State tax filing

Thanks, but that is not the issue, the taxes on my Schedule A L 5A are State income tax, not Sales tax.  Also, I read TC-40 instructions, but my read is the instructions imply TT should report all of my state taxes without accounting for the $10K limit (which doesn't seem right, but...).

The Help Center page describes apportioning the amount based on the percentage of the total due to the State tax.  After posting my question, I found out it appears the program simply subtracts my Real Estate tax amount from the $10K deductable total, and then assigns the rest as my State Income tax deduction (i.e., what goes on TC-40 Line 14).  That resulting, amount shown by TT on Line 14, is not the same as apportioning it like the example in the Help Center (i.e., by percentage).  I think the Help Center page isn't accurately reporting what the software appears to be doing.  In my case, I don't think it changes the outcome as I don't qualify for state credits.  Just not sure what the real rule is for accurately reporting the right amount on TC-40 (is apportioning allowed?), and on what rationale Turbo Tax is basing it's calculation (doesn't appear to be proportional, just simple subtraction).

Thanks,