I have a similar issue. I am using Turbotax business (for a complex trust) and need to report a short term gain on Form 8949 Box C (Transaction not on the form 1099-B reported by the brokerage). I searched for the worksheet mentioned in the replies to this but do not find it in Turbotax business. So far I have overriden the entries in one part of an 8949 to report the gain, but of course it creates numerous errors in review. Is there a way to report Box C gain in the step by step without overriding? Thanks.
