The name mismatch on your tax forms is not an issue ... what is an issue is the time it will take for the IRS to get the word from SS of the name change ... a process that can take up to 8 weeks ( you should have filed your return BEFORE you started changing everything). You will have to use your new name even though you will not be filing a joint 2016 tax return so expect a delay in getting the return accepted. You can try to efile once a week until the new name is accepted OR you can mail in the return (no guarantee that it will be accepted with the mismatch).
