Is there a place on here where I can deduct what I owe through state ordered child support for taxes ?

[xmasbaby0]

No.  You cannot enter anything about child support on a tax return.  But the IRS and state likely already know that you owe and will offset your refund for back child support.

 refund offset.

https://www.irs.gov/uac/tax-refund-offsets-pay-unpaid-debts

 IRS Treasury Offset Program Call Center at 1-800-304-3107

 https://www.irs.gov/uac/tax-refund-offsets-pay-unpaid-debts

https://ttlc.intuit.com/community/refunds/help/what-is-a-refund-offset/00/26301

Reduced Refund      https://www.irs.gov/taxtopics/tc203

 NOTE: You can contact the IRS Treasury Offset Program Call Center at 1-800-304-3107 to ask if they have an offset for you on file. TurboTax would not have that information.

https://turbotax.intuit.com/tax-tips/tax-payments/who-can-garnish-an-income-tax-refund/L7cPPzDyc

[Critter-3]

No ... if you have a refund on the return then rest assured the IRS will grab the refund to pay down the debt.