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I am really struggling with GLD although the amount involved is relatively small.  I bought 3 same-size lots of GLD in '21.  (In different months) I calculated the cost basis for each monthly disbursement.  I sold my 1st lot, bought in Jan, in Dec carefully calculating the amended cost basis of that lot.  Alas TT is adding the cost basis of the other 2 lots and subtracting that from my sale cost basis.  Is it possible to force TT to accept my numbers?  Or am I doing something completely wrong?