2024 26 CFR 1.173-1 – Circulation expenditures

2023 26 CFR 1.173-1 – Circulation expenditures

2022 26 CFR 1.173-1 – Circulation expenditures

2021 26 CFR 1.173-1 – Circulation expenditures

2015 26 CFR 1.173-1 – Circulation expenditures

2014 26 CFR 1.173-1 – Circulation expenditures

2010 26 CFR 1.173-1 – Circulation expenditures

2009 26 CFR 1.173-1 – Circulation expenditures.