Does my 16 year old dependent have to file taxes if she receives SSA and works part time? What are income requirements for filing?

My daughter receives SSA 1099 bc both her father and I are disabled.  She also works part time job.  Does she have to file return?  How/where can I find income requirements for her to file taxes?  She received little over $13000 in SSA and $550 on W2.