<p>How does IDOCS know when the 1040 is filed?</p>
<p>I didn’t think they did. I had to send a copy of my tax return to IDOC.</p>
<p>I agree. They require a signed tax form, which for the majority of people, is not done if they file electronically. So you print out your electronic version of the 1040 and sign it just for IDOC. Whether the 1040 version is actually the one you submitted electronically, or still is in draft stage, IDOC really doesnt know, I imagine. Of course, it should be your “final” version that they get.</p>