You do not report your son's income on your return.
You can claim him as a dependent.
If his income is wages reported on form W-2, he is not required to file a tax return as he earned less than $12,400. However, if he had taxes withheld, he can file a tax return to claim a refund.
If his income is self-employed income reported on form 1099-NEC, he is required to file a tax return if he earned more than $400.
If he files a tax return, he has to indicate in TurboTax that he can be claimed as a dependent by someone else.
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