How to see TurboTax's computation?

[mnfriedman1]

Is there a way to see how TurboTax derives its numbers? Specifically, on the 1040ES workshheet I do not understand how the computation for 2026 projected final itemized deduction amount is derived. I double clicked on the computed amount but apparenty drilling down to the computation is not possible.

[ThomasM125]

I don't think there is anyway to see the detail on that. However, you enter the itemized deductions on the screen that says Enter your 2026 Itemized Deductions in the Other Tax Situations section, and then Other Tax Forms, then Form W-4 and estimated taxes. Your itemized deductions should be the total of those entries, with allowances for limitations on things such as medical expenses (7.5% of adjusted gross income) and state/local taxes (limited to $40,000).