Versions of See prior versions of a law on LawServer 2024 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2023 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2022 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2021 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2020 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2019 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2016 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2015 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund 2014 26 CFR 40.6109-1 – Tax return preparers furnishing identifying numbers for returns or claims for refund
