ISDA, GFXD, UK Finance, LMA Respond to HMT on UK BMR Reform

Why It Matters

Limiting regulation to systemic‑risk benchmarks could lower compliance costs while sharpening supervisory focus, reshaping the UK’s post‑Brexit financial market landscape. The change also differentiates the UK from other jurisdictions that still apply broad benchmark rules.

Key Takeaways

• Associations back HMT's move to limit benchmark regulation
• New SABR will target systemic‑risk benchmarks only
• Clear criteria needed to prevent over‑designation
• FCA will draft firm‑facing rules after legislation
• UK currently regulates all benchmarks, unlike other jurisdictions

Pulse Analysis

The United Kingdom’s benchmark framework has long mirrored the EU’s Benchmark Regulation (BMR), a legacy of the pre‑Brexit alignment. Since the EU BMR was updated to take effect on 1 January 2026, the UK finds itself as the sole jurisdiction still imposing a blanket regime on every benchmark produced domestically. This broad scope has drawn criticism from market participants who argue that many low‑impact benchmarks are subject to disproportionate compliance burdens, prompting Treasury to consider a more risk‑based approach.

The proposed Specified Authorised Benchmarks Regime (SABR) seeks to narrow the regulator’s focus to benchmarks that could trigger systemic risk in UK financial markets. By designating only those benchmarks meeting explicit criteria, the regime promises to streamline oversight, reduce reporting overhead, and free resources for the FCA to concentrate on high‑impact instruments. However, industry groups caution that ambiguous criteria could lead to over‑designation, undermining the intended relief. Clear, objective thresholds are essential to ensure that only truly systemically important benchmarks fall under the new regime.

For banks, asset managers, and other benchmark users, the shift signals a potential reduction in operational costs and regulatory complexity, but also a period of transition as the FCA prepares detailed firm‑facing rules. The consultation timeline remains open, and stakeholders will need to monitor forthcoming FCA guidance closely. Ultimately, the reform could reinforce the UK’s reputation for a proportionate, market‑focused regulatory environment, attracting firms seeking a more predictable benchmark landscape post‑Brexit.