"If you are filing a current year return, mark the appropriate name change box of the Form 1120 type you are using:
Form 1120: Page 1, Line E, Box 3
Form 1120-S: Page 1, Line H, Box 2
If you have already filed your return for the current year, write to us at the address where you filed your return to inform us of the name change. In addition:
I haven't filed yet, so I checked "Form 1120-S: Page 1, Line H, Box 2", but I am still not seeing where to enter the new name if I must file with the old name which IRS has on file. Of course, a letter is always an option, but I'd rather know how to do it when actually filing the forms.
