You will get a W2 form from your employer by the end of January. If they took out any federal withholding in box 2 you can file a 2020 tax return to get a refund. If you only have a W2 for 1 month work it should be easy and free to file a a2020 tax return. Are you still a dependent on your parent's return?
Here is an article on who has to file a tax return. It is still for 2019 but should work for 2020 too. The new 2020 income goes up to $12,400 from 12,200.
https://ttlc.intuit.com/community/filing-and-paying-taxes/help/do-i-need-to-file-a-federal-return-th...
