The Financial Reporting Council (FRC) is overhauling how it oversees the Big Four accounting firms, shifting from intensive file-by-file inspections toward a more risk-based, systems-focused approach that begins next month.
The changes, announced Wednesday (25 March), reflect years of sustained improvements in audit quality at the largest firms and aim to make supervision more proportionate and effective in a maturing market.
Since ramping up scrutiny in 2018 following high-profile corporate failures, the FRC has driven notable progress. Recent inspection results show that five of the six Tier 1 firms – including the Big Four (Deloitte, EY, KPMG, and PwC) – achieved positive audit quality outcomes in 90% or more of reviewed audits, with some firms posting near-perfect scores in certain categories.
A shift from files to systems
Under the evolved model, which starts implementation for the largest firms in April 2026, the FRC will place Systems of Quality Management (SoQM) at the center of its supervision.
Instead of routinely deep-diving into dozens of individual audit files, regulators will conduct consistent risk-based assessments, backed by targeted follow-up work, thematic reviews, and selective corroboratory inspections where needed.
The goal is to focus regulatory firepower on higher-risk areas while giving firms more space to strengthen internal controls, culture, and leadership around quality.
This mirrors broader trends in regulation, including parallel moves in the US where firms anticipate lighter inspection regimes as oversight bodies rethink resource allocation after years of gains.
The FRC stressed that the changes do not mean lighter-touch regulation overall. Firms will still face accountability, but the emphasis moves toward building resilient systems that prevent problems upstream rather than catching them after the fact.
What it means for businesses
The move comes as the UK government pushes to reduce regulatory burdens on business to spur growth. The FRC’s announcement aligns with that agenda while insisting that investor protection and market trust remain paramount.
For FTSE 100 and 350 companies, banks, insurers, and other public interest entities (PIEs) that rely on Big Four audits, the implications are largely positive but nuanced.
With the regulator dialling back granular file inspections in lower-risk cases, audit teams may face less “defensive” documentation and second-guessing. This could translate into smoother audit processes, shorter timelines, and modestly lower fees over time, though Big Four partners caution that any cost savings will depend on how firms and clients adapt.
The FRC explicitly designed the new framework to strengthen audit quality, not dilute it. By emphasising firm-wide systems, regulators hope to foster consistent excellence rather than variable performance across individual engagements.
Businesses should still expect rigorous audits, particularly in complex areas like valuations, revenue recognition, and emerging risks such as climate disclosures or AI-related judgments.
Implementation will roll out gradually, with pilots and further refinements through 2026/27. The regulator is also coordinating supervision across PIE and non-PIE audits to create a more joined-up framework.
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