I was able to finally e-file the 1041 after a third time. When filing the first time and doing the check for errors, up came the special name control code as an error. Highlighted was the four letter control number and it had the same explanation - it usually the first 4 letters of the estate etc. - call the IRS. I tried putting in the first four letters of the estate and that caused the first rejection. When I tried this the second time with my guess at what the letters should be, it caused the second rejection. Don't believe the explanation. I finally found the info buried in the IRS EIN tax letter that I applied for and received for my mothers estate. It was buried in the last paragraph on the second page. It ended up being the first four CAPITAL letters of our last name but may be different for each estate based on filing for a EIN letter.
I then went back into Turbo Tax business per the email I got from Intuit when the e-file was rejected a second time, and ended up with the same problem I had before when it came to the final check - Congratulations no errors found. Before sending it a third time, I then went and clicked on Tools in the upper right corner of the Turbo Tax Business screen, clicked on My Tax Data, and in the list the first attachment on my data was the Fiduciary Info Worksheet. It also showed the wrong code, so I opened the worksheet and highlighted in the upper right corner was the box that needed corrections. After putting in the correct 4 letter code, and saving the document it then came up on the list showing my correct four letter code. After finishing the rest of the form I submitted the e-file and 20 minutes later got an acceptance by the IRS. My luck was that it had not been accepted yet by the IRS, and am guessing therefore did not require a mailed in amended 1041. I hope this helps.
