Fixed-Fee Small Business Accountants With Offices Across London
GM Professional Accountants is a firm of small business accountants in London looking after sole traders, limited companies, landlords and growing SMEs from our offices in Old Street, Wimbledon, Ilford and Loughton. Fixed monthly fees start from £70 + VAT per month, and our clients rate us 5.0 out of 5 from 59 Google reviews.
We handle bookkeeping, VAT, payroll, year end accounts, Corporation Tax and Self Assessment, and keep you compliant with HMRC and Companies House, including Making Tax Digital. Every client has a named accountant, and every return is reviewed by a second qualified team member before it is filed, so your accounts never depend on one person.
Whether you are a sole trader moving into Making Tax Digital, a limited company director filing annual accounts, or a landlord running an SPV, you get a fixed scope, a fixed fee and a team that answers when you call.
Why London Small Businesses Choose GMPA
Every Return Checked Twice
Our four-eye review means a second qualified team member checks your accounts and returns before anything goes to HMRC or Companies House.
A Named Accountant, No Single Point of Failure
You always know who looks after you, and our documented processes mean holidays or staff changes never hold up your filings.
Fixed Fees From £70 + VAT
Agreed in writing before we start, based on your turnover, transactions, VAT and payroll. No surprise invoices.
Four Offices, Clients Nationwide
Meet us in Old Street, Wimbledon, Ilford or Loughton, or work with us fully online from anywhere in the UK or overseas.
Small Business Accountant Fees in London
From £70 + VAT per month
Our small business accounting packages are fixed monthly fees. The starting price covers a small business with straightforward records, and your exact fee depends on:
- Your business type: sole trader, partnership or limited company
- Annual turnover and the number of bank transactions
- Whether you are VAT registered
- How many people are on your payroll
- Whether you need monthly bookkeeping or management accounts
After a free consultation we send a fixed written quote, so you know the full cost before you commit.
Get Your Fixed QuoteOur Small Business Accounting Services
Bookkeeping
Cloud based bookkeeping in Xero, QuickBooks or FreeAgent with monthly reconciliations and management reports.
VAT Returns
VAT registration, scheme advice (flat rate, standard, margin) and Making Tax Digital compliant submissions.
Payroll & Auto Enrolment
RTI payroll, payslips, P60s, P11Ds and pension auto enrolment for directors and staff.
Year End Accounts
Statutory accounts prepared in iXBRL and filed at Companies House on time, every time.
Corporation Tax
CT600 preparation, capital allowance claims, R&D relief and tax efficient profit extraction planning.
Self Assessment
Director and sole trader tax returns including dividend, rental and CGT computations.
Business Advisory
Cash flow forecasting, KPI tracking, funding readiness and quarterly strategy reviews.
MTD Compliance
Full Making Tax Digital onboarding so your records and quarterly submissions meet HMRC rules.
Sector Specialists for London Businesses
General small business accounting is only half the job. We know the rules, reliefs and deadlines that matter in the sectors we work in most.
Construction & CIS
CIS returns, subcontractor verification, CIS refunds and the domestic reverse charge for VAT.
Property & Landlords
Buy to let, HMOs and SPV limited companies, including rental accounts and Corporation Tax.
Serviced Accommodation
Airbnb and rent to serviced accommodation businesses, VAT position and furnished holiday let changes.
Care Homes
Care and nursing home accounts, payroll for large teams, cash flow and funding readiness.
Private Clinics & Healthcare
VAT exemption questions, incorporation decisions and accounts for private practitioners.
Restaurants & Hospitality
Tips and tronc, VAT on food, stock control and payroll for busy hospitality teams.
Qualified, Insured, Accountable
Our team includes AAT qualified accountants. We act as your registered HMRC agent, hold professional indemnity insurance on every engagement and follow a documented review process on every return.
Our London Offices
Meet your accountant in person at one of our four offices, or work with us fully online. Whatever the postcode, you get the same named accountant and the same fixed scope service.
Old Street (Head Office)
256-260 Old Street, London EC1V 9DD
Wimbledon
The Old Church, Quicks Road, London SW19 1EX
Ilford
14 Clements Court, Clements Lane, Ilford IG1 2QY
Loughton
Loughton Seedbed Centre, Langston Road, Loughton IG10 3TQ
We also support small businesses across:
Switching to GMPA in Three Steps
Free consultation
We review your business, records and deadlines, then send a fixed written quote.
Professional clearance
We contact your current accountant, collect your records and set up agent authorisation with HMRC and Companies House.
Onboarding
We set up your cloud software, confirm your deadlines and introduce your named accountant, usually within days.
