Versions of 26 CFR 1.951A-4 - Tested interest expense and tested interest income on LawServer 2024 26 CFR 1.951A-4 – Tested interest expense and tested interest income 2023 26 CFR 1.951A-4 – Tested interest expense and tested interest income 2022 26 CFR 1.951A-4 – Tested interest expense and tested interest income 2021 26 CFR 1.951A-4 – Tested interest expense and tested interest income