INVESTMENTS IN FOREIGN MUTUAL FUNDS AND OTHER INVESTMENTS REQUIRE MANY SPECIAL IRS FORMS

Investments in foreign stocks, investment companies, foreign corporations that hold investements, etc.  from a U.S. tax point of view a could be for a U.S. individual, pension fund, or trust a paperwork nightmare .  If you are thinking of investing in Foreign stocks, please remember your friends at the IRS.  Any investment gains you make will be offset by IRS penalties if you do not do the proper paperwork.  To comply with the rules and keep the the US taxes down you should be filing form 8621 each year with your tax return.

Do not buy foreign mutual funds (funds not sold in the US).  These are PFICs (“Passive Foreign Investment Companies”) and they create a metric ton of complexity and accounting expense for your U.S. income tax returns.  (This, by the way, is one of the U.S. government’s little non-tariff trade barriers, designed to discourage U.S. capital being deployed into foreign capital markets).
Remember your FBAR.  The account you open that will buy the stock will need to be reported on Form TD F 90-22.1.

Remember Form 8938.  This is the new reporting form for foreign financial assets, largely duplicating the FBAR reporting requirements.

Foreign tax credit.  Undoubtedly a tax of some kind will be imposed for the foreign country where the investment is located. This will end up on an individual return on Form 1116.   This form will allow you to take a foreign tax  credit against your US income tax paid on the investment income.

What if you die while owning foreign investments? Be sure you have a plan for simple transfer of your accounts to your heirs if you die.  The cost of probate procedures in many foreign countries  could eliminate any stock market profits you make.  If you set up a foreign trust to try to reduce those foreign estate costs, you will then have to file forms 3520 and 3520A each year to report that trust.

NEW HIRE-FATCA ACT PASSED IN EARLY 2010 HAS SOME CHANGES FOR FOREIGN TRUSTS AND FIDEICOMISOS

A widely distributed article recently published by some attorneys contains some dire warnings about the  adverse income tax  consequences of the new foreign trust provisions in the HIRE-FATCA Act passed early in 2010 with respect to Fideicomisos (which the IRS currently requires file Forms 3520 and 3520A  because the IRS currently holds Fideicomisos  to be foreign trusts).  The conclusions in this article are  most likely not correct if the Fideicomiso has no income and contains property held for investment or held for personal use by the beneficiary (not a rental property). The IRS has not at this time ( nor is it likely to  in the near future)  issued any regulations further explaining the effect of the provisions of the new law on Fideicomisos and foreign trusts.  What the regulations or further guidance may say is pure speculation.  The general principles of trust taxation which are most likely to apply are stated in the next paragraph.

Under general trust tax law involving income and distributions from trusts to beneficiaries, unless the trust generates taxable income, the mere fact that personal use of foreign trust real property by a beneficiary is treated as a distribution to that beneficiary, will not cause the personal use to be taxed to the owner or beneficiary of the Fideicomiso because distributions from trusts are only taxable to the extent of the trusts DNI (Distributable Net Income).

You must keep in mind that  until the IRS issues further guidance and regulations on this new law, you cannot be certain they will not "twist" its interpretation of the new changes in a manner which is not consistent with prior long standing us trust tax principles. Therefore some uncertainty will exist until then.