Idaho Code § 41-402A: Refunds.

Where there has been an overpayment of any taxes, fines or penalties due under this chapter, the director is authorized to refund all such taxes, fines or penalties erroneously or illegally collected or paid. No such refund shall be paid after one (1) year from the due date of the statement required in section 41-402(4), Idaho Code, unless before the expiration of such period a written claim is filed therefore by the insurer on such forms and in such manner as is prescribed by the director.