Hi, all. Thanks to all who responded.
My apologies for the post, but the limit to the length of the question made the question a bit unclear. I was aware that in my simple situation I could only claim one-half of the property taxes paid. I was unsure about how TT handled the entry.
It turns out that in my simple case (married filing separately, own a single-family home with my spouse, and pay property taxes), I should enter the ENTIRE amount of property taxes paid. TT uses one-half for its calculation, which is correct. If I enter my half of the taxes paid, TT will use one-fourth of the property taxes paid, which is incorrect. I was confused when I found that the property tax deduction on my pro-forma married-filing-jointly return had a different deduction than the sum of the married-filing-separately deductions. My confusion led to my question.
Thanks again to all who took the time to answer.
