@garryowen777
On your 2023 Form 1040, what are the exact amounts on lines 11, 12, 13, 14, and 15?
If line 15 is zero and line 14 is more than line 11 you did not really use $3,000 of the loss, even though you see the -$3,000 on Form 1040 line 7. You did not get the full benefit from the loss because your taxable income (line 15) would have been negative, but you cannot have negative taxable income.
You mentioned the Capital Loss Carryover Worksheet. In the 2023 tax return, I think you are looking at the Capital Loss Carryforward Worksheet, not the Capital Loss Carryover Worksheet. The Carryforward worksheet for 2023 calculates the losses to be carried over from 2023 to 2024. On line 1 of the Carryforward worksheet, in the Regular Tax column, you should see a negative number. That's the amount that Form 1040 line 15 would have been if it had been allowed to be less than zero. Line 13 of the Carryforward worksheet, in the Regular Tax column, would be $7,742. That's your long-term capital loss carryover from 2023 to 2024 because you were not actually able to use any of the loss in 2023. The calculation in TurboTax is correct.
