EDITED 4/15/19 3:15 PM Pacific
IF YOU HAVE A 6-DIGIT IP PIN, IT IS NOT NEEDED TO FILE FOR AN EXTENSION.
Please disregard the comments below and skip to the Answer section below for more info. But again, an IP PIN is NOT needed for this purpose.
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I don't know if this will solve your extension problem or not, since I have no way to look at an extension interview. But here's how one would enter an IP PIN in Online TurboTax when preparing a return. Again, I have no way of knowing if it will translate to an extension you are preparing.
Here's the regular navigation method:
Log in and open your return ("Take me to my return.")
In the left menu column, click Federal.
Then at the top "Other Tax Situations"
On next screen croll down to "Other Return Info."
Choose "Identity Protection PIN" and Start (or Revisit.)
Here's an alternate route:
Log in and open your return ("Take me to my return.")
Once the return is open click in the top right corner on SEARCH.
Enter IP PIN without quotes then click the magnifying glass--do not use the dropdown menu, or it might not display the "Jump.".
Choose Jump to IP PIN.
