Your child’s Social Security benefits should not be included in your tax return.

If your child has other taxable income and must file a tax return, the benefits would be reported on her tax return. If she has no other income, she does not need to file a tax return.

See the article below for more information.

https://www.irs.gov/Help-&-Resources/Tools-&-FAQs/FAQs-for-Individuals/Frequently-Asked-Tax-Question...