I think people get confused about the 5 digit "Signature Pin" (any 5 digit number) entered during the online filing process; and the 6 digit "IP PIN" (Identity Protection PIN) issued by the IRS to:
1. Individuals that may have had an identity problem (sent by the IRS via mail), or
2. Individuals who go online to: www.irs.gov/ippin and retrieve their pin every year, or request a new IP PIN
I have found the easiest way to enter the 6 digit IP PIN is to go to the "Forms" tab at the upper right of TurboTax
and scroll down the Federal Information Worksheet to the IP PIN entry fields. Enter your pin and resave your file.
