Version: TurboTax 2025 Home & Business
Platform: Apple iMac M4
Form: What-if
Bug: Line 42 needs to be equal to Line 40 minus line 41a-e in columns (2), (3) and (4). However, number on Line 42 is NOT subtracting numbers from line 41 a through e.
The TurboTax What-if Worksheet is a tax planning tool in the desktop software that allows users to simulate different financial scenarios—such as changing income, deductions, or filing status—to see their impact on tax liability without changing the actual return. It is only available in the downloaded desktop version and can compare up to three scenarios.
I just looked at the What-If Worksheet in a Mac return, copied column 1 figures to column 2, and also found that the worksheet didn't subtract the amounts in 41a through 41e in column 2.
I am reporting this issue for potential investigation. Thank you for raising it in the Community.
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We will then be able to review your file to see what you are seeing, and we can determine what is going on in your return and provide you with a suggested resolution or update when available.
[Edited 02/02/26| 5:53pm PST]
@FlyingCat (edited)
See my answer on your other post.
Do you have an amount on line 41e for the Senior Deduction? If you have a high income you do not get the 6,000 or 12,000 subtracted. I see the 12,000 shows up on my What-If in columns 2-4 but is not subtracted because line 40 income is over the max.
For Single the deduction starts to phase out at 75,000 and maxes out at 175,000
For Joint the deductions starts to phase out at 150,000 and maxes out at 250,000