Thanks all for the replies. I called the IRS helpline as well and here is what I was told:
The IRS will "stamp" a copy if you physically file it at an IRS office with someone. I don't know anybody who files taxes this way.
I understand the IRS has an electronic portal and his has some form of certification.
The helpline person told me that as far as the IRS is concerned, when an approved vendor like TurboTax e-mails me to say my return is filed and accepted that it is filed and accepted. The only thing they are ever going to issue is a transcript identical to the electronic copy of my TurboTax filing.
