efiling amended 1120s return
I am trying to efile my amended 2021 1120s return. Turbotax keeps saying it can efile because the return has already been filed. Yes, the amended box is checked and I changed the file name. The IRS states the amended return must be efiled. I am working from the 2021 Turbotax Business software version. How do I proceed? Can I open the file in 2022 software and efile it from there? Is there a way to file the return online? Just trying to find a work around.