Explore the comprehensive rules for attributing stock ownership and defining related parties, including family and entity constructive ownership per the Internal Revenue Code.
Related party transactions are a major focus in federal tax law and practice, and the attribution of stock ownership—often referred to as “constructive ownership”—plays a pivotal role in determining whether two parties are in fact “related.” The Internal Revenue Code (IRC) contains several sections (notably IRC §§267, 318, 707, and others) that set forth these constructive ownership, or attribution, rules. These rules serve to prevent taxpayers from engaging in transactions with closely connected individuals or entities in order to obtain tax advantages that Congress did not intend.
This section will walk you through:
• The rationale behind related party rules and the most commonly encountered provisions.
• Definitions of “related parties” under various circumstances.
• Family attribution rules (parents, children, spouses, siblings).
• Entity attribution rules and the concept of indirect and double attribution.
• Real-world examples demonstrating how these rules apply in practice.
By the end of this discussion, you will be better equipped to identify situations in which constructive ownership rules apply and understand the tax consequences that arise from violating these provisions.
Attribution rules are designed to reveal the true economic relationships between parties and to disallow transactions that might otherwise produce artificial tax losses or gains. For example, a taxpayer who sells depreciated property at a loss to a spouse, child, or sibling is effectively transferring the economic interest but staying in the same family “unit.” Consequently, the Code typically disallows recognizing such losses for tax purposes.
The key takeaway is that the Code treats individuals and entities as owning, or indirectly owning, stock that in reality may be held by trusted family members or affiliated businesses. This approach closes potential loopholes that would otherwise invite abuse—such as artificially shifting income or losses to minimize overall taxation.
• Disallowance of Losses: Under IRC §267, losses on sales to related parties are typically disallowed.
• Gain Treatment: Gains on sales to related parties often require special treatment or reclassification.
• Qualified Dividends and Capital Gains: Certain dividend or capital gain preferences may not apply if the parties are not truly “arm’s length.”
• Passive Activity Rules: Allocation of income, deductions, and losses may be subject to scrutiny if parties share too close a relationship.
• Trust, Estate, and Gift Taxes: Attribution rules also surface in estate planning.
Differentiating between arm’s length transactions and related party transactions enables the Internal Revenue Service (IRS) to more effectively assess the validity of certain claimed tax benefits.
The two most commonly cited sources for attribution of ownership rules are IRC §§267 and 318:
• IRC §267: Focuses on disallowing certain losses between related parties. It defines “related parties” broadly, including family members, entities in which there is a controlling interest, and other direct or indirect relationships.
• IRC §318: Expands and clarifies the concept of constructive ownership, particularly for corporate shareholder scenarios.
Additional rules can be found in:
Practitioners should be aware that each of these Code sections may contain slight variances in definitions and scope of “related parties.” Nonetheless, the key principles of family attribution, entity attribution, and constructive or indirect ownership are largely consistent.
While definitions vary slightly across Code sections, a general overview of related parties includes:
Unexpected relationships also arise: for instance, a corporation and a partnership may be deemed related if a majority corporate shareholder directly or indirectly owns a majority interest in that partnership.
Under family attribution rules, you must treat stock owned by certain family members as yours, even if you do not personally hold legal title to that stock. These family members typically include:
• Spouse.
• Children, grandchildren, and other lineal descendants.
• Parents, grandparents, and other lineal ancestors.
IRC §318 specifically includes spouses, children, grandchildren, and parents. Notably, siblings, in-laws, and more distant relatives may or may not be covered, depending on the context. Always confirm the list of “family members” covered by the particular statute you are analyzing.
Assume John owns no direct interest in Company X, but his wife, Mary, owns 60% of the company. If the related Code section imposes a 50% threshold for deciding whether John is considered a related party to Company X, John would be treated as a constructive owner of 60% of the company by virtue of Mary’s ownership. John and Mary are thus “related parties” to Company X for that provision’s purpose.
In addition to family members, the Code imposes rules that attribute ownership through entities, such as corporations, partnerships, limited liability companies (LLCs), and trusts. Ownership in an entity can be attributed to the individual owners, or vice versa, depending on factors such as:
• The percentage of stock owned by individuals who collectively control the corporation (generally more than 50%).
• Percentage interests in partnerships or LLCs.
• Beneficial interests in trusts.
In particular, IRC §318 describes situations in which stock owned by or for a partnership, trust, or estate is considered owned by its partners or beneficiaries. Similarly, stock owned by a partner or beneficiary can be attributed back to the partnership or trust. However, there are important limitations—for example, if an entity is not “controlled” within the meaning of the statute, certain attributions may not apply.
Suppose ABC Corporation owns 40% of XYZ Inc. You own 60% of ABC Corporation’s stock. Because you have a controlling interest (i.e., more than 50%) in ABC Corporation, the 40% interest that ABC holds in XYZ may be attributed to you personally. Consequently, from the IRS’s perspective, you indirectly own 40% of XYZ Inc. This ownership can push you over certain related party thresholds, potentially affecting the tax consequences of transactions between you, ABC, and XYZ.
