Versions of Oregon Statutes 673.643 - Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions on LawServer 2023 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2021 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2019 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2017 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2015 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2013 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions 2009 Oregon Statutes 673.643 – Preparation of tax returns by corporation, firm or partnership; requirements; liability; prohibitions