Gift tax in the United States
If a person is a non-resident alien for purposes of gift tax, taxation of gifts is determined in a different way. If the property is not located in the U.S., there is no gift tax. If it is intangible property, such as shares in U.S. corporations and interests in partnerships or LLCs, there is no gift tax.
Tax withholding in the United States
Companies and individuals who make certain types of payments to foreign persons must withhold Federal income tax on those payments. Foreign persons include nonresident aliens, foreign corporations, and foreign partnerships. Payments subject to withholding include compensation for services, interest, dividends, rents, royalties, annuities, and certain other payments. Tax is withheld at 30% of the gross amount of the payment. This withholding rate may be reduced under a tax treaty. This tax withheld is usually considered a final determination and payment of tax, requiring no further action or tax return by the foreign person.