What happens if parents' business returns aren't completed by March 1st?

<p>What happens if you send incomplete information to IDOC (ie, the personal tax return, but not the corporate?) What about schools that have a March 2nd deadline, but don’t use IDOC? How strict are they, generally, about this date? How do people that own their own businesses get this done by March 2nd???</p>

<p>So worst case, are you denied aid because your taxes weren’t done on time? (Profile and FAFSA were completed last October and January, respectively, by the way.)</p>

<p>Thanks for any info you can share. First-time college parent here.</p>