The 2005 edition of this well-known reference work for the tax community provides an introduction to the application of the United States international taxation system to taxpayers investing or transacting business in the US and other countries. In a relatively brief and manageable form, it sets forth the principles adopted by the US in taxing US or foreign individuals and corporations as they invest, work, or carry on a trade or business in the US or abroad. The presentation focuses on ten specific aspects of the subject matter: general aspects of the corporation income tax, the individual income tax, the tax treatment of partnerships, trusts and estates, and accounting aspects; the basic jurisdictional principles adopted by the US with respect to application of its income tax to international investment and business transactions; the US rules for taxing foreign corporations, foreign partnerships, foreign trusts, and nonresident aliens on their business and investment income derived...