You NEVER enter your daughter's income on your own tax return. If your daughter has any taxable income with tax withheld, she can file her own tax return to seek a refund of the amounts from boxes 2 or 17 of her own W-2. Since she is your dependent, she must say on her own tax return that she can be claimed as someone else's dependent.
SSI is not taxable and is never entered on any tax return. Social Security is only taxable if the person has enough other income to make it taxable. You say she works only a few hours per week so it is highly unlikely that her SS would become taxable. If no tax is being withheld from her W-2 job, then she will not even need to file a tax return.
You need to file a federal return if half your Social Security plus your other income is $25,000 when filing single or head of household, or $32,000 when filing married filing jointly, $0 if you are filing married filing separately.
Who has to file?
http://www.irs.gov/uac/Do-I-Need-to-File-a-Tax-Return%3F
IRS interview to help determine who can be claimed:
https://www.irs.gov/help/ita/who-can-i-claim-as-a-dependent
https://ttlc.intuit.com/questions/3113432-who-can-i-claim-as-my-dependent
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
