Versions of Iowa Code 437A.18 - Tax imposition on LawServer 2024 Iowa Code 437A.18 – Tax imposition 2023 Iowa Code 437A.18 – Tax imposition 2022 Iowa Code 437A.18 – Tax imposition 2020 Iowa Code 437A.18 – Tax imposition 2018 Iowa Code 437A.18 – Tax imposition 2016 Iowa Code 437A.18 – Tax imposition 2014 Iowa Code 437A.18 – Tax imposition. 2009 Iowa Code 437A.18 – Tax imposition