Modernized e-File Test Package for Forms 1120/1120-S/1120-F/7004

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Publication 4162 Modernized e-File Test Package for Forms 1120/1120-S/1120-F/7004

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Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B


Forms and Instructions

Relevant Forms

Form 7004 Application for Automatic Extension of Time To File Certain Business Income Tax, Information, and Other Returns