Related-Party Transaction — A related party transaction (also called a controlled transaction, intercompany transaction, or associated enterprise transaction) is any commercial or financial dealing between entities that are connected through common ownership, control, or significant...
A related-party transaction (also called a controlled transaction, intercompany transaction, or associated enterprise transaction) is any commercial or financial dealing between entities that are connected through common ownership, control, or significant influence. Because related parties do not negotiate at arm's length like independent parties would, these transactions are subject to transfer pricing rules to ensure appropriate profit allocation.
The defining characteristic is the relationship between the parties—not the nature of the transaction itself. Any transaction type (goods, services, financing, intangibles) becomes a related-party transaction when occurring between associated enterprises.
OECD/Regulatory Reference
The OECD Transfer Pricing Guidelines (2022) use the term "controlled transactions" interchangeably with related-party transactions. The Guidelines explain that when independent enterprises transact, their commercial and financial relations are ordinarily determined by market forces. When associated enterprises transact, their relations may not be directly affected by external market forces in the same way—which is why transfer pricing rules exist.
Article 9 of the OECD Model Tax Convention defines "associated enterprises" as situations where one enterprise participates directly or indirectly in the management, control, or capital of another enterprise, or where the same persons participate in both enterprises.
US Treasury Regulations §1.482-1 use the concept of "controlled transactions" and define controlled broadly as any kind of control, direct or indirect, whether legally enforceable or not (see §1.482-1(i)(4)).
In Practice
What Creates a Related-Party Relationship:
Relationship Type
Description
Common Threshold
Direct Ownership
Parent owns subsidiary shares
>50% voting control
Indirect Ownership
Parent owns sub-subsidiary through chain
Ultimate control through chain
Common Ownership
Same shareholders own both entities
>50% common ownership
Common Control
Same persons control both entities
Control through management/board
Significant Influence
Ability to influence decisions
Often 20-25% ownership
Types of Related-Party Transactions:
Category
Transaction Types
Transfer Pricing Issues
Tangible Goods
Raw materials, finished goods, components
Purchase/sale pricing
Services
Management, technical, administrative
Service fee determination
Intangibles
Licenses, royalties, cost sharing
Royalty rates, ownership issues
Financing
Loans, guarantees, cash pooling
Interest rates, guarantee fees
Cost Sharing
R&D cost contributions
Contribution allocation
Identifying Related Parties—Key Questions:
Question
If Yes → Related Party
Does entity A own >50% of entity B?
Yes
Do the same shareholders control both entities?
Yes
Does the same management make key decisions for both?
Yes
Can one entity significantly influence the other's operations?
Potentially
Would the transaction terms differ if parties were independent?
Indicates related-party concern
Beyond Legal Ownership: Related-party relationships can exist through management control, economic dependence, or influence—not just legal ownership. A company technically unrelated by shareholding might still be "associated" if the same individuals control decision-making.
Example
MNE Structure: USCo (US parent, 100% owner)
Entity
Relationship
Transaction with USCo
Related Party?
GermanCo
100% owned sub
Purchases finished goods
✅ Yes
UKCo
100% owned sub
Receives management services
✅ Yes
JVCo
51% owned JV
License of technology
✅ Yes
SupplierX
30% owned
Supplies raw materials
⚠️ Likely (significant influence)
CustomerY
Unrelated
Sells finished products
❌ No
BankZ
Unrelated
Receives loan financing
❌ No
Documentation Implications:
Related-Party Transaction
Documentation Required
USCo → GermanCo goods
Local File benchmarking (both jurisdictions)
USCo → UKCo services
Service fee documentation, benefit test
USCo → JVCo license
Royalty rate benchmarking
USCo ← SupplierX materials
Possibly (check local threshold for significant influence)
Related vs. Unrelated Transactions
Aspect
Related-Party Transaction
Unrelated Transaction
Pricing Dynamics
May not reflect market forces
Market-determined
Regulatory Scrutiny
Subject to transfer pricing rules
Generally accepted as arm's length
Documentation
Transfer pricing documentation required
Normal business records
Adjustment Risk
Tax authority may adjust
No transfer pricing adjustment
Terms Setting
Must simulate arm's length
Naturally arm's length
Transactions with "Related" Independent Parties: Some transactions with technically unrelated parties may still receive scrutiny if circumstances suggest non-arm's length dealing—e.g., transactions with entities economically dependent on the MNE, exclusive suppliers, or captive customers. Substance matters.
What percentage ownership creates a related-party relationship?
Most jurisdictions use >50% ownership or control as the primary threshold for related parties. However, significant influence (often 20-25% ownership) can also create related-party status in some contexts. The OECD doesn't specify exact percentages—it focuses on whether entities are "associated enterprises" through direct/indirect participation in management, control, or capital.
Are transactions between sister companies (same parent, no direct ownership) related-party transactions?
Yes. Sister companies under common ownership are related parties. GermanCo and UKCo, both 100% owned by USCo, are related to each other even though neither owns shares in the other. Their transactions are subject to transfer pricing rules because USCo's control affects both entities' behavior.
Do related-party transactions always require transfer pricing documentation?
Documentation requirements depend on jurisdiction rules and thresholds. Most countries require documentation only for material transactions above certain value thresholds. However, even transactions below documentation thresholds must be priced at arm's length—the arm's length principle applies regardless of documentation requirements.
How do I identify all related-party transactions in my organization?
Map your legal entity structure, then identify all intercompany flows: goods, services, financing, cost allocations, management fees, royalties, and cost sharing. Review intercompany accounts, consolidation eliminations, and related-party disclosure schedules in financial statements. Ensure treasury, procurement, and business unit functions report intercompany arrangements.
What about transactions with joint ventures or minority-owned associates?
Joint ventures (typically 50/50 or similar) and associates (20-50% owned) may trigger related-party rules depending on the level of control or influence. Many jurisdictions apply transfer pricing rules to entities where one party has significant influence, even without majority control. Check local definitions—they vary.
Can a transaction be "related party" for one party but not the other?
In theory, the relationship is symmetrical—if A is related to B, B is related to A. However, documentation obligations may differ based on jurisdiction rules, thresholds, and which entity is the tested party. Both parties should document, but the depth and specific requirements may vary by jurisdiction.
Do related-party rules apply to domestic transactions?
In most countries, transfer pricing rules primarily target cross-border related-party transactions. However, some jurisdictions (notably the US and India) also apply transfer pricing or related-party rules to domestic transactions, particularly when there are tax rate differentials between related parties (e.g., one entity has losses or tax holidays).