<p>I'm going to apply for FAFSA tomorrow. Which years taxes should I tell my parents to use? I don't think they filed 2010 taxes yet...</p>
<p>It will be based on their 2010 taxes. If they haven’t filed yet, you will need to estimate the numbers for 2010, and put “will file” as the status, and then correct the FAFSA and change the status to “filed” when they do file.</p>