It is important for global citizens, businesses, and professional advisors to understand the relationship between U.S. tax laws and foreign laws. The U.S. tax system taxes its citizens on worldwide income, regardless of where they live, which can create challenges for those navigating foreign legal frameworks. However, there is no consistent guidance from U.S. courts and the IRS on how to consider foreign laws in cross-border situations, leading to uncertainty for taxpayers and practitioners. It is crucial for tax advisors to be able to navigate these issues and determine when foreign laws may impact the U.S. tax treatment of a transaction. Additionally, US taxpayers must report foreign financial assets annually or face penalties and an open statute of limitations on their tax return.