You do not enter a dependent's earned income from wages reported on a W-2 or their self-employment income on your tax return. If the wages reported were $6,350 or less then the child does not have to file a tax return. If the wages were more than $6,350 or the child wants to file for a tax refund then they must file a tax return and indicate on the return that they can be claimed as a dependent. A child under the age of 16 cannot e-file a tax return, it must be printed and mailed.