Versions of 26 CFR 1.1012-1 - Basis of property on LawServer 2024 26 CFR 1.1012-1 – Basis of property 2023 26 CFR 1.1012-1 – Basis of property 2022 26 CFR 1.1012-1 – Basis of property 2021 26 CFR 1.1012-1 – Basis of property 2015 26 CFR 1.1012-1 – Basis of property 2014 26 CFR 1.1012-1 – Basis of property 2010 26 CFR 1.1012-1 – Basis of property