An Identity Protection PIN (IP PIN) is a 6-digit number that the IRS gives taxpayers who were victims of tax-related identity theft.
The IP PIN validates a Social Security number's true owner and prevents future tax fraud. Most taxpayers don't need one.
Please see the following TurboTax FAQ on how to get your 6 digit ID Pin:
https://ttlc.intuit.com/replies/3388576
