The U.S. IRS and Treasury have issued the final regulations Additional Guidance on the Transition from Interbank Offer Rates to Other Reference Rates with Respect to the Interest Rates of a Foreign Bank (TD 9976), which were published in the Federal Register on 30 June 2023. --- SUMMARY: This document contains additional final regulations that provide guidance on the transition away from the use of interbank offer rates ("IBORs") to other reference rates. Specifically, this regulation provides the replacement rate for the IBOR presently used in the published rate election, which may be used by taxpayers to determine the amount...