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Part III. Administrative, Procedural, and Miscellaneous
Internal Revenue Bulletin 2001-6 · 2026-10-03 edition · updated 2026-10-04 · United States
each proposed adjustment; and (2) all claims and affirmative issues have been raised by the taxpayer and audited. Interested taxpayers with questions as to whether audit work is sufficiently complete should consult with their Team Manager.
Each affected IRS function (LMSB, Appeals, and Chief Counsel) will independently recommend whether the taxpayer should be accepted into the pilot program. When a taxpayer is accepted for the pilot program, the IRS will form a team representing LMSB, Appeals, and, if appropriate, Chief Counsel to work with the taxpayer to resolve outstanding unagreed issues.
For taxpayers accepted into the pilot program, the IRS will not issue a notice of proposed deficiency, commonly called a “30-day letter,” for the years currently under examination by LMSB upon commencement of the program. Accordingly, for those years, the accrual of increased interest on large corporate underpayments under § 6621(c) of the Internal Revenue Code will not begin at that time. However, if those years are not resolved within 12 months after the initial issue discussion conference is held under the pilot program, the IRS will issue a letter of proposed deficiency to begin the accrual of interest at the increased rate.
Taxpayers not accepted for the pilot program will continue to follow existing LMSB, Appeals, and, where relevant, Tax Court, procedures for resolution of their cases.
3. SUBJECT MATTER FOR THE COMPREHENSIVE CASE RESOLUTION PROGRAM
The Comprehensive Case Resolution program is intended to expedite resolution of all disputed issues on all open tax years that have been or are being examined. Generally, all issues that could appropriately be considered by Appeals will be suitable for the program. To ensure fair treatment of the taxpayer, issues already agreed between the taxpayer and IRS in LMSB or Appeals generally will not be re-opened. Certain issues may not be appropriate for this process. The IRS and the taxpayer may agree to exclude these issues but proceed with the program on
Extension of Comprehensive Case Resolution Pilot Program
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