Anonymous
Not applicable

Get your taxes done using TurboTax

This is just a guess about the efile...Using the pre-TCJA, it may need to be paper filed so that the IRS can cross reference the parent’s AGI entered for tax bracket purposes. Since it was added late, the IRS may not be set up to do that electronically. 
But efile should be set up to compute using the Estate and Trusts rates because that’s the current law. Again, just a guess.