@outbreath11 You would need to complete the form outside of TurboTax and then included it with your tax return. Your tax return can only be printed and mailed if you are including this form, it cannot be e-filed or attached to an e-filed tax return.
IRS Form 8621, Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund - https://www.irs.gov/forms-pubs/about-form-8621
