To enter your alternative minimum tax capital loss carryover information in TurboTax Online:
If you don’t see 2022 TAXES in the left pane, select the dropdown to the right of Income & Expenses on the Hi, let’s keep working on your taxes! page and then select Let’s get started, Pick up where you left off, or Review/Edit.
Otherwise, in the left pane, select Federal, then Wages & Income (This is labelled Income & Expenses in TurboTax Self-Employed)
Scroll down and select the Show more dropdown to the right of Investments & Savings
Select Start or Revisit to the right of Capital Loss Carryover
Select Yes on the Do you have unused losses from prior years? screen, then select Continue
Enter your relevant information on the We’ll start with some info from your 2021 tax return page, then select Continue
On the Are your carryover AMT amounts different? page, select Yes, assuming that's correct, then select Continue