Depending on how much earned and unearned income they have, dependents may have to file a tax return
Even if you are claimed as a dependent on someone else’s return, you may still have to file a return of your own.
Whether or not you have to file depends on how much income you have, specifically how much earned and unearned income.
Only Earned Income
In the chart below is the amount of earned income above which a dependent must file a tax return. As with almost everything involving the IRS, this isn’t just one simple number. The threshold changes depending on your filing status, age, and blindness. Find your situation on the chart to see how much earned income will force you to file a return.