The U.S. IRS recently published three international practice units: Portfolio Debt Exemption – Requirements and Exceptions, which discusses U.S. source interest income that qualifies for the portfolio debt exemption and the qualification requirements, as well as the types of interest and foreign recipients that will not qualify for the exemption; Employee Share of Employment Taxes - U.S. Citizens and Resident Aliens Working Abroad, which discusses the Social Security and Medicare (FICA taxes) payment obligations for U.S. citizens and resident aliens working abroad for an American employer and when working abroad for a foreign affiliate of an American employer; and Self-Employment...