(a) On or before February 28 of each year for the preceding calendar year or on or before the thirtieth day after the date on which the final payment of wages is made by an employer who has ceased to pay wages, an employer shall file with the commissioner an annual or a final return, as the case may be, on a form prescribed by the commissioner. The employer shall attach to the return copies of the statements required to be furnished under Code Section 48-7-105 for the period covered by the return, provided that in lieu of attaching copies, the commissioner may authorize the reporting of such information by electronic or magnetic media.

(b) The commissioner may grant a reasonable extension of time, not exceeding 30 days, for filing the annual or final return required by this Code section.

(c) If an employer liable for any withholding tax, interest, or penalty levied pursuant to this chapter sells out his business or stock of goods or equipment or quits the business, he shall file the final return as required in subsection (a) of this Code section. The employer's successor or assigns, if any, shall withhold a sufficient amount of the purchase money to cover the amount of the withholding taxes, interest, and penalties due and unpaid until the former owner provides a receipt from the commissioner showing that the taxes, interest, and penalties have been paid or a certificate from the commissioner stating that no withholding taxes, interest, or penalties are due.

(d) If the purchaser of a business or stock of goods or equipment fails to withhold the purchase money as required by this Code section, he shall be personally liable for the payment of the withholding tax, interest, and penalties accruing and unpaid by any former owner or assignor. The personal liability of the purchaser in such a case shall not exceed the amount of the total purchase money, but the property being transferred shall in all cases be subject to the full amount of the tax lien arising from the delinquencies of the former owner.