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Introduction

SECTION 4. APPLICATION

Internal Revenue Bulletin 2010-4 · 2026-10-03 edition · updated 2026-10-04 · United States

.01 Disclosure Requirements for Tax- payer Groupings.

Sections 4.02 through 4.04 of this revenue procedure require taxpayers to report to the Service, as part of their annual income tax return, certain changes to the taxpayer’s groupings that occur during the taxable year. Section 4.05 of this revenue procedure provides special rules for groupings by partnerships and S corporations. Section 4.06 of this revenue procedure governs the treatment of groupings existing prior to the effective date of this revenue procedure. Section 4.07 of this revenue procedure stipulates the consequences for failing to make the disclosures required by sections 4.02 through 4.04.

.02 Statement Required for New Group- ings.

A taxpayer shall file a written statement with its original income tax return for the first taxable year in which two or more trade or business activities or rental activities are originally grouped as a single activity. This statement must identify the names, addresses, and employer identification numbers, if applicable, for the trade or business activities or rental activities that are being grouped as a single activity. In addition, any statement reporting a new grouping of two or more trade or business activities or rental activities as a single activity must contain a declaration that the grouped activities constitute an appropriate economic unit for the measurement of gain or loss for purposes of section 469. .03 Statement Required for Addition of New Activities to Existing Groupings.

If a taxpayer adds a new trade or business activity or a rental activity to an existing grouping for a taxable year, the taxpayer shall file a written statement with the taxpayer’s original income tax return for that taxable year. This statement must identify the names, addresses, and employer identification numbers, if applicable, for the new trade or business activity or rental activity that is being added to the existing grouping, as well as the names, addresses, and employer identification numbers, if applicable, for the activity or activities within the existing grouping. In addition, the statement reporting an addition to an existing grouping must contain a declaration that the activities constitute an appropriate economic unit for the measurement of gain or loss for purposes of section 469.

.04 Statement Required for Regroup- ings.

Under § 1.469–4(e)(2), if it is determined that the taxpayer’s original grouping was clearly inappropriate or a material change in the facts and circumstances has occurred that makes the original grouping clearly inappropriate, the taxpayer must regroup the activities. If such a determination and regrouping is made, the taxpayer shall file a written statement with the taxpayer’s original income tax return for the taxable year in which the trade or business activities or rental activities are regrouped. This statement must identify the names, addresses, and employer identifi

2010–4 I.R.B. 330 January 25, 2010

obligations. The likely respondents are individuals and section 469 entities, including certain C corporations, S corporations, and partnerships.

The estimated total annual reporting burden for the taxable years in which this revenue procedure applies is 36,000 hours.

The estimated annual burden per respondent for the taxable years in which this revenue procedure applies varies from 10 minutes to 20 minutes, depending on individual circumstances, with an estimated average burden of 15 minutes. The estimated annual number of respondents for the taxable years in which this revenue procedure applies is 144,000.

The estimated annual frequency of responses is regular.

Books or records relating to a collection of information must be retained as long as their contents may become material in the administration of any internal revenue law. Generally tax returns and tax return information are confidential, as required by 26 U.S.C. 6103.

DRAFTING INFORMATION

The principal authors of this revenue procedure are Bryan A. Rimmke and Jonathan E. Cornwell of the Office of Associate Chief Counsel (Passthroughs & Special Industries). For further information regarding this notice, contact Mr. Rimmke or Mr. Cornwell at (202) 622–3050 (not a toll-free call).

tive date of this revenue procedure (pre-existing groupings) until the taxpayer makes a change to the grouping as described in sections 4.03 and 4.04 of this revenue procedure.

.07 Effect of Failure to Report . Except as provided in § 4.05, if a taxpayer is engaged in two or more trade or business activities or rental activities and fails to report whether the activities have been grouped as a single activity in accordance with this revenue procedure, then each trade or business activity or rental activity will be treated as a separate activity for purposes of applying the passive activity loss and credit limitation rules of section 469. Notwithstanding the previous sentence, a timely disclosure shall be deemed made by a taxpayer who has filed all affected income tax returns consistent with the claimed grouping of activities and makes the required disclosure on the income tax return for the year in which the failure to disclose is first discovered by the taxpayer. If the failure to disclose is first discovered by the Service, however, the taxpayer must also have reasonable cause for not making the disclosures required by this revenue procedure. Although the default rule established by this section 4.07 will generally result in unreported activities being treated as separate activities, the Commissioner may still regroup a taxpayer’s activities to prevent tax avoidance pursuant to § 1.469–4(f). This revenue procedure provides alternative re

lief for untimely filing of the disclosures required by this revenue procedure; therefore, relief for untimely disclosures under § 301.9100 of the Procedure and Administration Regulations is not available pursuant to § 301.9100–1(d)(2).

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