If you have a 1099NEC, yes, you need to file a tax return, because a 1099NEC is issued for self-employment income. If you have even $400 of self-employment income you are required to file and pay self-employment tax for Social Security and Medicare, although you will not owe any ordinary income tax for that amount of income.
https://ttlc.intuit.com/questions/2926899-how-does-my-side-job-affect-my-taxes
https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922
https://ttlc.intuit.com/questions/2902389-why-am-i-paying-self-employment-tax
https://ttlc.intuit.com/questions/1901340-where-do-i-enter-schedule-c
https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct
If you have a 1099NEC, yes, you need to file a tax return, because a 1099NEC is issued for self-employment income. If you have even $400 of self-employment income you are required to file and pay self-employment tax for Social Security and Medicare, although you will not owe any ordinary income tax for that amount of income.
https://ttlc.intuit.com/questions/2926899-how-does-my-side-job-affect-my-taxes
https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922
https://ttlc.intuit.com/questions/2902389-why-am-i-paying-self-employment-tax
https://ttlc.intuit.com/questions/1901340-where-do-i-enter-schedule-c
https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct