You may very well need to file the Form 3520, AnnualReturn ToReport Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts.
Please find more information for Form 3520 here...https://www.irs.gov/instructions/i3520 (instructions)
Please find more information on Form 3520 here... https://www.irs.gov/pub/irs-pdf/f3520.pdf (form)
TurboTax does not support Form 3520.
