Concepción Global

A Law Firm serving as a bridge between the Americas and Europe

Practice Areas

International Commercial Arbitration


U.S. citizens and residents are taxed on their worldwide income, regardless of where they live. American individuals living abroad — whether in Spain, France, Latin America, or elsewhere — face significant U.S. tax reporting obligations and planning opportunities, including PFIC exposure from foreign investment vehicles, Net Investment Income Tax, and dual-filing compliance. We help U.S. persons structure their global affairs in a tax-efficient and fully compliant manner.

International Tax Planning


In today’s interconnected world, numerous businesses and individuals find themselves operating well beyond the borders of their home countries. Concepción Global’s tax team helps transform these once daunting borders into gateways of opportunity.

Tax Controversy


Our tax team is composed of attorneys experienced in advising and representing taxpayers before federal, state and local taxing authorities and in federal and state courts in which tax disputes are litigated. 

Investor-State Arbitration


Advising and representing investors and states in treaty-based disputes under ICSID, UNCITRAL, and other frameworks involving bilateral and multilateral investment treaties.

Outbound Tax Planning


International Tax Compliance


The U.S., in conjunction with other jurisdictions, has pledged to enhance transparency in sharing financial and tax information with other jurisdictions. As a result, taxpayers face a higher risk of audit or investigation. The tax team at Concepción Global can advise clients in comprehending the existing programs, procedures, and initiatives, with the goal of helping clients minimizing any civil or criminal tax penalties.

Inbound Tax Planning


Non-U.S. individuals and businesses investing in or relocating to the United States face a complex web of U.S. tax rules that, if not properly navigated, can result in unexpected tax costs, withholding, and penalties. We advise foreign nationals, non-resident aliens, and internationally mobile individuals on structuring their U.S. activities and investments in a tax-efficient manner.

Representing parties in complex cross-border commercial disputes under ICC, ICDR/AAA, UNCITRAL, and ad hoc rules across multiple jurisdictions and legal systems

Expatriation Tax Planning


Renouncing U.S. citizenship or relinquishing a green card after long-term residency triggers one of the most complex and consequential tax events in U.S. tax law — the exit tax under Section 877A. Without careful planning, expatriation can result in a deemed sale of all worldwide assets and significant tax liability. We guide clients through every stage of the expatriation process, from initial analysis through final compliance.

Concepción Global is a distinguished law firm with an international presence and strategic offices in Miami and Madrid.

We specialize in various facets of international law, including international business disputes, commercial and investor-state arbitration, international tax and estate planning, as well as civil and criminal tax controversies.

Blue logo icon image. Tax Law Firm And Arbitration And International Tax Compliance in Miami. U.S. Tax Attorney That Helps With International Investments.