I have a part ownership in a foreign corporation and required to attach Form 5471 to return. How do I do this with e-filing with TurboTax?

[DawnC0]

Unfortunately, TurboTax does not support 

• Form 5471 Information Return of U.S. Persons With Respect To Certain Foreign Corporations

Which IRS forms are not included in TurboTax?

Here is a link to the form and since your return is required as part of your tax return, you will need to file by mail.  https://www.irs.gov/pub/irs-pdf/f5471.pdf