I claimed my brother as a dependent (who has been living with me over a year with no job) and found out he owes back child support. Will they take my refund?

No, your tax refund cannot be seized for the debts of dependent you entered on your tax return.

No, your brother's back child support is HIS responsibility to pay, you have no obligation to pay it.  They will NOT take your tax refund.

thank you

thank you