This sounds like a workaround instead properly asking and recording the actions of the taxpayer.
TP had determined the RMD for each individual account and between the two distributions took more than their total RMD. They took less from one, but much more from the other and as a result more than satisfied the full RMD requirement.
Why not set up the software to ask/answer the RMD question truthfully for each 1099-R account, internally do the addition across all accounts and report that the total RMD was taken?
