Business & farm

so the answer is yes if you take a deduction for what you paid them. you should also have filed w-2's  for their gross compensation even if not subject to FICA/Medicare or withholding. The IRS generally takes a dim view of treating your children as independent contractors (1099-NEC). 

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see 1040 instructions in charts B & C as to whether returns need to be filed for your kids.

https://www.irs.gov/pub/irs-pdf/i1040gi.pdf