I'm filling this year by mail, I printed out my taxes according to the instruction, do I have to mail everything printed out or do I have to exclude the ones that say "Keep for your records"?
If you printed your entire return, including worksheets and lists, you will need to separate the IRS forms from the other TurboTax reports.
All IRS forms have "Form" and a number in the upper left-hand corner. Others will say "Attach to return."
Don't include any page that says "Worksheet" or "Keep for your records."
If you attach more than is needed, no harm done. And if you leave out a form, the IRS will send you a letter to request a copy.