Versions of 26 CFR 1.165-1 - Losses on LawServer 2024 26 CFR 1.165-1 – Losses 2023 26 CFR 1.165-1 – Losses 2022 26 CFR 1.165-1 – Losses 2021 26 CFR 1.165-1 – Losses 2015 26 CFR 1.165-1 – Losses 2014 26 CFR 1.165-1 – Losses 2010 26 CFR 1.165-1 – Losses 2009 26 CFR 1.165-1 – Losses