Which PIN to use for an Amended Return ?

[HLieu]

I am filing an Amended Return for the 2023 Return ... which PIN should I be using ?  Should I be using the PIN that I had used to filed the original 2023 Tax Return with (the PIN that I obtained from IRS in Calendar Year 2024) ?  Or, Should I be using the PIN that I had obtained from IRS in Calendar Year 2025 (to file the 2024 Tax Return with) ?

[rjs · Accepted solution]

If you are talking about a 6-digit Identity Protection PIN (IP PIN), you use the 2025 IP PIN for any return that you file IN 2025, no matter what year the return is for.

[HLieu]

Thank you for that answer @rjs