FCA Finalises Transaction Reporting Rules to Cut Firm Costs

The UK Financial Conduct Authority has finalised changes to the transaction reporting regime, saying the new rules will make reporting more proportionate while preserving the data it needs for market oversight.

The FCA said the changes will reduce the number of transaction reporting fields from 65 to 52, remove foreign exchange derivatives from reporting requirements, and remove reporting for 7 million instruments that are traded only on EU venues. The regulator said the package will reduce industry costs by more than GBP100 million a year.

Transaction reports remain central to how the FCA detects market abuse, monitors market functioning and supervises firms. The final rules are scheduled to take effect on 3 April 2028, although the FCA said firms that are ready earlier may be able to make some changes sooner under a flexible supervisory approach.

The regulator also said it will continue working with the Bank of England and Treasury on harmonising transaction and post-trade reporting rules.

Why it matters

Reporting costs feed into the operating model for brokers, trading venues, data providers and compliance teams. Removing duplicative or low-value fields may reduce operational burden, but firms still need accurate reporting controls because transaction data remains a core market abuse surveillance input.

For active traders, the impact is indirect but important: cleaner reporting rules can improve supervision of market conduct without forcing brokers to maintain unnecessary data pipelines.

What to watch next

Watch how firms sequence the 2028 implementation work and whether the FCA, Bank of England and Treasury produce further harmonised reporting changes across transaction and post-trade regimes.