Related Party Transactions Under GAAP: Scope, Disclosures, and SEC Rules

Under U.S. GAAP, related party transactions are governed primarily by ASC Topic 850, which requires you to identify related parties broadly, generally record transactions at the amount the parties actually exchanged, and disclose the relationship, the nature and dollar amount of the transactions, settlement terms, and any outstanding balances in the financial statement footnotes. The rules exist because related parties do not negotiate at arm’s length, so the stated price may not reflect fair value, and readers of the financial statements need enough information to judge that risk themselves. Separate measurement rules apply to transfers between entities under common control, below-market loans, leases, and guarantees, and public companies face additional SEC requirements layered on top.

Who ASC 850 Treats as a Related Party

ASC 850 defines related parties by whether one party can control or significantly influence the other’s financial and operating decisions. The named categories include:

Affiliates, such as two subsidiaries of the same parent corporation.
Equity method investees, where the reporting entity owns enough to apply the equity method.
Employee benefit trusts managed by the entity’s own leadership, including pension and profit-sharing plans.
Principal owners with significant voting interests, together with their immediate families.
Management, meaning officers, directors, and others who direct the entity’s activities, together with their immediate families.

Immediate family is drawn broadly. It covers any family member who might control or influence a principal owner or member of management, or be controlled or influenced by them, because of the family relationship. The judgment call falls on management, and depending on the facts it can reach well past spouses and children.

The list is not exhaustive. Management has to evaluate whether a relationship involves enough control or influence to qualify even when it does not fit a named category. That judgment matters most with complex ownership structures, joint ventures, and de facto agency relationships where one party acts on behalf of another without a formal agreement.

What Counts as a Related Party Transaction

A related party transaction is any transfer of resources, services, or obligations between the reporting entity and a related party. Sales of goods, purchases, leases, loans, and management service arrangements all qualify. The scope is wider than many preparers expect.

A transaction qualifies even when no money changes hands. An interest-free loan, administrative services provided at no cost, or office space used without a lease payment all fall within ASC 850.¹ The trigger is the relationship and the transfer of economic value, not the invoice. Zero-price arrangements are where the biggest measurement and disclosure problems arise, and they are the easiest to miss.

One scope note worth flagging: compensation arrangements, expense allowances, and similar items occurring in the ordinary course of business are excluded from the detailed disclosure requirements of ASC 850 even though they involve management. A private company whose only employees are its owners does not have to break out ordinary salary arrangements in the related party footnote. Unusual compensation arrangements or transactions beyond routine pay still need full disclosure.

How to Measure the Transaction

The core measurement problem is that the agreed price may bear no relation to fair value. Two subsidiaries of the same parent can set any price they want for a transfer, and no market mechanism pushes back. GAAP handles this with a general rule and specific rules for certain transaction types.

The General Rule

GAAP generally requires related party transactions to be recorded at the amount actually exchanged. If a parent sells inventory to its subsidiary for $500,000, the subsidiary records a $500,000 purchase, even if the inventory’s fair value is $750,000. The footnotes then carry the burden of alerting readers to the relationship and the possibility that the price was not arm’s length.

That approach shifts when the transaction is effectively a capital contribution, a dividend, or a non-monetary exchange, where other GAAP literature governs the measurement.

Transfers Between Entities Under Common Control

When assets or entire businesses move between entities under common control, the receiving entity records what it got at the historical carrying amount used by the parent of the group. This predecessor-basis approach prevents the artificial recognition of gains or losses within a controlled group. Any gap between the consideration paid and the net carrying amount of what was received is recognized directly in equity, not on the income statement.

For asset transfers, the receiving entity picks the assets up at carrying value on a going-forward basis. For transfers of entire businesses, the receiving entity typically restates its prior-period financial statements to present the combined entities retrospectively, as if the combination had always existed. The transferring entity treats the transaction as a disposal and records any difference between proceeds and book value as an equity adjustment.

Below-Market and Interest-Free Loans

An interest-free or below-market loan between related parties transfers economic value that GAAP wants to make visible, but the treatment depends on the relationship. ASC 835-30, which governs imputed interest on notes and receivables, explicitly excludes transactions between a parent and its subsidiaries and between subsidiaries of a common parent. For intercompany loans within a consolidated group, the general GAAP imputation rules do not apply, though related party disclosure is still required. For loans between other related parties where ASC 835-30 does apply, interest is imputed at a market-based rate, and the difference between the stated and imputed rate is typically treated as a capital contribution or distribution depending on which way the value is moving.

The tax treatment of below-market loans runs on a separate track under IRC Section 7872 and can produce a different answer. That is a tax question, not a GAAP question, and the two conclusions should be reconciled rather than assumed to match.

Leases Between Related Parties

Under ASC 842, leases between related parties follow the same classification and measurement rules as any other lease, with one important twist: classification is based on the legally enforceable terms of the arrangement, not just the written contract. When related parties share a controlling owner and can modify the lease at will, the legally enforceable terms may differ from what is on paper.

For private companies and not-for-profit entities, ASU 2023-01 provides a practical expedient that allows these organizations to use the written terms of a common-control arrangement to determine whether a lease exists and how to classify it. If no written terms exist, the shortcut is not available, and ASC 842 applies based on whatever terms are legally enforceable.

What You Have To Disclose

Measurement alone cannot show readers what is going on. The footnote disclosures are where ASC 850 does most of its work, and the requirements are specific.

