Section 532 - Recovery of erroneous refund(a) An erroneous refund shall be considered an underpayment of tax on the date such refund was made, and a notice of proposed assessment under § 521(c) of this title with respect to such refund may be mailed to the taxpayer at any time within the later of:(1) Two years from the making of such refund; or(2) The limitation period provided by § 531 of this title.(b) As to any part of an erroneous refund that was induced by fraud or by the intentional misrepresentation of a material fact, a notice of proposed assessment under § 521(c) of this title with respect to such refund may be mailed to the taxpayer at any time.68 Del. Laws, c. 187, §1.;