The Profit Split Method (PSM) is one of five OECD-recognized transfer pricing methods. It identifies the combined profits from controlled transactions and allocates them between related parties based on their contributions. It applies most appropriately when both parties make unique contributions, share significant risks, or operate in highly integrated structures.
How to Apply the PSM: Key Steps
- Identify the controlled transactions to be analyzed.
- Determine the combined profits – or losses – generated by those transactions.
- Select the appropriate approach: contribution analysis or residual analysis.
- Choose economically valid, objective allocation keys.
- Allocate profits between the associated enterprises on an arm’s length basis.
What Is the Profit Split Method?
The Profit Split Method (PSM) is a transactional profit method. Rather than pricing a single product or service, it focuses on the combined profits generated by a transaction. The PSM assumes that independent businesses would agree in advance on how to divide profits and risks. It replicates that model for related-party transactions.
One fact surprises many practitioners. The PSM is the only two-sided method among the five OECD-recognized transfer pricing methods. Every other method assesses one party’s return. The PSM examines both parties simultaneously. This makes it uniquely suited to transactions where neither party can serve as a straightforward tested party.
It is also worth noting that “profits” includes losses. If the venture generates a loss, that loss is allocated using the same split logic.
When Should the PSM Be Used?
The PSM is less commonly applied than methods such as the Transactional Net Margin Method (TNMM). It is most appropriate in three circumstances.
Unique Intangibles
Both parties contribute unique and valuable assets. These may include patents, proprietary technology, or specialized know-how. No reliable external comparables exist for these contributions. Standard one-sided methods cannot adequately capture the value created by both parties.
Highly Integrated Operations
The operations of both parties are so closely connected that they cannot be evaluated in isolation. A separate assessment of each entity would not reflect economic reality.
Shared Significant Risks
Both parties bear economically significant risks that are too interdependent to assess independently.
By contrast, where one party performs only routine functions with no unique contributions, the PSM is generally not appropriate.
How Is the PSM Applied?
The PSM follows a clear two-step process. First, identify the combined profits from the controlled transactions under review. Second, allocate those profits between the parties on an economically valid, arm’s length basis.
Two approaches support this allocation.
Contribution Analysis
Total profits are split based on each party’s relative contributions. Typical allocation keys include R&D expenditure, assets used, or functions performed.
Residual Analysis
Each party first receives a routine benchmark return for its standard contributions. This benchmark is drawn from comparable data. The remaining residual profit is then divided based on each party’s unique contributions.
Approach | Basis of Allocation | Best Used When |
Contribution Analysis | Relative value of functions and assets | Both parties contribute unique intangibles |
Residual Analysis | Residual profits after routine returns | One party performs routine functions |
PSM Strengths and Limitations
The PSM offers real advantages in the right context. It handles transactions where unique contributions make comparables unavailable or unreliable. It also assesses both parties’ returns, reducing the risk of an unreasonable profit outcome for either side.
However, the method presents real challenges. It requires detailed group financial data and consistent accounting records across jurisdictions. Identifying the right allocation keys – whether headcount, R&D spend, or asset values – is rarely straightforward.
There is also a subtler limitation worth understanding. Unlike the TNMM, the PSM does not rely primarily on external comparable databases. Its outcome is shaped significantly by the analyst’s choice of allocation keys. Two analysts reviewing the same facts can reach materially different results. This makes thorough documentation and a consistent, well-reasoned methodology critical – particularly if a tax authority challenges the analysis.
Conclusion
The PSM is the only OECD-recognized method that assesses both parties to a transaction simultaneously. This makes it indispensable for highly integrated or intangible-rich arrangements where one-sided methods fall short.
If your group operates in structures where the PSM may apply, getting the methodology right from the outset matters. A well-documented profit split can be a strong line of defense in a tax authority audit. A poorly supported one can attract exactly the scrutiny you want to avoid.
TPTAX advises multinational groups on transfer pricing documentation, method selection, and cross-border compliance. If the PSM may apply to your intercompany transactions, contact our team for a consultation.
FAQ
What is the Profit Split Method in transfer pricing?
The PSM allocates combined profits from controlled transactions between related entities based on their respective contributions. It is one of five OECD-recognized transfer pricing methods.
When should the Profit Split Method be used?
It applies when both parties contribute unique intangibles, when operations are highly integrated, or when significant risks are shared and too interdependent to assess separately.
How is the profit split calculated?
Total profits are identified and divided using objective allocation keys, under either a contribution analysis or residual analysis approach.
What are the main advantages of the Profit Split Method?
It handles cases where comparables are unavailable and assesses both parties’ returns simultaneously. This reduces the risk of an unreasonable profit outcome for either side.
What are the main limitations of the Profit Split Method?
It requires detailed group financial data. Allocation key selection involves analyst judgment, meaning two reviewers can reach different results from the same facts.
Is the Profit Split Method the same as the TNMM?
No. The TNMM assesses one party’s net margin against external comparables. The PSM examines both parties simultaneously and does not rely on external databases in the same way.



