The Financial Conduct Authority (FCA) has removed foreign exchange derivatives entirely from the UK MiFIR transaction reporting regime and cut the reportable field set from 65 to 52, with the new rules taking effect on 3 April 2028 — a simplification the European Union will not match until the 2030s.

Policy Statement PS26/15, published on 3 August 2026, restates and replaces the assimilated EU law derived from the UK Markets in Financial Instruments Regulation (UK MiFIR) and moves the firm-facing obligations into the FCA Handbook at MAR 14. The FCA estimates firms spend £493 million a year on UK MiFIR transaction reporting alone and expects the package to cut that by more than £100 million annually. This analysis covers what leaves scope, how the UK now diverges from the EU, United States, Australia and Singapore, why two 2019 enforcement actions make over-reporting a live risk, and what compliance teams must document before the implementation window closes.

Key facts

• Effective date: 3 April 2028, following an 18-month implementation period that begins when the FCA publishes draft schema and validation rules in October 2026 (PS26/15, paragraph 1.19).
• Field reduction: 65 reportable fields cut to 52 (PS26/15, paragraph 1.8).
• FX derivatives: currency options, futures, swaps and forward rate agreements leave scope entirely, “reducing costs for over 400 UK firms”. Cryptoasset derivatives are expressly not covered by the carve-out (PS26/15, paragraph 3.14 response).
• Geographic narrowing: reporting obligations removed for 7 million instruments tradeable only on EU trading venues, worth about £31.5 million a year in savings (PS26/15, paragraphs 1.8 and 3.1).
• Back reporting: the default correction period drops from five years to three, cutting resubmitted reports by roughly one third (PS26/15, paragraph 1.8).
• Cost benefit analysis: £115.3 million in annual ongoing savings; net present value of benefits exceeds costs by approximately £745.5 million over 10 years (PS26/15, Annex 2).
• EU comparison: PS26/15 finalises CP25/32; ESMA’s Final Report of 2 July 2026 targets a “report once” model for the second half of 2031.

Methodology and sources

This analysis rests on primary regulator documents published between March 2019 and August 2026. The core source is the FCA’s Policy Statement PS26/15 (PDF), read in full including Annex 2 (cost benefit analysis) and the draft MAR 14 instrument text. The EU comparison uses the European Securities and Markets Authority (ESMA) Final Report press release of 2 July 2026. The US position is taken from 17 CFR Part 45; Australia from Australian Securities and Investments Commission (ASIC) Regulatory Guide 251 (PDF); and Singapore from the Monetary Authority of Singapore (MAS) guidelines SFA 06A-G01. Enforcement figures come from FCA press releases of March 2019. Jurisdictional scope is limited to the UK, EU, US, Australia and Singapore; quotes are reproduced verbatim from named-author published sources.

What PS26/15 actually removes from scope

The FCA is doing three separable things: narrowing what must be reported, cutting what each report must contain, and shortening how far back errors must be corrected. The scope narrowing carries the immediate commercial value for foreign exchange businesses.

The FCA’s stated rationale for the FX carve-out is duplication rather than deregulation: transaction reports for FX derivatives are “partially duplicative of data we receive under UK EMIR”, and the FCA considers UK European Market Infrastructure Regulation (EMIR) data “a more appropriate and reliable source of information for monitoring FX derivative markets” (PS26/15, paragraph 3.9). Every respondent to CP25/32 supported it. Critically, the relief is available now rather than in 2028: the FCA states it “will not take supervisory action against firms that do not submit transaction reports for FX derivatives during the implementation period (from 3 August 2026 until the new rules come into force on and including 3 April 2028), provided these firms submit UK EMIR data for the same transactions.”

The geographic narrowing works differently. UK MiFIR reporting will apply only to instruments tradeable on UK trading venues, with the FCA Financial Instruments Reference Data System (FIRDS) confirmed as the “golden source” for eligibility. That removes roughly 7 million EU-venue-only instruments from the determination logic — but not the logic itself. Firms still need a daily eligibility process; they simply point it at one register instead of two.

