Have you encountered a case where the recipient of the Allocation J file was requesting the Tax Lot Level data per each Allocation?
I am not seeking a solution but rather, has the request been encountered (yes/no) and was the tax lot data eventually included in the Allocation J message (yes/no).
I think yes to both question. Back in 2011 there was a gap analysis submitted to enhance the J message to support an ability to convey cost basis information that can be used for lot based gain/loss reporting. This was in the context of wealth management. You can read about that proposal here.
Thank you. I will review.