26 CFR 25.6601-1 - Interest on underpayment, nonpayment, or extensions of time for payment, of tax.

§ 25.6601-1 Interest on underpayment, nonpayment, or extensions of time for payment, of tax.

For regulations concerning interest on underpayment, nonpayment, or extensions of time for payment of tax, see § 301.6601-1 of this chapter (Regulations on Procedure and Administration).

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code

Title 26 published on 16-Jun-2017 03:58

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 26 CFR Part 25 after this date.

  • 2016-09-02; vol. 81 # 171 - Friday, September 2, 2016
    1. 81 FR 60609 - Definition of Terms Relating to Marital Status
      GPO FDSys XML | Text
      DEPARTMENT OF THE TREASURY, Internal Revenue Service
      Final regulations.
      Effective date: These regulations are effective on September 2, 2016.
      26 CFR Parts 1, 20, 25, 26, 31, and 301