Where do I find Form 8801, Credit for Prior Year Minimum Tax? TT said I need it and I was notified it's now available, but I searched and can't find it.

To enter your Credit for Prior Year Minimum Tax information in TurboTax Online:

1. If you’re on the Hi TurboTax Client, let's keep working on your taxes! screen, click the Pick up where you left off button.  Otherwise, 

2. Click Federal in the left pane, if you’re not already there

3. Click Deductions & Credits in the banner

4. Scroll down and click Show more to the right of Estimates and Other Taxes Paid

5. Select Start to the right of Credit for AMT Paid in Prior Year

6. Enter all relevant information on the subsequent screens

Thanks @JohnW152   I saw that, but TT indicates I have a carryover and a credit this year.  It doesn't ask me to fill out anything at this point.  Did TT do something automatically when the form became available?

Yes, TurboTax may have completed the form for you when it was made available. I would review the form using  @JohnW152 instruction above before filing, just to be sure.