REMIT II Becomes Operational on 29 April: What Market Participants Need to Know Now

On April 9, 2026, the European Commission published the Implementing Regulation and Delegated Act under REMIT II. From tomorrow, April 29, 2026, these regulations come into force, marking the point at which REMIT II becomes operational in practice.

Market participants are no longer preparing for REMIT II - they must now operate within its defined timelines and obligations. Crucially, these regulations do not only introduce immediate changes, they define the timeline and structure for all subsequent REMIT II obligations through to 2029.

From Framework to Implementation

Since its adoption in 2024, REMIT II has set out an expanded scope for market transparency, including new reporting requirements and enhanced oversight. However, many of the operational details remained undefined.

The April 2026 publications address this gap. They provide clarity on what must be reported, when, and under which conditions, turning REMIT II into a fully defined implementation roadmap.

Why This Moment Matters

The entry into force of the Implementing Regulation and Delegated Act represents the first substantive operational shift for market participants.

From this point:

- Updated reporting timelines apply
- System and process changes must be implemented
- Preparation transitions into execution.

While additional phases of REMIT II implementation remain, this is the point at which compliance becomes active rather than preparatory.

Immediate Impact: Reporting Timelines

One of the most immediate changes concerns reporting deadlines:

- Standard contracts (traded on organised marketplaces): T+2
- Non-standard contracts (bilateral / off-market): T+10.

Although this may initially be interpreted as a tightening of requirements, the impact is more nuanced.

Under the clarified definitions:

- Standard contracts are those traded on organised marketplaces
- Non-standard contracts are those traded off-market.

As a result, many contracts previously classified as “standard” now fall under the T+10 reporting window, introducing greater flexibility for certain bilateral transactions. At the same time, this shift creates new challenges in contract classification and reporting consistency.

The narrative of uniformly stricter deadlines does not fully reflect the operational reality.

Defining the Road Ahead

Beyond immediate changes, the April 2026 regulations establish the timeline and structure for a broader set of obligations, including:

- Exposure reporting from 2027
- New reporting schemas from October 2027
- RRM and IIP authorisation by 2028
- Hydrogen reporting from 2028.

Together, these changes represent a significant increase in data volume, complexity, and reporting frequency.

The Real Challenge: Data Alignment

While much of the focus is on reporting obligations, the real challenge lies in data consistency.

As reporting requirements expand, so do:

- the number of data points
- the frequency of reporting
- the interdependency between datasets.

This creates a growing risk:

     | Discrepancies between trade, invoice, and settlement data become harder to detect, and more costly to resolve. 

Compliance is no longer just about reporting data.

It is about ensuring that data is aligned across the post-trade lifecycle.

What This Means for Market Participants

With the regulations now in force, organisations must move from planning to execution. Key priorities include:

- Adapting systems to updated reporting timelines
- Reassessing contract classification under the new definitions
- Preparing for upcoming reporting obligations and data requirements.

Delaying these steps risks compressing multiple regulatory changes into a shorter timeframe, increasing both operational pressure and compliance risk.

Conclusion

The publication of the Implementing Regulation and Delegated Act marks a defining moment in the evolution of REMIT II. This is not just the start of implementation, it is the point at which the full regulatory timeline becomes clear.

The focus now shifts from understanding the regulation to ensuring that processes, systems, and data are aligned to meet its requirements.

Want to understand how these changes impact your post-trade processes? Get in touch with our team to learn more.