Who Must File.Generally, foreign trusts have an obligation to file a Form 3520-A with the IRS if the trust has a U.S. person who falls under the grantor trust rules.

Foreign trust reporting obligations can apply to a domestic trust established even within the US and the recent regulations make compliance more ... Tax Implications of Foreign Trust Classification.

Activities within a foreign trust are reported on IRS Form 3520 – Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts, or IRS Form 3520-a – Annual ...