thuecity
Level 1
Our client was day trader with total volume in 2019 was over 1 Billion. We tried every possible way, but the Proseries cannot handle that big amount.
0 Cheers
TaxGuyBill
Level 15

If ProSeries can't handle it, I can think of two options:

  1. Manually fill out 8949, override the 1040 to reflect the results, and file by mail.
  2. Use other software that can handle it.