You can read briefly about what an IP PIN is and how you can obtain your own IP PIN:
https://ttlc.intuit.com/replies/3388576
Once you have an IP PIN you can read below for instructions on entering your IP PIN into TurboTax:
https://ttlc.intuit.com/replies/3301088
If you cannot obtain your IP PIN, you can file by mail:
https://ttlc.intuit.com/replies/4170366
