Forms that must be mailed in

[sfordstark]

Which Federal Tax Forms must be submitted by mail instead of electronically? If I need to submit any of these forms, does that mean that I must submit my entire federal tax return by mail? Or can I just mail in the specific forms that must be submitted by mail, and submit the rest electronically?

[MarilynG1]

If your tax return contains a form that is not eligible for Efile, you need to mail in your entire return.

Click this link for a list of Federal Tax Form Availability so you can check if the forms you need are available for Efile.