E-file IRS Form 7004

The IRS Form 7004 tax extension - known as "Application for Automatic Extension of Time to File Certain Business Income Tax, Information, and Other Returns" - no longer requires a signature or an explanation for an extension of time. When you e-file, you will receive a notification informing you that the IRS approved your extension.
Only one extension form needs to be filed on or before the due date of the appropriate tax return. Each return requires e-filing a separate Form 7004 tax extension.

General Instructions:

Purpose of IRS Form 7004

Use IRS Form 7004 to request an automatic extension of time to file certain business income tax, information, and other returns. The IRS approves the extension if you complete Form 7004 correctly. Make a proper estimate of any owed taxes if applicable, e-file the form by the original due date of the return which the Form 7004 applies, and pay any tax amounts that is due.

Automatic 5-Month Extension for Partnerships

If you are requesting for an automatic 5-month extension, enter the appropriate Form Code in the boxes on Line 1a to indicate the type of return for which you are requesting an extension. Enter only one Form Code - if you make a Form Code entry on Line 1a, do not make a Form Code entry on Line 1b.

Automatic 6-month extension for Corporations

If you are applying for an automatic 6-month extension, enter the appropriate Form Code in the boxes on Line 1b to indicate the type of return for which you are requesting an extension. Enter only one Form Code - if you make a Form Code entry on Line 1b, do not make a Form Code entry on Line 1a.

Note: If an association is electing to file Form 1120-H, U.S. Income Tax Return for Homeowners Associations, it should file for the extension on Form 7004 using the original form type assigned to the entity.

See the Instructions for Form 1120-H.