Best Accountants in Westminster, London

Accountants in Westminster help sole traders, landlords, limited companies and individuals with tax returns, bookkeeping, payroll and business advice. Below you will find our selection of 5 accountants in Westminster, with address, phone number, website and opening hours for each one, followed by practical advice on choosing the right accountant, typical prices and answers to common questions.

5listed
4with phone number
3with website
1open on Sundays

5 Accountants in Westminster

5SG and Co

Address
136 Baker Street, London
Directions

How to choose an accountant in Westminster

  • Check membership of a professional body such as ICAEW, ACCA, CIMA or AAT.
  • Ask for a fixed monthly or annual fee and what it includes.
  • Make sure they support Making Tax Digital software.
  • Look for sector experience, for example property, construction or creative businesses.

Checks and regulation: Accountants handling money laundering-regulated work must be supervised by a professional body or HMRC.

How much does an accountant cost in Westminster?

A self-assessment tax return typically costs £200–£500; annual accounts for a small limited company £900–£2,500. Prices vary by area, time of day and the complexity of the job or service, so always ask for a written quote or check the latest price list before you book.

Accountants across Westminster

Westminster covers neighbourhoods such as Mayfair, Soho, Marylebone, Covent Garden, Pimlico, Belgravia, St James's, Paddington (postcodes W1, W2, W9, NW8, SW1, WC2). The accountants listed on this page are located in or around W1B, WC2R, W1U. Getting around is easy thanks to almost every Tube line, the Elizabeth line, and mainline stations at Victoria, Paddington, Charing Cross and Marylebone. If you live close to the borough boundary, it is worth comparing options in neighbouring boroughs too.

Accountants in nearby boroughs

Frequently asked questions

When is the self-assessment deadline?

Online returns and payment are due by 31 January following the end of the tax year on 5 April.

Do I need an accountant for my limited company?

It is not a legal requirement, but most directors use one to prepare statutory accounts and corporation tax returns.

What is Making Tax Digital?

HMRC's programme requiring digital records and quarterly updates; it applies to sole traders and landlords with income over £50,000 from April 2026.

Listings are compiled from public business information and OpenStreetMap (© OpenStreetMap contributors, ODbL). Details can change, so please confirm opening hours and prices with the business before visiting. Businesses can request corrections via our contact page. Last reviewed: September 2026.