliance. Our team works with U.S. companies expanding abroad and foreign companies entering the United States, structuring tax-efficient frameworks for cross-border mergers and acquisitions, joint ventures, and investments.
Our practice has a strong foundation in the U.S.–Mexico corridor and throughout Latin America, reflecting our presence in Southern California and longstanding relationships across the region. We also regularly advise clients on cross-border matters involving Asia and the European Union. We combine cross-border transactional experience with insight into international tax policy and enforcement. With attorneys in California and Washington, D.C., including former government officials, we help clients interpret treaty obligations, manage compliance, and anticipate regulatory developments.
We also advise global families, business owners, and executives on the tax implications of international mobility and investment, working in coordination with our corporate, tax, and private client teams to align business and personal strategies.
We regularly coordinate cross-border matters through established relationships with leading law firms worldwide, including our memberships in Meritas and LawExchange International, allowing us to support clients across jurisdictions without maintaining a physical presence in every location
We annually host the Procopio International Tax Institute (PITI), which brings together government officials, corporate leaders, and advisors from across the Americas to address emerging issues in international tax and cross-border business.
Our approach emphasizes practical, efficient execution, helping clients manage complexity while maintaining focus on business objectives and long-term value.
We provide integrated international tax services across the full lifecycle of cross-border transactions, operations, and investments.
We advise on the tax aspects of international transactions, helping clients structure investments and operations efficiently across jurisdictions.
We help clients expand into new markets and manage international operations with tax-efficient structures aligned with business objectives.
We advise on compliance with U.S. and international tax regimes, helping clients manage reporting obligations and reduce risk.
We advise individuals and families on the tax implications of global mobility, residency, and cross-border investment.
We represent clients in international tax disputes and coordinate strategies to resolve matters efficiently across jurisdictions.
We support clients operating across multiple jurisdictions through coordinated legal strategies and trusted global relationships.
For more than two decades, Procopio has hosted the Procopio International Tax Institute (PITI), a premier forum focused on the latest developments in cross-border tax and international business. Now in its third decade, the conference brings together government officials, corporate leaders, and leading tax practitioners from across the United States and Latin America to address evolving legal, regulatory, and policy challenges.
PITI reflects the core of our international tax practice. Through ongoing dialogue with policymakers, advisors, and industry leaders, we stay closely aligned with emerging trends in international taxation, including cross-border structuring, compliance, enforcement, and regulatory reform. The conference provides a platform for practical insights and real-time perspectives on developments shaping global tax strategy, particularly in the U.S.–Mexico and broader Americas context.
This commitment to thought leadership and collaboration informs how we advise clients. By engaging directly with those shaping tax policy and global business, we are able to provide guidance that is both current and grounded in real-world developments.
As early as possible. Tax considerations often affect how a transaction or expansion is structured, including entity selection, financing, and ownership. Early planning provides more flexibility and helps avoid inefficiencies or unintended consequences later.
Foreign companies should consider entity structure, tax exposure, reporting obligations, and how income will be treated under U.S. tax law and applicable treaties. Planning at the outset can help manage tax liability and simplify ongoing compliance.
We work with clients to structure outbound investments and operations in a tax-efficient manner, taking into account local tax regimes, treaty benefits, repatriation strategies, and coordination with foreign advisors. The goal is to align tax strategy with operational and business objectives.
Inbound planning focuses on foreign entities and individuals investing in or doing business in the United States. Outbound planning addresses U.S.-based clients expanding abroad. Each raises different considerations, including tax exposure, reporting requirements, and applicable treaty frameworks.
Tax treaties can significantly affect how income is taxed across jurisdictions, including reducing withholding taxes and helping avoid double taxation. Proper interpretation and application of treaties is critical in structuring transactions and managing ongoing operations.
Cross-border operations often trigger complex reporting requirements under U.S. and foreign tax regimes. These can include disclosures related to foreign entities, accounts, and transactions. Establishing a clear compliance strategy helps reduce risk and avoid penalties.
Individuals with cross-border investments, residency changes, or multinational family structures may face overlapping tax obligations. Planning can help address income, estate, and gift tax considerations, particularly in connection with relocation, investment, or succession.
Before a move occurs. Tax consequences can vary significantly depending on timing and structure. Early planning allows individuals to organize assets and investments in a way that minimizes tax exposure and simplifies compliance.
It is important to respond early and strategically. We help clients assess the issue, coordinate with relevant authorities, and develop a plan for resolution, often in coordination with our Tax Controversy team and local counsel in other jurisdictions.
We coordinate closely with trusted law firms in key jurisdictions, allowing us to provide integrated advice across borders. This approach ensures clients receive consistent, high-quality guidance while maintaining efficiency and flexibility.
International tax is constantly evolving, with changes driven by legislation, regulatory guidance, and global initiatives. Through active engagement with policymakers, industry leaders, and forums such as the Procopio International Tax Institute (PITI), we stay closely aligned with developments that impact our clients.
Companies often reassess counsel when expanding into new markets, undertaking cross-border transactions, or facing more complex compliance or dispute issues. This is particularly relevant when a more integrated, cross-border approach is needed.
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