This feature needs a lot of work. I had to amend a tax return because TP forgot 1 W2, now in paper form, I could have been done in a few minutes, but I was with tech support for 1.5 hours. There were a couple of errors, one of which indicates, I cannot efile if the original was not previously efiled. Well the file was originally efiled in Proseries and I just created a new "amended file" from the original as one should. In the end, I had to paper file. Proseries, please work on the glitches. I thought it would save me so much time and ink, but it didn't.