Versions of Iowa Code 450.5 - Liability for tax on LawServer 2024 Iowa Code 450.5 – Liability for tax 2023 Iowa Code 450.5 – Liability for tax 2022 Iowa Code 450.5 – Liability for tax 2020 Iowa Code 450.5 – Liability for tax 2018 Iowa Code 450.5 – Liability for tax 2016 Iowa Code 450.5 – Liability for tax 2014 Iowa Code 450.5 – Liability for tax. 2009 Iowa Code 450.5 – Liability for tax