Extension authorization signature

[WealthWise]

i want to send to my client signature docs to file an extension for his form 1120 but the software also generates the signature docs for the actual tax return

[BobKamman]

Form 7004 doesn't require a signature.  

[WealthWise]

If their is a payment along with the form 7004, it is required a signature.

[Skylane]

When the IRS requires a signature, they generally put a signature line on the form…

you can use an 8878 for efile with an ACH payment.  Just for your records