Hello and thank you for your question. If your dependent child meets the qualifications, you may be able to claim them on your return. Due to the amount of $15,000 income he will be required to file a tax return. If you claim him and he is required to file a tax return then he will need to ensure he marks that he can be claimed as a dependent. I briefly discussed qualifications of a dependent above, but the link below will have more detail and explanation (filing requirements, earned income, invetment income, etc.). Have a good day!
From TurboTax "Tax Filing Requirements for Children"
