Transfer pricing is the single most common area of tax exposure in cross-border businesses — and the one that is most frequently underprepared until it surfaces in due diligence. For any company operating across multiple jurisdictions with intercompany transactions, transfer pricing is not optional compliance. It is a material financial risk that affects your valuation, your tax liability, and your ability to close an M&A transaction.

WHAT IS TRANSFER PRICING?

Transfer pricing refers to the prices charged between related entities within the same corporate group for goods, services, intellectual property, and financing. When your US parent company charges your European subsidiary for management services, or your operating company in one jurisdiction licenses IP from a holding company in another, those charges must be set at arm's length — the price that unrelated parties would agree to in an open market.

Tax authorities in every major jurisdiction — the IRS, HMRC, the German Finanzamt, and equivalents across the Middle East and Asia — scrutinise intercompany transactions to ensure that profits are not being artificially shifted to low-tax jurisdictions. The penalties for non-compliance range from adjustments and interest to significant fines.

THE FIVE MOST COMMON TRANSFER PRICING METHODS

The OECD — whose guidelines are followed in most jurisdictions — recognises five primary transfer pricing methods. The appropriate method depends on the nature of the transaction and the availability of comparable data.

The Comparable Uncontrolled Price method compares the intercompany price directly to prices charged in comparable transactions between unrelated parties. It is the most direct method but requires genuine comparable data.

The Cost Plus method starts with the costs incurred by the entity providing goods or services and adds an appropriate markup. It is commonly used for manufacturing and service transactions where costs are well-defined.

The Resale Price method starts with the price at which a product is sold to an independent party and works backwards, deducting an appropriate gross margin. It is typically used for distribution transactions.

The Transactional Net Margin method compares the net profit margin of a controlled transaction to those achieved in comparable uncontrolled transactions. It is the most widely used method in practice because it requires less precise comparables than transaction-based methods.

The Profit Split method divides the combined profits from a controlled transaction between the related parties based on their relative contributions. It is used for highly integrated transactions where each party makes unique and valuable contributions.

WHY TRANSFER PRICING SURFACES IN M&A DUE DILIGENCE

In every cross-border M&A transaction, the buyer's tax advisors will review the company's intercompany transactions as a priority. They are looking for three things: whether transfer pricing documentation exists, whether the prices charged are defensible, and whether there is any undisclosed tax exposure from prior periods.

If transfer pricing documentation does not exist, they will assume the worst-case scenario and either price that risk into the deal or require an indemnity from the seller. If documentation exists but the prices are not arm's-length, they will quantify the potential adjustment and treat it as a liability.

In cross-border deals we have worked on, undisclosed transfer pricing exposure has resulted in price reductions, extended indemnity periods, and in some cases, the collapse of transactions that had reached advanced negotiation stages.

HOW TO PREPARE

The preparation is straightforward but requires starting early. Document every intercompany transaction type — management services, IP licensing, financing, product sales, cost sharing. For each transaction type, select an appropriate transfer pricing method and identify the comparable data that supports it. Prepare contemporaneous documentation — written at the time the transaction occurs, not reconstructed later.

In jurisdictions where transfer pricing documentation is legally required — which includes the US, the UK, Germany, France, and most OECD members — the documentation must meet specific standards. Engage a transfer pricing specialist, not a generalist accountant, to prepare and maintain it.

CONCLUSION

Transfer pricing is not a complexity that can be addressed in the