Get your taxes done using TurboTax

You never said…,did he get a W2 for the part time job or a 1099NEC?  

If his only income is W2 and under 14,600 they do not have to file a return except to get back any withholding taken out.  If he does file a return he has to include the SSA-1099 (but it without t be taxable).  

If he gets a 1099NEC that is self employment and he has to file a tax return.

 

Filing requirements for a dependent

https://ttlc.intuit.com/community/children-dependents/help/do-i-need-to-file-my-own-taxes-if-i-m-a-d...