The UK MiFIR FX derivatives carve-out is a duplication fix, not a supervisory retreat. From 3 April 2028, options, futures, swaps, forward rate agreements and any other derivative contract relating to currencies that may be settled physically or in cash fall outside UK MiFIR transaction reporting entirely, and the FCA will instead monitor those markets through UK EMIR trade repository data. The carve-out reaches over 400 UK firms according to PS26/15, paragraph 1.8. It expressly does not extend to derivative contracts relating to cryptoassets, which remain reportable. It also creates an acknowledged data gap: UK branches of third-country firms are not currently required to report under UK EMIR, and the FCA has deferred that problem to its work repealing and replacing the over-the-counter derivatives reporting requirements in Title II of UK EMIR rather than solving it in PS26/15.

How five reporting regimes now compare

Jurisdiction / Regulator	Effective date	Scope for FX derivatives	Key requirement	Penalty / sanction
UK (FCA)	3 April 2028 (relief from 3 August 2026)	Out of scope for UK MiFIR; captured by UK EMIR instead	PS26/15, restated into Handbook MAR 14; 52 fields; FCA FIRDS as golden source	FCA Final Notices under s.206 FSMA — £34,344,700 (Goldman Sachs International, 2019)
EU (ESMA and national competent authorities)	RTS 22 revision in train; “report once” targeted for H2 2031	In scope; Article 26(2) MiFIR extends reporting to OTC derivatives subject to Article 8a(2) transparency	Article 26 MiFIR plus RTS 22; ESMA Final Report of 2 July 2026 estimates €250 million–€1 billion annual net savings if adopted	Set nationally under Article 70 MiFID II; administrative fines up to 10% of annual turnover for legal persons
US (CFTC)	Parts 43 and 45 as amended; FX reporting live since 28 February 2013	In scope; Treasury-exempt physically settled FX forwards and swaps remain subject to swap data repository reporting	17 CFR Part 45 recordkeeping and reporting; 17 CFR Part 43 real-time public dissemination	CEA s.6(c) civil monetary penalties, assessed per violation per day
Australia (ASIC)	ASIC Derivative Transaction Rules (Reporting) 2024, commenced 21 October 2024	In scope; lifecycle reporting extended to all product types, previously only equity derivatives, CFDs and margin FX	ISO 20022 messaging, UTI and UPI; Regulatory Guide 251	Civil penalty under s.901E Corporations Act 2001; s.1317G caps body corporate exposure at the greater of 3× benefit, 10% of annual turnover, or 2.5 million penalty units
Singapore (MAS)	Revised requirements from 21 October 2024	In scope; FX swaps reported as two linked contracts via the “FX swap link ID” field	Securities and Futures (Reporting of Derivatives Contracts) Regulations 2013; fields cut from 162 to 136	Offence under the Securities and Futures Act 2001; MAS composition and prosecution powers apply

Sources: FCA PS26/15; ESMA Final Report ESMA71-545613100-2958; 17 CFR Parts 43 and 45; ASIC RG 251 and the ASIC Derivative Transaction Rules (Reporting) 2024; MAS SFA 06A-G01. Last updated: 16 August 2026.

The divergence is one of timing as much as substance. ESMA reached broadly the same diagnosis the FCA did — that MiFIR, EMIR and the Securities Financing Transactions Regulation (SFTR) have grown in silos and now duplicate one another — and its Final Report of 2 July 2026 recommends a “report once” architecture worth an estimated €250 million to €1 billion a year, cutting recurring reporting costs by roughly 22 to 24 per cent. But ESMA’s roadmap puts the integrated framework in the second half of 2031. The FCA’s package binds in April 2028, and the FX relief is available now.

The FCA noticed the gap. PS26/15 records that several respondents asked for an additional principle of international alignment, and answers: “we will pursue changes where we consider the benefits to UK market integrity, growth and data quality outweigh the costs of divergence.” That follows the pattern of the FCA’s decision to write UK crypto rules that refuse to copy MiCA and its relocation of MiFID equity transparency into MAR 11A. Restating assimilated EU law into the Handbook is not cosmetic: once a requirement sits in FCA rules rather than retained regulation, the FCA can amend it on its own cycle.

Regulatory arbitrage is not the practical risk here — parallel infrastructure is. A UK-only asset manager can decommission its FX transaction reporting pipeline in 2026 and bank the saving. A firm operating across London, Frankfurt, Chicago and Sydney cannot, because the same FX forward that leaves UK MiFIR scope on 3 April 2028 remains reportable under EU MiFIR Article 26, under 17 CFR Part 45 to a swap data repository, and under the ASIC Derivative Transaction Rules (Reporting) 2024. What changes for those firms is not the volume of reporting logic but its asymmetry: eligibility rules once broadly aligned across MiFIR implementations now differ by jurisdiction, and the reconciliation controls that detect a broken feed must be re-specified per regime. Simplification for the venue is not simplification for the multi-jurisdictional member.

