Form 3520: This form is required whenever you receive one or more gifts from one or more foreign individuals during the calendar year when the aggregate fair market value exceed $100,000. [See my Form 3520 video for more details] In our example, you received foreign gifts worth $225,000 reportable on or before the due date of your 2020 income tax return, either April 15, 2021 or October 15. 2021. Since you did not timely file Form 3520, you could be subject to huge penalties, 5% per each month the return is late, to a maximum of 25%. Form 3520 is a separate and independent filing obligation and must be paper-filed with the IRS in Odgen, Utah. The statute of limitations for IRS to assess this penalty is suspended until three years after the return is filed.