Versions of 26 CFR 1.166-1 - Bad debts on LawServer 2024 26 CFR 1.166-1 – Bad debts 2023 26 CFR 1.166-1 – Bad debts 2022 26 CFR 1.166-1 – Bad debts 2021 26 CFR 1.166-1 – Bad debts 2015 26 CFR 1.166-1 – Bad debts 2014 26 CFR 1.166-1 – Bad debts 2010 26 CFR 1.166-1 – Bad debts 2009 26 CFR 1.166-1 – Bad debts