I forgot my pin 5 digit pin to e-file. how do i retrieve it. I'm also not talking about the 6 digit irs pin.

 

Get your taxes done using TurboTax

You only need the 2017 AGI  OR  the PIN ... you do not need both. 

Get your taxes done using TurboTax

leave the AGI field empty, and proceed.

if turbotax has your PIN, it should appear.

NOTE: I'm guessing; that's how other programs do it.