Iowa Code § 483A.17
Every license, except as otherwise provided in this chapter, is valid from the date issued to January 10 of the succeeding calendar year for which it is issued. A license shall not be issued prior to December 15 for the subsequent calendar year except for a three-year fishing license or a three-year hunting license issued to a resident pursuant to section 483A.1, subsection 1.
[S13, §2563-a8; C24, 27, 31, §1727; C35, §1794-e9; C39, §1794.091; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, §110.10; C79, 81, §110.17] 84 Acts, ch 1260, §8 C93, §483A.17 95 Acts, ch 46, §3; 2001 Acts, ch 134, §11; 2012 Acts, ch 1096, §16, 23