“Currency options, futures, swaps, forward rate agreements and any other derivative contracts relating to currencies which may be settled physically or in cash will be removed from the scope of transaction reporting, with the FCA relying on UK European Market Infrastructure Regulation (EMIR) data instead.”

— Christopher Collins, Carolyn H. Jackson, Nathaniel W. Lalone and Neil Robson, financial markets lawyers, Katten (National Law Review)

Enforcement context: over-reporting is a breach too

The two largest UK transaction reporting penalties on record are the reason firms should treat de-scoping as a control change rather than a switch-off. On 19 March 2019 the FCA fined UBS AG £27,599,400 for failings across 135.8 million transaction reports covering November 2007 to May 2017. The composition matters: about 86.67 million reportable transactions were incomplete or inaccurate, and 49.1 million were erroneously reported when they were not reportable at all. The pre-discount penalty was £39,427,795, cut by 30 per cent for early resolution.

Nine days later, on 28 March 2019, the FCA fined Goldman Sachs International £34,344,700 over 220.2 million reports covering November 2007 to March 2017, of which roughly 213.6 million were incomplete, inaccurate or late and 6.6 million concerned transactions that were not reportable. The pre-discount figure was £49,063,900. Mark Steward, then FCA executive director of enforcement and market oversight, said the case showed “a failure over an extended period to manage and test controls that are vitally important to the integrity of our markets.”

Both cases were brought under the Markets in Financial Instruments Directive (MiFID) regime that ran from 5 November 2007 to 2 January 2018, so the specific rules have since been replaced. The principle survives: the FCA has fined firms tens of millions of pounds for submitting reports it did not want. From 3 April 2028, an FX derivative report is exactly that. Firms that leave an FX feed running past the effective date are not in a safe-harbour position; they are populating market abuse surveillance data with records the rules no longer contemplate. Firms that switch the feed off early must evidence that they submit UK EMIR data for the same transactions, because that is the express condition attached to the FCA’s forbearance.

What this means for brokers, venues, ARMs and compliance teams

Retail and institutional FX brokers. The immediate action is a scope determination. If a firm reports the same FX derivatives under UK EMIR, it can stop UK MiFIR reporting for those products now and document the reliance on paragraph 3.14 of PS26/15. If it does not report under UK EMIR — and UK branches of third-country firms generally do not — the obligation continues unchanged through the implementation period. That distinction, not the product, decides eligibility. Firms holding permissions across several regimes should read this alongside what an FX licence actually buys in each jurisdiction, because the reporting perimeter and the authorisation perimeter no longer move together.

Trading venues and approved reporting mechanisms (ARMs). Venues will populate fewer fields, which the FCA says simplifies submissions from over 2,200 international firms accessing UK markets. ARMs face the harder problem: supporting the 65-field legacy schema and the 52-field target schema simultaneously while individual clients adopt relief at different times. Contractual allocation of responsibility for a mis-scoped report should be revisited before the October 2026 schema consultation, not after.

Buy-side firms and fund managers. Conditional Single-Sided Reporting (CSSR) is the change with the most contested cost-benefit profile, and it is where documentation risk concentrates. The FCA is proceeding despite the fact that, in its own words, “most respondents viewed the proposed CSSR model as unworkable and unlikely to achieve meaningful simplification.” Only 138 firms acted as a receiving firm in 2025, down from 164 in 2024. Any firm intending to rely on CSSR needs a data-sharing agreement, a reconciliation process, and a contractual position on back-reporting liability if the sending firm’s data is wrong.

Legal and compliance teams. Three dated deliverables sit inside the next 20 months: an FX scope decision with its evidence file, a response to the October 2026 schema and validation rules consultation, and a rewrite of the compliance monitoring programme to reflect a three-year rather than five-year back-reporting window. The identifier problem persists — there are nearly 12 million active OTC ISINs in FCA FIRDS, 66 per cent of all active instruments on the system, and PS26/15 retains the OTC ISIN rather than moving to the ISO 4914 Unique Product Identifier.

“Field and instrument eligibility reductions lower data volume, but not the need to maintain sophisticated reporting logic, exception management processes, governance, and monitoring arrangements. What is certain is that transaction reporting will continue to sit at the heart of the FCA’s market abuse surveillance framework, and expectations around data quality and control will not diminish.”

