<p>It seems that some grad students do not complete the FAFSA until they know where they are going and what their offer is.</p>
<p>For your own sake, complete the FAFSA early, before each school’s priority deadline. Some grad programs, usually master’s, are not funded or not fully funded. You might qualify for a work study which could be used to pay you for the time spent doing research for your PI. Keep your options open, file FAFSA ASAP.</p>
<p>And even if you do get funding, you may need to borrow loans for relocation costs or other things. Delaying your FAFSA means you put a delay on how quickly those loans can get to you.</p>