What box is it in on the 1099-MISC?
That is under the filing requirements for a dependent - so no tax return is required.
2020 Filing requirements for dependents.
Single dependents— (Not age 65 or older or blind)
You must file a return if any of the following apply.
1. Your unearned income was more than $1,100.
2. Your earned income was more than $12,400.
3. Your gross income was more than the larger of—
a. $1,100, or
b. Your earned income (up to $12,050) plus $350.
Or Dependent had net earnings from self-employment of at least $400.
However, if any tax was withheld, then Dependent might want to file anyway to get a refund of the tax withheld.
Also, a person that CAN be a dependent cannot claim him/her self and must check the box that says that another taxpayer can claim them (whether or not that taxpayer actually claims him/her).
Note: your state filing requirements might be different than the federal.
she received this for a after school program, i still don't know if this belongs to " Dependent had net earnings from self-employment of at least $400. " or not; but she is not self-employment.
Box 3 is not self-employment it is "other income".