(1) Tax returns as to taxes mentioned in ss. 624.509 and 624.510 shall be made by insurers on forms to be prescribed by the Department of Revenue, and shall be sworn to by one or more of the executive officers or attorney (if a reciprocal insurer) of the insurer making the returns. (2) Notwithstanding the provisions of s. 215.26(1), if any insurer makes an overpayment on account of taxes due under ss. 624.509 and 624.510, a refund of the overpayment of taxes shall be made out of the General Revenue Fund. Overpayment of taxes due under ss. 624.509 and 624.510 shall be refunded no sooner than the first day of the state fiscal year following the date the tax was due. (3)(a) If it appears, upon examination of an insurance premium tax return made under this chapter, that an amount of insurance premium tax has been paid in excess of the amount due, the Department of Revenue may refund the amount of the overpayment to the taxpayer by a warrant of the Chief Financial Officer. The Department of Revenue may refund the overpayment without regard to whether the taxpayer has filed a written claim for a refund; however, the Department of Revenue may request that the taxpayer file a statement affirming that the taxpayer made the overpayment.
(b) Notwithstanding paragraph (a), a refund of the insurance premium tax may not be made, and a taxpayer is not entitled to bring an action for a refund of the insurance premium tax, after the period specified in s. 215.26(2) has elapsed. (c) If a refund issued by the Department of Revenue under this subsection is found to exceed the amount of refund legally due to the taxpayer, the provisions of s. 624.5092 concerning penalties and interest do not apply if the taxpayer reimburses the department for any overpayment within 60 days after the taxpayer is notified that the overpayment was made. 