— Charlotte Longman, regulatory reporting specialist, ACA Group (ACA Group)

What’s next — the forward view

Three workstreams determine whether the £100 million-plus saving is realised. The first is technical: the FCA publishes draft schema, validation rules and guidelines for consultation in October 2026, and the 18-month implementation clock effectively runs from that publication. Firms that have not modelled the 52-field target state by then will compress testing into 2027.

The second is the Transaction and Post-trade Reporting Industry Harmonisation Taskforce, established jointly with the Bank of England, which held its inaugural meeting in July 2026. It runs three working groups — Policy, Strategy and Architecture — and the FCA has committed to publishing minutes. Its remit is the convergence of UK MiFIR, UK EMIR and SFTR around three stated principles: data should only be collected where needed, a firm should only report data once, and data should be shared where appropriate.

The third is legislative: the FCA, HM Treasury and the Bank of England intend to repeal and replace the OTC derivatives reporting requirements in Title II of UK EMIR. That is where the data gap for UK branches of third-country firms is scheduled to be resolved, since respondents did not support simply extending UK EMIR to those branches.

Two contested items are worth watching. CSSR proceeds against majority industry opposition, and take-up is measurable — if the receiving-firm population does not rise above the 138 recorded in 2025, the framework will have failed on its own terms. On the EU side, the question is whether ESMA’s “report once” model survives the legislative process intact, since further slippage past 2031 would widen the gap. The same dynamic is visible in operational resilience, where DORA’s third-party oversight regime already splits EU, UK and US rules, and in the UK’s October 2027 cryptoasset gateway.

Frequently asked questions

When do the new UK transaction reporting rules take effect?

The new regime comes into force on 3 April 2028. The FCA will publish draft schema, validation rules and guidelines for consultation in October 2026, starting an 18-month implementation period. Separately, the FCA is applying a flexible supervisory approach from 3 August 2026 in certain areas, so firms that are ready can benefit from some changes — most notably the FX derivatives relief — before the formal effective date.

Can a firm stop reporting FX derivatives now?

Only on one condition. The FCA has stated it will not take supervisory action against firms that stop submitting UK MiFIR transaction reports for FX derivatives between 3 August 2026 and 3 April 2028, provided those firms submit UK EMIR data for the same transactions. Firms that do not report under UK EMIR — including UK branches of third-country firms — must continue to meet the existing requirements throughout the implementation period.

Does the FX carve-out cover cryptoasset derivatives?

No. PS26/15 states the change applies to options, futures, swaps, forward rate agreements and other derivative contracts relating to currencies that may be settled physically or in cash, and expressly says it does not apply to derivative contracts relating to cryptoassets. Cryptoasset derivatives remain within UK MiFIR transaction reporting scope, and firms should not read the currency carve-out across to digital asset products.

How does the UK regime now differ from the EU?

Substantively, the UK removes FX derivatives from MiFIR reporting while EU MiFIR retains them, and Article 26(2) extends EU reporting to OTC derivatives subject to Article 8a(2) transparency. Procedurally, the timing gap is larger than the rule gap: the UK package binds in April 2028, whereas ESMA’s Final Report of 2 July 2026 targets a fully integrated “report once” framework for the second half of 2031.

What is Conditional Single-Sided Reporting?

CSSR replaces the existing transmission arrangements under Article 4 of RTS 22, allowing a receiving firm to submit a transaction report incorporating details provided by a sending firm. PS26/15 reduces the information points a sending firm must provide from 10 to four and extends availability to DEAL and MTCH trading capacities. Most consultation respondents considered the model unworkable; the FCA is proceeding regardless. Only 138 firms acted as receiving firms in 2025.

Is transaction reporting enforcement still a live risk?

Yes. The FCA fined UBS AG £27,599,400 in March 2019 and Goldman Sachs International £34,344,700 later the same month for transaction reporting failures spanning roughly a decade. Both cases included penalties for reporting transactions that were not reportable — 49.1 million in the UBS case. Over-reporting is a breach, which is why firms need a documented decommissioning plan rather than a dormant FX feed after April 2028.

This article is informational analysis only and does not constitute legal, regulatory, tax, or investment advice. Regulatory frameworks change frequently and interpretation depends on facts and circumstances; primary documents and official regulator guidance always supersede summaries. Firms should consult qualified legal counsel and their relevant supervisory authority before taking any action based on the analysis above.