Does Texas require that child support be reported under nontaxable income?

Are you doing a sale tax deduction, if so yes it can be added.

If you are somewhere else on the return let me know and I can help.  Thank you

I am on the nontaxable income portion of the tax return

 The following items are deemed nontaxable by the IRS:

    Inheritances, gifts and bequests
    Cash rebates on items you purchase from a retailer, manufacturer or dealer
    Non-taxable alimony payments (for divorce decrees finalized after 2018)
    Child support payments
    Most healthcare benefits
    Money that is reimbursed from qualifying adoptions
    Welfare payments

The only place this should go would be computing the sales tax deduction, so if that is where you are, then yes add it.  Otherwise it does not really go on the return anywhere.

That clears my question up thank you so much.

My pleasure and I will put in answer below so it may help others.

Texas? Do you mean taxes?

The following items are deemed nontaxable by the IRS:

    Inheritances, gifts and bequests
    Cash rebates on items you purchase from a retailer, manufacturer or dealer
    Non-taxable alimony payments (for divorce decrees finalized after 2018)
    Child support payments
    Most healthcare benefits
    Money that is reimbursed from qualifying adoptions
    Welfare payments

The only place this should go would be computing the sales tax deduction, so if that is where you are, then yes add it.  Otherwise it does not really go on the return anywhere.