I had the exact same problem. Turbotax Business does not support e-filing Amended 1041s. As a test, I saved the amended 1041 as a tester file, then changed the ...
In Turbotax Business, how do I e-file an Amended 1041 after I e-filed the original 1041? When I try to e-file the amended 1041, Turbotax will not allow me to e-...