The TurboTax desktop product shows the "State and local taxes greater than $10,000" line in the Deductions summary, even though the Standard Deduction is listed and no other state and local tax deductions are listed. Furthermore, it actually "deducts" the amount (-$587 in my case) to get the Total Deductions, making it look like the Feds are not only not going to give me credit for these taxes, but they are apparently REDUCING my standard deduction for having to pay them! Fortunately, after examining the tax forms, there is no reduction in the deduction, so the error is only in the summary display itself.
This line should ONLY appear in the display if itemized deductions are actually being used.
