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@Boyan -- I just did a quick test, and can confirm that there's no longer a 1099-B being created.  But the potential duplication remains.  If you don't force the "Enter Sale Information" interview to calculate $0 gain, TT will create a form 8949 for transactions "not reported on Form 1099-B".  This 8949 has either box C (short term) or box F (long term) checked.

So if you decide to do it this way, you'll need to get rid of any 1099-B provided by the broker -- the 8949 created by TT should have the correct Cap Gain and it will flow to Sched D correctly.

In the end, you want to make sure that

1. Sched D has the correct Cap Gain.  In a complete disposition, where everything is either short or long-term, you have the choice of getting it there through the 1099-B from the broker, or the 8949 created by TT.  Just make sure its only getting there once.
2. Form 4797, Part II shows the Ordinary Gain
3. Sched E, Part II has all the suspended losses that are released by the sale.

Note that, if you want to force the interview to show $0 for Cap Gain (so you do your edits in the broker's 1099-B), you'd

• enter $0 for Sales Price
• put -554 in Partnership Basis
• put 554 in for Ordinary Gain
• in the AMT column, you'd have 534 for Ordinary Gain (554-20), so you'd use -534 in the Partnership Basis.
• The above would avoid creating the new 8949, and allow the 1099-B to be adjusted