Interest rates: underpayments and overpayments. The rates for interest determined under Section 6621 of the code for the calendar quarter beginning January 1, 2024, will be 8 percent for overpayments (7 percent in the case of a corporation), 8 percent for underpayments, and 10 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 5.5 percent.

26 CFR 301.6621-1: Interest rate.

This notice sets forth updates on the corporate bond monthly yield curve, the corresponding spot segment rates for November 2023 used under § 417(e)(3)(D), the 24-month average segment rates applicable for November 2023, and the 30-year Treasury rates, as reflected by the application of § 430(h)(2)(C)(iv).

This document contains proposed regulations regarding excise taxes on taxable distributions made by a sponsoring organization from a donor advised fund (DAF), and on the agreement of certain fund managers to the making of such distributions. The proposed regulations provide guidance regarding DAFs and taxable distributions. The proposed regulations generally apply to certain organizations, including community foundations and other charitable organizations, that maintain one or more DAFs, and to other persons involved with the DAFs, including donors, donor-advisors, related persons, and certain fund managers.

Revocation of IRC 501(c)(3) Organizations for failure to meet the code section requirements. Contributions made to the organizations by individual donors are no longer deductible under IRC 170(b)(1)(A).

This document contains proposed regulations concerning the statutory disallowance rule enacted by the SECURE 2.0 Act of 2022 to disallow a Federal income tax deduction for a qualified conservation contribution made by a partnership or an S corporation after December 29, 2022, if the amount of the contribution exceeds 2.5 times the sum of each partner’s or S corporation shareholder’s relevant basis. The proposed regulations would provide guidance regarding this statutory disallowance rule, including definitions, appropriate methods to calculate the relevant basis of a partner or an S corporation shareholder, the three statutory exceptions to the statutory disallowance rule, and related reporting requirements. In addition, the proposed regulations would provide reporting requirements for partners and S corporation shareholders that receive a distributive share or pro rata share of any noncash charitable contribution made by a partnership or S corporation, regardless of whether the contribution is a qualified conservation contribution (and regardless of whether the contribution is of real property or other noncash property)

The Department of the Treasury and the IRS are reopening the comment period for REG-128276-12, published in the Federal Register on December 8, 2016, relating to the determination and recognition of taxable income or loss and foreign currency gain or loss with respect to a qualified business unit.

Federal rates; adjusted federal rates; adjusted federal long-term rate, and the long-term tax exempt rate. For purposes of sections 382, 1274, 1288, 7872 and other sections of the Code, tables set forth the rates for December 2023.