The IRS has unveiled a secure web application, the International Data Exchange Service (IDES), for cross-border data sharing. IDES will allow Foreign Financial Institutions (FFIs) and tax authorities from other countries to transmit financial data on U.S. taxpayers’ accounts, via an encrypted pathway, to the IRS. The tool is part of the IRS’s effort to track U.S. taxpayer income globally. It is intended to assist FFIs and foreign tax authorities in their compliance with the U.S. Foreign Account Tax Compliance Act (FATCA). The act requires that financial institutions send to the IRS financial information of American account holders or face...