ICTS is more than a compliance exercise: Why now is the time to review your transfer pricing model

With HMRC preparing to introduce the International Controlled Transactions Schedule (ICTS), transfer pricing is entering a new phase. Rather than simply requesting documentation (Master and Local Files) during an enquiry, HMRC will receive structured transfer pricing data alongside corporation tax returns, and Country by Country reports, where applicable, allowing it to identify risk more efficiently and target enquiries more effectively. 

For many organisations, ICTS represents a significant change in how transfer pricing compliance is approached. Success will depend not only on having an appropriate transfer pricing policy, but also on ensuring that policy is consistently reflected in operational data, documentation and reporting. 

HMRC’s transfer pricing focus is intensifying

Recent HMRC statistics demonstrate a clear shift in transfer pricing enforcement. While enquiry volumes have remained relatively stable, transfer pricing yield has increased significantly, indicating that HMRC is becoming more effective at identifying high-value cases and securing adjustments. 

At the same time, HMRC continues to invest in specialist transfer pricing resources and has expanded its compliance guidance, providing greater clarity around the areas it considers to present the highest levels of risk. 

ICTS is expected to strengthen this approach further by providing HMRC with structured data that can be analysed consistently across taxpayers. 

ICTS is designed as a risk assessment tool

One of the key messages from our recent webinar was that ICTS should not be viewed as another reporting obligation. 

Instead, it is fundamentally a risk profiling exercise. 

Rather than relying solely on narrative documentation provided within the scope of a tax audit, HMRC will receive structured information about transfer pricing policies, transaction types, methodologies and financial outcomes, on an annual, recurring basis. This allows data to be compared across years, across businesses and against information already available from other tax filings. 

As a result, consistency becomes increasingly important. Your transfer pricing documentation, ERP data, intercompany agreements, financial statements and tax returns should all support the same underlying commercial story. 

Any inconsistencies are likely to become far easier for HMRC to identify. 

Data governance is now transfer pricing governance

Many organisations already have well-designed transfer pricing policies. The challenge often lies in implementation. 

A documented policy may specify that a routine service provider should earn a consistent cost-plus return, but if operational data tells a different story, questions are likely to follow. 

Businesses should therefore consider: 

• Does our financial data support our transfer pricing policy? 

• Are our intercompany agreements aligned with how transactions actually operate? 

• Can we evidence our methodology with current benchmarking? 

• Are Tax, Finance and IT working from consistent data sources? 

Increasingly, effective transfer pricing compliance depends as much on data governance as it does on technical tax analysis. 

Why businesses should prepare during 2026

Although ICTS applies to accounting periods beginning on or after 1 January 2027, waiting until filing season could create unnecessary risk. 

The current draft ICTS includes supplementary questions asking whether transfer pricing policies have changed or whether significant business restructurings, or transfers of intellectual property have taken place, compared to the prior period. Organisations that identify weaknesses only after ICTS becomes mandatory may find themselves making changes that attract additional HMRC attention. 

A proactive review during 2026 allows businesses to: 

• Evaluate whether current transfer pricing policies remain appropriate. 

• Update benchmarking studies and supporting documentation where required. 

• Test whether the necessary financial data can be extracted from existing systems. 

• Identify governance gaps before live reporting begins. 

• Complete an ICTS dry run to understand the practical reporting requirements. 

Addressing these issues early provides time to make improvements before the first mandatory submissions. 

Transfer pricing models rarely stand still

Many businesses assume that because their transfer pricing policy has not formally changed, it remains appropriate. 

In reality, commercial operations evolve constantly. 

Changes to supply chains, inflation, refinancing activity, organisational restructures, acquisitions, geopolitical events and shifting business responsibilities can all affect the underlying transfer pricing analysis. 

Even where the overall policy remains appropriate, supporting documentation and economic analysis should be reviewed regularly to ensure they continue to reflect commercial reality. 

ICTS preparation is a cross-functional exercise

Preparing for ICTS is unlikely to be the responsibility of the tax team alone. 

Many of the required data points are owned across different functions, including Finance, Treasury, Legal and IT. Bringing these stakeholders together early will make future reporting significantly more efficient while helping ensure consistent governance across the organisation. 

Businesses should also consider how technology can support ongoing transfer pricing documentation, data collection and reporting as compliance requirements continue to evolve. 

Preparing now will reduce future compliance risk

ICTS represents a significant shift in UK transfer pricing compliance. Rather than simply asking whether businesses have transfer pricing documentation, HMRC will increasingly be assessing whether reported data, supporting evidence and commercial reality all align. 

Organisations that begin reviewing their transfer pricing models now will be better placed to reduce compliance risk, improve reporting efficiency and respond confidently to future HMRC enquiries. 

If your organisation would like to assess its ICTS readiness or review its transfer pricing governance, get in touch with the Alphatax team to discuss how we can support your compliance journey.