Accountants in London
London has 6,346 accountancy firms on record, including 3,033 supervised for anti-money-laundering and 1,932 with professional-body membership. Because "accountant" is not a protected title in the UK, anyone can use it - so every listing here is cross-checked against Companies House, the HMRC anti-money-laundering register and the professional bodies, with the source and date shown on each claim. When you compare London firms, look past price to two things on the public record: that the firm is supervised for anti-money-laundering (a legal requirement) and, ideally, that it belongs to a body such as ICAEW, ACCA or AAT. Both are shown on every profile below.
- Since 1917longest established
- 6,082accounts filed on time
- 3,964Accounting & audit
- 2,405Bookkeeping
- 1,620Tax advice
How much do London accountants charge? →
237 Xero-certified accountants in London →
35 QuickBooks-certified accountants in London →
Payroll accountants across London →
Accountants in London: quick answers
What do accountants charge in London?
Typical UK fees apply in London: GBP 150-400 for a sole trader Self Assessment return, GBP 750-2,000 a year for limited company accounts and Corporation Tax, and small-business monthly packages from around GBP 100. Full London cost guide →
How established are London's accountancy firms?
The average incorporated firm in London has been on the Companies House register for about 9 years; the longest-standing was incorporated in 1917.
How many new accountancy firms opened in London in the last year?
565 new accountancy firms were incorporated in London in the last 12 months, per Companies House.
Why do some London accountants share the same address?
1,932 London firms are registered at a shared or serviced-office address - common with virtual offices and formation agents. Our shared-address directory shows which firms sit at each building. Browse shared registered addresses →
What accountants in London charge
- Self Assessment tax returnGBP 150-400 one-off
- Limited company accounts + Corporation TaxGBP 750-2,000 per year
- Small business monthly packageGBP 100-300 per month
Indicative UK ranges, compiled July 2026; a London quote varies with complexity and how organised your records are. Full London cost guide →
How to choose an accountant in London
- Confirm AML supervision. Every UK accountant must be supervised for anti-money-laundering, by HMRC or a professional body. It is a legal requirement and the first thing to check.
- Look for a professional body. Membership of ICAEW, ACCA or AAT means real qualifications and a complaints route; the title "accountant" on its own is not protected.
- Compare fixed-fee quotes. Most London firms quote a fixed fee per service, so get two or three and compare like for like rather than hourly rates.
- Watch the red flags. No AML registration, no engagement letter, vague pricing or any pressure to under-declare are all reasons to walk away.
Shared registered-address hubs in London
Our sources
Every listing is drawn from public records and re-checked as they update. Primary sources:
- Companies House register (opens in new tab) - identity, incorporation and filing history.
- HMRC anti-money-laundering register (opens in new tab) - supervised-business status.
- ICAEW, ACCA and AAT membership registers - professional-body standing.