I have a client (small plan, 401(k)) for whom I have e-filed the 5500SF each year. They no longer use my services, and wish to file an amended 2022 Form 5500-SF.
Can they: create EFAST filing credentials, then immediately file an amended 5500?
I imagine the answer is "yes", but I am totally unfamiliar with that process, since I file all of my clients' 5500s myself.
Thank you!