The Financial Conduct Authority (FCA) finalized rules on Monday that will cut the cost of UK transaction reporting by more than £100 million a year. Contracts for difference and spread bets are not part of the relief.
The regulator put the industry’s current annual reporting bill at £493 million and expects it to fall to roughly £385 million, a net saving of £108 million. The rules take effect on 3 April 2028.
Therese Chambers, the FCA’s Joint Executive Director of Enforcement and Market Oversight
“Transaction reports are the backbone of our market oversight work,” Therese Chambers, the FCA’s joint executive director of enforcement and market oversight, said in a statement.
What Leaves the Regime and What Stays
Foreign exchange derivatives come out of scope, which the FCA said affects more than 400 UK firms. Reporting obligations also disappear for 7 million instruments tradeable only on EU venues, worth about £32 million a year.
The number of reporting fields falls from 65 to 52. Firms will correct historical errors going back three years instead of five, which the FCA expects to cut resubmitted reports by a third.
CFDs and spread bets stay. In the consultation behind the final rules, the FCA wrote that because these products are leveraged they are “highly susceptible to market abuse,” and that its market integrity work relies on proactive surveillance of them.
The regulator pointed to June 2025 convictions of two individuals for insider dealing and money laundering. They used CFDs to profit from share price falls, and the FCA said it identified the activity from transaction reports.
Firms Pay Before They Save
The savings arrive after a bill. In its consultation the FCA estimated one-off costs to firms of £148.8 million, most of it IT work at investment firms, against £942.8 million of benefits over a ten-year appraisal period.
Reading the rules and running a gap analysis alone was costed at £40,000 for a large firm and £2,400 for a small one. The FCA put that population at 750 investment firms and 34 trading venues.
Firms do not have to wait until 2028. The FCA said a flexible supervisory approach applies from 3 August 2026, so firms that are ready can align with the new rules sooner.
Enforcement Has Not Loosened
Lighter obligations do not signal lighter supervision. The FCA fined Infinox Capital £99,200 in January 2025 over 46,053 unreported transactions, its first enforcement action under UK MiFIR.
In earlier follow-up work the regulator contacted more than 130 firms over suspected reporting errors and omissions.
In April the FCA and the Bank of England set up a joint taskforce on transaction and post-trade reporting, with working groups on policy, strategy and architecture running for an initial 18 months.
The Divergence Question Sits With the Firms
The FCA’s cost case assumes the European Union streamlines its own regime along similar lines. ESMA published a call for evidence on simplifying transaction reporting in June 2025, and its conclusions are not settled.
If the EU does not follow, firms running one reporting system across both jurisdictions would have to split their systems and reporting logic, according to consultation feedback the FCA published. Firms that already run separate UK and EU stacks told the regulator they could cope more comfortably.
The FCA also acknowledged a gap of its own. Removing FX derivatives leaves it with less visibility over firms that report under UK MiFIR but not UK EMIR, including 95 UK branches of third-country firms.
Draft schema and validation rules are due in October 2026.
The Financial Conduct Authority (FCA) finalized rules on Monday that will cut the cost of UK transaction reporting by more than £100 million a year. Contracts for difference and spread bets are not part of the relief.
The regulator put the industry’s current annual reporting bill at £493 million and expects it to fall to roughly £385 million, a net saving of £108 million. The rules take effect on 3 April 2028.
Therese Chambers, the FCA’s Joint Executive Director of Enforcement and Market Oversight
“Transaction reports are the backbone of our market oversight work,” Therese Chambers, the FCA’s joint executive director of enforcement and market oversight, said in a statement.
What Leaves the Regime and What Stays
Foreign exchange derivatives come out of scope, which the FCA said affects more than 400 UK firms. Reporting obligations also disappear for 7 million instruments tradeable only on EU venues, worth about £32 million a year.
The number of reporting fields falls from 65 to 52. Firms will correct historical errors going back three years instead of five, which the FCA expects to cut resubmitted reports by a third.
CFDs and spread bets stay. In the consultation behind the final rules, the FCA wrote that because these products are leveraged they are “highly susceptible to market abuse,” and that its market integrity work relies on proactive surveillance of them.
The regulator pointed to June 2025 convictions of two individuals for insider dealing and money laundering. They used CFDs to profit from share price falls, and the FCA said it identified the activity from transaction reports.
Firms Pay Before They Save
The savings arrive after a bill. In its consultation the FCA estimated one-off costs to firms of £148.8 million, most of it IT work at investment firms, against £942.8 million of benefits over a ten-year appraisal period.
Reading the rules and running a gap analysis alone was costed at £40,000 for a large firm and £2,400 for a small one. The FCA put that population at 750 investment firms and 34 trading venues.
Firms do not have to wait until 2028. The FCA said a flexible supervisory approach applies from 3 August 2026, so firms that are ready can align with the new rules sooner.
Enforcement Has Not Loosened
Lighter obligations do not signal lighter supervision. The FCA fined Infinox Capital £99,200 in January 2025 over 46,053 unreported transactions, its first enforcement action under UK MiFIR.
In earlier follow-up work the regulator contacted more than 130 firms over suspected reporting errors and omissions.
In April the FCA and the Bank of England set up a joint taskforce on transaction and post-trade reporting, with working groups on policy, strategy and architecture running for an initial 18 months.
The Divergence Question Sits With the Firms
The FCA’s cost case assumes the European Union streamlines its own regime along similar lines. ESMA published a call for evidence on simplifying transaction reporting in June 2025, and its conclusions are not settled.
If the EU does not follow, firms running one reporting system across both jurisdictions would have to split their systems and reporting logic, according to consultation feedback the FCA published. Firms that already run separate UK and EU stacks told the regulator they could cope more comfortably.
The FCA also acknowledged a gap of its own. Removing FX derivatives leaves it with less visibility over firms that report under UK MiFIR but not UK EMIR, including 95 UK branches of third-country firms.
Draft schema and validation rules are due in October 2026.
