Self employed

Belated thanks.  Trying to get back to this now after work consumed me this week.  I really appreciate your input.  Just to be sure, all of my daughter's income (W-2 income, like a dollar in interest income, and then this academic stipend) add up to less that $12,950.  I thought she didn't have to file at all when that's the case.  I don't want to pay for her to file if she doesn't have to file.  Can you clarify - does she need to file because of the NEC even if she's under $12,950?  Thanks!