Do I have to file business supplement if my school doesn't ask for it?

<p>a friend of mine was telling me how complicated it was to fill the business supplement when your parents are self-employed. and I thought I should file business supplement too. but schools I applied to, they didn't ask for it on the fin aid application requirements. So, I don't need to file it right? I mean, of course I will fill the parents' business section on CSS. and file the other documents too. or do I need to file it anyway even if the school doesn't ask for it? I am an international applicant btw.
thank you</p>