1040-US ELF: Documents attached as PDF files under MeF Program (FAQ)

Alerts and notices

Question

What documents can I attach as PDF files under the 1040 Modernized e-File (MeF) Program?

Answer

Refer to IRS Publication 4164 for information about binary attachments for electronic files.

Refer to Recommended Names for PDF Files Attached to 1040 MeF Submissions for IRS recommendations for naming PDF files of supporting documents.

Related topic: 1040-US ELF: Electronic filing FAQs

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