Turbo Tax doesn't accept my six-digit IP PIN at the "Sign Your 2023 Return" screen.

If you have a 6 digit PIN issued to you by the IRS you need to enter it in order to e-file.  Go to Federal>Other Tax Situations>Other Return Info>Identity Protection PIN and enter the six-digit PIN.

Your six digit IP Pin is used for identity protection. The five digit sign in pin is used as your signature to e-file your tax return.

Thanks for your reply.

It was helpful.

Re: Turbo Tax doesn't accept my six-digit IP PIN at the "Sign Your 2023 Return" screen.

Your six-digit PIN from the IRS does not go there.  That is the IRS Identity pin.  Enter your 5-digit e-file pin here.

Follow these instructions to enter your Identity Protection Personal Identification Number (IP PIN) or to remove an IP PIN that you accidentally entered.

1. Sign in to your TurboTax account.
2. Open or continue to your return if you don't already have it open.
3. In the search bar type IP pin (don't forget the space).
4. Select the Jump to link in the search results.
5. On the Identity Protection PIN screen, answer Yes. Select Add and enter your IP PIN in the space provided.
   • If you need to remove the IP PIN, select the trash icon.
6. Select Continue, then select Done.

@cymesg 

I called the TT help line,

open return > Personal > Other Tax Situations > scroll to ID Protection PIN