We've had over a dozen returns get rejected from efile with the message (10) Submission is a duplicate of one that was previously received. I find this hard to believe that all of our client rejects have had identity theft. Any suggestions? Software glitch? we've tried updates and tech support and nothing.
Did you find a solution? I am having a similar issue when I look at EF clients tab. I know some of them I submitted, but they say not e-filed. When I try to e-file again this error pops up.
