The IRS seems to not know the cost basis for the UBS ones, so I need to update them on that.
They seem not to know because that's how they do it ; they assume a basis of zero.
My question: Do I send them a new Schedule D that includes BOTH UBS and Merrill, or do I send them a Schedule D that shows just the UBS transactions since the IRS already have my Merrill stuff from my original tax
return?
There's only one Schedule D , I suggest including a correct and complete Schedule D.
That's what I suggested above.
Your missing transactions may end up in BOX A,D.
And should I send them a new Form 8949 that shows just the UBS transactions, or should it include both UBS
and Merrill?
send a separate Form 8949 with details only for the missing transactions.
that's what I suggested above. that made sense if there was a box B,E subtotal for that amount.
You can send the entire set of 8949 documents if you prefer that.
Note: because of TurboTax new behavior for Box A and Box D, you might have difficulty.
and might need to do the Form 8949 manually.
OR you can remind the IRS that Form 8949 is not required for Box A , D transactions without adjustments.
It depends on how many transactions are involved.
Once you supply the total cost basis, I suspect the IRS will be satisfied.
For best results, try to comply with the instructions in your letter.
Use your own judgement.