Constructive ownership can lead to “double” or “multiple” attributions of stock. However, certain Code provisions prevent infinite regress or repeated attributions—often referred to as the “no reattribution” rule. For instance, if stock is attributed from your spouse to you, and then from you to a corporation, it does not automatically get reattributed from the corporation back to your spouse. These anti-reattribution rules vary by Code section, so verifying the existence and scope of such a rule is critical to your analysis.
A common complexity is that, under some statutes, the stock that is attributed from your child to you might not then be attributed from you to your spouse. The logic is that the law tries to stop “circular attributions.” However, IRC §318 includes specific rules regarding which attributions are allowed to cross over multiple times and which ones are disallowed.
Below is a simple Mermaid flowchart illustrating the idea of family-to-taxpayer attribution. This diagram focuses on a straightforward example: how family members attribute ownership to a single taxpayer. Keep in mind that entity ownership can add multiple layers of complexity.
flowchart LR A["Spouse <br/> Ownership"] --> B["Taxpayer"] C["Children <br/> Ownership"] --> B D["Parents <br/> Ownership"] --> B
• Spouse → Taxpayer: A spouse’s ownership is generally attributed 100% to the taxpayer.
• Children → Taxpayer: A child’s ownership can be fully attributed to the parent.
• Parents → Taxpayer: A parent’s ownership is usually attributed to the child.
Use caution when multiple levels of interwoven relationships exist. For advanced entity structures, try creating more elaborate diagrams until you pinpoint whether a given relationship crosses the threshold of control set by law.
• Scenario: Barbara owns stock in Red Corp. with a high basis. Her husband Jim, who needs funds, is planning to buy Red Corp. stock.
• Analysis: Even though Barbara is technically “selling” the stock to Jim, under the attribution rules of IRC §§267 and 318, Jim’s purchase from Barbara is essentially treated as if Barbara retained the stock. Therefore, any loss (or certain aspects of gain) that might arise on this sale may be disallowed or recharacterized.
• Scenario: Karen and Bob form KB LLC. Karen invests 60%, Bob invests 40%. The LLC acquires 70% of a separate entity, MNO Inc.
• Analysis: Because Karen owns more than 50% of KB LLC and KB LLC owns 70% of MNO Inc., Karen is treated as owning that 70% interest in MNO. Bob is also treated as owning 70% if specific sections of the Code apply entity-to-partner attribution. In turn, if Karen personally engages in a sale with MNO Inc. that is subject to a related party rule, the transaction may be disallowed or recast for tax purposes.
• Scenario: Suppose Sarah owns a 30% stake in Company X. Sarah’s father, David, owns 40% of Company X, and David’s brother (Sarah’s uncle) owns another 30%.
• Analysis: Under many Code sections, Sarah is considered a “related party” to David. Because of the close relationship, if David sells additional stock to Sarah at below-market value, the transaction may be subject to scrutiny. The uncle, however, may or may not be attributed ownership through David for Sarah’s benefit, depending on the sections invoked (uncles often do not fall within the “lineal ancestor or descendant” definition).
• Incorrectly Excluding Siblings: Some taxpayers mistakenly assume siblings always qualify under family attribution. In fact, siblings are not always included, unless specifically named in the relevant statute (e.g., certain trust or partnership rules).
• Misunderstanding “Control” Thresholds: Not all attribution rules start at 50%. Some require 80% ownership (e.g., certain corporate reorganizations).
• Overlooking Entity-to-Owner Attribution: Taxpayers sometimes focus solely on family relationships without realizing that their controlling interest in a corporation, partnership, or trust brings that entity’s ownership into the equation.
• Failing to Understand “No Reattribution”: A repeated chain of attributions may stop under the no reattribution rules. Missing these distinctions can lead to erroneous conclusions about control.
In practice, understanding related party rules goes beyond preventing disallowed losses or recharacterized gains. It is also crucial for:
Ensuring compliance requires ongoing vigilance. Relationship statuses evolve (e.g., marriages, divorces, births, deaths), and business structures shift. A transaction that once was not subject to related party rules can suddenly fall within them if a party’s ownership crosses the critical threshold.
• IRC §§267 and 318: The primary related party and constructive ownership statutes.
• Treas. Reg. 1.267: Regulations elaborating on the disallowance of losses in related party transactions.
• Publication 544 (Sales and Other Dispositions of Assets): Offers guidance and scenarios for capital gains and losses involving related parties.
• Chapter 29: Characterization of Gains and Losses and Chapter 30.2 in this guide (focus on disallowance of losses).
• Chapter 9: Debtor-Creditor Relationships might also incorporate certain related party rules if, for example, a loan between related parties is not at arm’s length.
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