(a) Within a time frame specified by the department, a claimant agency seeking to collect a debt through setoff shall supply the information necessary to identify each debtor whose refund is sought to be set off and shall certify the amount of the debt or debts owed by each debtor.

(b) If a debtor identified by a claimant agency is determined by the department to be entitled to a refund of at least $25.00, the department shall transfer an amount equal to the refund owed, not to exceed the amount of the claimed debt certified, to the claimant agency. When the refund owed exceeds the claimed debt, the department shall send the excess amount to the debtor within a reasonable time after the excess is determined.

(c) At the time of the transfer of funds to a claimant agency pursuant to subsection (b) of this Code section, the department shall notify the taxpayer or taxpayers whose refund is sought to be set off that the transfer has been made. The notice shall clearly set forth the name of the debtor, the manner in which the debt arose, the amount of the claimed debt, the transfer of funds to the claimant agency pursuant to subsection (b) of this Code section and the intention to set off the refund against the debt, the amount of the refund in excess of the claimed debt, the taxpayer's opportunity to give written notice to contest the setoff within 30 days of the date of mailing of the notice, the name and mailing address of the claimant agency to which the application for a hearing must be sent, and the fact that failure to apply for a hearing in writing within the 30 day period will be deemed a waiver of the opportunity to contest the setoff. In the case of a joint return, the notice shall also state the name of any taxpayer named in the return against whom no debt is claimed, the fact that a debt is not claimed against such taxpayer, the fact that such taxpayer is entitled to receive a refund if it is due him regardless of the debt asserted against his spouse, and that in order to obtain a refund due him such taxpayer must apply in writing for a hearing with the claimant agency named in the notice within 30 days of the date of the mailing of the notice. If a taxpayer fails to apply in writing for a hearing within 30 days of the mailing of the notice, he will have waived his opportunity to contest the setoff.

(d) Upon receipt of funds transferred from the department pursuant to subsection (b) of this Code section, the claimant agency shall deposit and hold the funds in an escrow account until a final determination of the validity of the debt.

(e) The claimant agency shall pay the department for all costs incurred by the department in setting off debts in the manner provided in this article.