Deductions & credits

There are other ways to pay; you don't have to send payment with your return.

 

Regardless, you still have to print and mail your return with the 3115 attached and then mail another (signed) copy of the 3115 to the IRS.

 

See https://www.irs.gov/instructions/i3115#en_US_202212_publink63215hd0e217