Idaho Code § 41-305: Certificate of authority required.

(1) No person shall act as an insurer and no insurer or its agents, attorneys, subscribers, or representatives shall directly or indirectly transact insurance in this state except as authorized by a subsisting certificate of authority issued to the insurer by the director, except as to such transactions as are expressly otherwise provided for in this code.

(2) No insurer shall from offices or by personnel or facilities located in this state solicit insurance applications or otherwise transact insurance in another state or country unless it holds a subsisting certificate of authority issued to it by the director authorizing it to transact the same kind or kinds of insurance in this state.