The Core Elements

For each material related party transaction, the footnotes have to include:

The nature of the relationship, identified explicitly, such as parent-subsidiary, entity-key management personnel, or common ownership.
A description of the transaction, with enough detail that a reader can understand the effect on the financial statements. This covers transactions where no amounts or only nominal amounts were assigned.
The dollar amount of transactions for each period presented in the income statement, plus any change in how the terms were established compared to the prior period.
How the transaction was settled or will be settled, whether through cash, non-monetary assets, or creation or forgiveness of debt.
Amounts due from or to related parties as of each balance sheet date, shown separately from balances owed by or to unrelated parties.¹

Common Control Relationships, Even Without Transactions

One requirement catches many preparers off guard. If the reporting entity and another entity are under common ownership or management control, the nature of the control relationship must be disclosed even if no transactions occurred during the period. The reasoning is that common control itself can distort results. A parent could direct business away from one subsidiary to benefit another, and users of the statements need to know that possibility exists. The trigger is the relationship, not a transaction.¹

Be Careful With Arm’s-Length Claims

Companies sometimes want to reassure investors by stating in the footnotes that a related party transaction was conducted on arm’s-length terms. GAAP allows this claim only if the company can actually prove it, typically through independent market studies or appraisals showing the terms match what an unrelated third party would have accepted.¹ That substantiation is expensive and difficult. Most companies avoid the assertion rather than make a claim they cannot defend. An unsupported arm’s-length statement in the footnotes becomes exhibit A if the transaction is later challenged.

Guarantees Between Related Parties

Intercompany guarantees are one of the most common related party arrangements, and the treatment is not what preparers often assume. Under ASC 460, a guarantor normally must recognize a liability at inception for the fair value of the guarantee obligation. Guarantees between parents and subsidiaries, and between entities under common control, are explicitly exempt from both the recognition and measurement provisions of ASC 460.²

The exemption covers a parent’s guarantee of its subsidiary’s debt to a third party, a subsidiary’s guarantee of its parent’s debt, and guarantees between sister subsidiaries. No fair value liability needs to be booked for any of these in the consolidated financial statements.

The exemption from recognition does not remove the guarantee from the footnotes. Related party guarantees remain subject to the disclosure requirements of both ASC 460 and ASC 850. If a subsidiary issues stand-alone financial statements and its parent has guaranteed its debt, that guarantee has to be disclosed even though no liability is recorded for it.

Separate-Entity Statements and the Consolidation Trap

Transactions between a parent and its wholly-owned subsidiary are eliminated in consolidation for external reporting. The sale, the receivable, the payable, and any unrealized profit disappear from the consolidated financial statements. Elimination does not excuse the entities from ASC 850 in their separate financial statements. If the subsidiary issues stand-alone statements to lenders, regulators, or minority investors, those statements must carry the full related party footnotes, including the nature of the relationship, transaction amounts, settlement terms, and outstanding balances. Consolidation makes the transactions invisible in the group’s financials; the separate-entity disclosures put them back on the page where they matter.

Additional SEC Requirements for Public Companies

Public companies face reporting obligations on top of ASC 850, designed to put related party information in front of investors rather than let it sit buried in the notes.

Regulation S-X

Rule 4-08(k) of Regulation S-X requires related party transaction amounts to appear on the face of the balance sheet, the statement of comprehensive income, or the statement of cash flows, not solely in the notes. When separate financial statements are presented for investees or subsidiaries, any intercompany profits or losses from related party transactions and their effects must also be disclosed.³

Regulation S-K Item 404

Item 404 of Regulation S-K requires disclosure in proxy statements and annual reports of any transaction since the beginning of the last fiscal year, or any currently proposed transaction, where the registrant was or will be a participant, the amount involved exceeds $120,000, and any related person had or will have a direct or indirect material interest. Smaller reporting companies face the lower of $120,000 or one percent of their average total assets at year-end for the last two completed fiscal years.⁴

Form 8-K

If a public company enters into a material definitive agreement outside the ordinary course of business, a Form 8-K is required describing the agreement, including any material relationship between the registrant or its affiliates and the other parties. Termination of such an agreement triggers the same filing. A significant new related party contract can create an immediate disclosure obligation, not just a year-end footnote.

What Auditors Will Look For

Related party transactions get more audit attention than almost any other area of the financial statements because they are a known vector for fraud and earnings manipulation. For public company audits, PCAOB Auditing Standard 2410 sets specific procedures.

Auditors must inquire of management about the names of all related parties, changes from the prior period, the nature and ownership structure of each relationship, and the terms and business purposes of transactions entered into or terminated during the period. They must also ask about transactions not authorized under the company’s established policies or where exceptions to those policies were granted.⁵ The inquiries extend beyond management to others within the company likely to have knowledge of related party relationships, and to the audit committee or its chair.

For any related party transaction requiring disclosure or identified as a significant risk, the auditor reads the underlying documentation and evaluates whether the terms are consistent with management’s explanations. The auditor confirms the transaction was authorized under company policy and that any exceptions were documented.⁵ Auditors also hunt for undisclosed related parties through tax filings, corporate life insurance policies, contracts, organizational charts, and the company’s website. Red flags include contracts for below-market goods or services, bill-and-hold arrangements, uncollateralized loans, and transactions where goods are sold and later repurchased.

Expect any material related party transaction to be examined closely, and build the documentation at the time of the transaction. Reconstructing a business purpose after the fact, under audit pressure, is far harder than capturing it when the deal is being approved.

1
Deloitte Accounting Research Tool (DART). 5.3 Related-Party Transactions
2
Financial Accounting Standards Board (FASB). Summary of Interpretation No. 45
3
eCFR. 17 CFR 210.4-08 – General Notes to Financial Statements
4
eCFR. 17 CFR 229.404 – Transactions With Related Persons, Promoters and Certain Control Persons
5
PCAOB Public Company Accounting Oversight Board. AS 2410 – Related Parties