It is for your dependent.

E-file reject IND-996: The Dependent/Qualifying Person Identity Protection Personal Identification Number (IP PIN) provided on the return is not valid.

If a dependent or qualifying person listed on your return has ever received an IP PIN, a CP01A notice, or opted into the IRS's IP PIN pilot program, that person's special 6-digit IP PIN needs to be on the return to validate their identity for e-filing.

Start by finding your dependent or qualifying person's 6-digit IP PIN. Here's how:

• Look on the CP01A letter they received in December or January for their 2021 taxes. IP PINs from prior tax years won't work.
• If they lost or never got a CP01A letter, retrieve their IP PIN online at the IRS's Get an IP PIN site.
• If unable to retrieve their IP PIN online, you can have it reissued (allow up to 21 days). More info

• Look on the CP01A letter they received in December or January for their 2021 taxes. IP PINs from prior tax years won't work.
• If they lost or never got a CP01A letter, retrieve their IP PIN online at the IRS's Get an IP PIN site.
• If unable to retrieve their IP PIN online, you can have it reissued (allow up to 21 days). More info

Then, follow these instructions:

1. Sign in to TurboTax if you haven't already signed in.
   • Mobile users, you'll need to sign in using your browser, not from the TurboTax app.
2. Select any "Fix" buttons you see before proceeding to the next step.
3. At the Welcome back to TurboTax message, select Fix It Now.
4. Follow the on-screen instructions to enter your dependent or qualifying person's 2021 IP PIN and re-file your return.

https://ttlc.intuit.com/community/rejections/help/ind-996-the-dependent-qualifying-person-identity-p...