NonResident Alien 得为在美国得到的利息，分红，租金啥的交税吧？！ 下面是税务局网上英文摘录，看FDAP inc

Nonresident aliens are generally subject to U.S. income tax only on their U.S. source income. They are subject to two different tax rates, one for effectively connected income, and one for fixed or determinable, annual, or periodic (FDAP) income. Effectively connected income (ECI) is earned in the U.S. from the operation of a business in the U.S. or is personal service income earned in the U.S. (such as wages or self-employment income). It is taxed for a nonresident at the same graduated rates as for a U.S. person. FDAP income is passive income such as interest, dividends, rents or royalties. This income is taxed at a flat 30% rate, unless a tax treaty specifies a lower rate.