How much does an audit cost in the UK?

Median UK audit fee £15,000, from 31,677 fees filed with Companies House: £11,350 at £1–5m revenue, £15,750 at £10–25m, £28,730 at £100m+. Fees by revenue band, auditor tier and sector.

Median UK audit fee by revenue band

Median with interquartile range

Revenue band	Companies	p25	Median	p75	p95	Median fee % of revenue
Under £1m	6,622	£6,000	£12,500	£22,500	£48,986	—
£1–5m	2,495	£7,000	£11,350	£18,000	£42,714	0.44%
£5–10m	2,580	£9,439	£14,500	£21,500	£43,269	0.19%
£10–25m	8,129	£10,500	£15,750	£23,400	£43,655	0.10%
£25–50m	3,183	£12,700	£19,500	£30,000	£55,000	0.06%
£50–100m	1,274	£13,250	£22,308	£36,000	£77,989	0.03%
£100m+	551	£15,710	£28,730	£50,202	£105,650	0.02%

By auditor tier

Median UK audit fee by auditor tier and revenue band

Big 4Challenger firmsIndependent firms

By sector

Sectors with 150 or more fees on file. Fee as a share of revenue is the median across companies with £1m or more of revenue.

Sector	Companies	With a fee	Median fee	Fee % of revenue
Activities of other holding companies n.e.c.	15,219	3,433	£14,490	0.09%
Other business support service activities n.e.c.	10,696	1,663	£14,170	0.13%
Activities of head offices	8,425	1,445	£15,000	0.1%
Other letting and operating of own or leased real estate	6,010	516	£8,376	0.14%
Development of building projects	4,601	596	£10,500	0.08%
Financial intermediation not elsewhere classified	3,591	427	£12,800	0.26%
Buying and selling of own real estate	3,159	268	£9,000	0.12%
Other service activities n.e.c.	2,994	471	£14,192	0.12%
Production of electricity	2,900	195	£6,500	0.23%
Hotels and similar accommodation	2,394	508	£12,500	0.21%
Business and domestic software development	2,320	352	£18,000	0.17%
Other information technology service activities	2,260	369	£17,500	0.15%
Other professional, scientific and technical activities n.e.c.	2,012	245	£15,000	0.18%
Management consultancy activities other than financial management	1,772	320	£15,000	0.11%
Activities of financial services holding companies	1,657	172	£12,500	0.17%
Other human health activities	1,632	274	£11,835	0.12%
Information technology consultancy activities	1,602	275	£18,900	0.12%
Other manufacturing n.e.c.	1,530	435	£17,000	0.12%
Other specialised construction activities n.e.c.	1,259	384	£15,338	0.08%
Non-specialised wholesale trade	1,216	366	£17,295	0.1%
Freight transport by road	1,089	416	£13,750	0.08%
Construction of commercial buildings	1,049	337	£16,200	0.08%
Residential nursing care facilities	939	268	£9,716	0.15%
Residential care activities for the elderly and disabled	877	192	£10,000	0.18%
Other activities of employment placement agencies	755	179	£17,728	0.09%
Sale of new cars and light motor vehicles	712	251	£16,100	0.04%
Manufacture of other fabricated metal products n.e.c.	617	200	£16,875	0.11%
Motion picture production activities	604	193	£16,000	0.19%
Retail sale via mail order houses or via Internet	584	155	£16,830	0.09%
Activities of construction holding companies	578	206	£15,650	0.07%
Manufacture of other plastic products	571	162	£15,875	0.11%
Temporary employment agency activities	571	152	£16,000	0.07%
Electrical installation	531	199	£15,000	0.08%
Construction of other civil engineering projects n.e.c.	510	185	£17,655	0.08%
Non-trading company non trading	290	237	£9,570	0.08%

Questions people ask

How much does a statutory audit cost for a small UK company?

For companies with £1–5m of revenue the median fee is £11,350, with half of fees between £7,000 and £18,000.

How much does an audit cost for a £10m to £25m company?

The median is £15,750; the interquartile range is £10,500 to £23,400. As a share of revenue that is about 0.10%.

Do the Big 4 charge more?

Yes, size for size. Big 4 £45,000, challenger firms £18,900, independent firms £14,725 at £10–25m of revenue.

Figures are indicative. They are computed from a sample of accounts filed with Companies House and the Norwegian register, read by machine, and are only as good as those filings; they can contain mistakes, and the dataset is not exhaustive. Found a mistake? Report it through the contact form.