Do you have -- or will you receive--- a W-2 showing federal or state tax withheld? If so you would want to file a tax return to seek a refund. Or.....if you had even $432 of self-employment income, you are required to file a tax return and pay self-employment tax for Social Security and Medicare. (did you ---for example---make deliveries for doordash, instacart, ubereats, etc.? Mow lawns? Babysit?)
Who has to file?
http://www.irs.gov/uac/Do-I-Need-to-File-a-Tax-Return%3F
CAN I FILE A RETURN IF I AM A DEPENDENT?
If you can be claimed as a dependent on your parents’ return, you can still file your own return so that you can receive a refund of taxes withheld. Your W-2 will show federal tax withheld in box 2, and state tax withheld in box 17. (You will not get back anything for Social Security or Medicare withheld.) Be sure that on your own return you say that you can be claimed as a dependent on someone else’s return.
https://ttlc.intuit.com/community/children-dependents/help/do-i-need-to-file-my-own-taxes-if-i-m-a-d...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
