The Big Four auditors earn 98% of audit fees for the largest UK companies while clients face soaring costs with prices up 27% in a single year
While 13% of FTSE 350 audits are carried out by mid-tier and challenger audit firms, these account for only 2% of total audit fees at £28m.
The total accumulative audit fees for the FTSE 350 was £1.4bn in 2023, but 98% of these fees were earned by the Big Four of PwC, Deloitte, EY and KPMG. They continue to dominate audit with an 87% market share.
Mid-tiers have only grown their share of audit business by 2% in the previous year from 11% in 2022. BDO and Forvis Mazars earned just over 4% of total listed audit fees each, while the remaining 2% was split between the remaining firms, showed analysis from the Financial Reporting Council (FRC).
PwC pipped Deloitte to the top spot in terms of audit earnings, accounting for 27% and 26% respectively of total FTSE 350 audit fees. BothEY at 19% and KPMG at 18% lost ground in terms of market share.
Meantime, companies are paying significantly higher costs for their audits as total fees earned by audit firms hit £1.4bn in 2023, up a staggering 27% from £1.1bn in 2022.
The FRC acknowledged growing concerns from companies about rising audit fees, stressing that some of the reasons for the recent hike in fees was down to ‘significant changes to IFRS accounting standards which created more work for auditors’ in the latest audits. It also pointed to growing costs for audit firms from wage inflation and investment in technology.
However, client companies are also responding to the hike in audit fees with a number of FTSE and AIM listed businesses swapping auditors, citing rising costs as a key factor.
There was a pickup in the number of audit tenders with 23 FTSE 350 companies changing auditor in the last year, but 94% merely swapped their Big Four auditor. Only three audits switched from one of the Big Four to a mid-tier firm. In 2022, there were fewer tenders than in previous years with only 17 audits changing hands.
The fact that just over one in 10 audits were handled by smaller firms highlights the glacial progress towards a more competitive market, despite efforts by the audit regulator to address stakeholder concerns such as differences in quality between the largest and smaller audit firms.
The FRC said its approach focuses on ‘ensuring good quality audit services are accessible to UK companies of all sizes’ and is using an audit firm ‘Scalebox’ to help smaller audit firms expand their audit share while developing and maintaining audit quality at the same time.
In terms of wider efforts to increase competition, the FRC stressed: ‘The primary aim of our competition policy is not about growing another firm so it can rival the Big Four. Growing a firm to rival the Big Four would be very difficult to do.
‘Forming an audit firm with a size, by PIE audit fee income, the same as the smallest of the Big Four – EY – is the equivalent of combining the next eight largest audit firms.
However, there is little indication that the audit market will change any time soon, with the audit regulator being very cautious about prospects for the future.
‘The existing issues are deep-seated and the market structure is heavily entrenched. It will take time – perhaps some considerable time – to realise a well-functioning audit market,’ the FRC warned.
In 2023, the challenger firms with the largest growth in audit income were BDO, RSM and Forvis Mazars, with an average increase of 22%. Grant Thornton had the lowest growth, with a 15% increase on the previous year, although the firm has to build up its listed audits after withdrawing from the market a few years ago and not re-entered the listed market until recently.
Richard Moriarty, CEO of the FRC, said: ‘Whilst the Big Four continue to dominate the market for the audits of the largest UK businesses, in the last 12 months other audit firms have successfully grown their businesses and they are now taking on more complex audits.
‘This report underscores our commitment to ensuring the whole market works as effectively as it can.’
Writes Sara White in Busienss Accountancy Daily