What Our Clients Say
Rated 5.0 out of 5 from 59 Google reviews.
“Sharaz and his team have done a marvellous job looking after my accounts for over 10 years.”
Tina D., Google review
“They are always helpful, quick to respond and thorough in their work. I wouldn’t use any other accountants despite now living 200 miles away!”
Saamia M., Google review
“They reviewed my case thoroughly and were completely transparent about what was and was not required, which I really appreciated.”
Tamara, Google review
“They are honest, clear and provide excellent advice about tax and compliance.”
Adnan K., Google review
Read all our reviews on Google
Frequently Asked Questions
How much does an accountant cost for a small business in the UK?
It depends on your business structure, turnover, number of transactions and whether you need VAT returns, payroll or bookkeeping. As a guide, London firms typically charge from around £70 to £300 or more per month for a limited company package, while a sole trader who only needs a Self Assessment return usually pays a one-off annual fee. GMPA’s fixed monthly packages start from £70 + VAT per month, and we confirm your exact fee in a written quote before you commit.
Do I really need an accountant for my small business?
There is no legal requirement to use an accountant, but you do have legal filing duties. A limited company must file statutory accounts with Companies House and a Corporation Tax return (CT600) with HMRC every year, and directors usually need a Self Assessment return. Since April 2026, sole traders and landlords with qualifying income over £50,000 must also keep digital records and send quarterly updates under Making Tax Digital for Income Tax, with the threshold falling to £30,000 from April 2027. An accountant makes sure all of this is done correctly and on time, and that you claim every allowable expense and relief.
What type of accountant is best for a small business?
Look for an accountant who is qualified through a recognised professional body such as AAT, ACCA, ICAEW or CIMA, is supervised for anti-money laundering, holds professional indemnity insurance and has experience in your sector. For most small businesses, a firm that works in cloud software such as Xero, QuickBooks or FreeAgent and offers fixed fees is the most practical choice. GMPA’s team includes AAT qualified accountants, we are fully insured, and we specialise in construction, property, serviced accommodation, care homes, clinics and restaurants.
Is it worth having an accountant as a sole trader?
For most sole traders, yes. An accountant makes sure you claim every allowable expense, plan for payments on account and avoid penalties: a Self Assessment return filed even one day after 31 January triggers an automatic £100 fine. Making Tax Digital now requires quarterly updates from sole traders with qualifying income over £50,000, which adds more deadlines through the year. If your income is simple and well below the MTD threshold you may manage alone, but most sole traders find the tax saved and time freed up outweigh the fee.
Can ChatGPT help me with accounting?
AI tools like ChatGPT can explain tax terms, help you draft a budget or suggest how to categorise expenses. They cannot file returns with HMRC or Companies House, act as your authorised agent or take professional responsibility for your figures, and their answers can be out of date or wrong for your circumstances. Use AI for general understanding, and rely on a qualified accountant for anything you file or any decision with tax consequences. At GMPA we use automation to speed up bookkeeping, and every return is still checked by two people before it is filed.
What does your small business accounting package include?
A typical limited company engagement covers bookkeeping, VAT returns where applicable, payroll for directors, annual accounts, Corporation Tax, Confirmation Statement filing and one Self Assessment return for a director, plus year round email and phone support. Sole trader packages cover bookkeeping, MTD quarterly updates and your Self Assessment return.
Can you take over from my current accountant?
Yes. We manage the full handover including the professional clearance letter, transfer of records and agent authorisation with HMRC and Companies House, so the switch is seamless.
Are you Making Tax Digital ready?
Yes. We onboard every client onto MTD compatible software (Xero, QuickBooks or FreeAgent) and submit VAT returns and quarterly Income Tax updates digitally as HMRC requires.
Do you support limited companies and SPVs?
Yes. We work with trading companies, contractor PSCs and SPV property companies, including buy to let portfolios and HMOs requiring statutory accounts and Corporation Tax filings.
Do I need to be based in London to use GMPA?
No. We have four offices in London and Essex, but many clients work with us fully online from elsewhere in the UK and overseas, with the same named accountant and fixed fee.
How do I get started?
Book a free initial consultation. We will review your business, agree the scope, send a fixed quote, and once approved we handle the full onboarding within days.
Get a Fixed Quote From Your Local Small Business Accountants
Book a free, no obligation consultation with a qualified accountant. Fixed monthly fees from £70 + VAT, a named accountant and every return checked twice.
Disclaimer: This content is for general guidance only and does not constitute financial or tax advice. Tax rules change and how they apply depends on your individual circumstances. Please speak to a qualified accountant before acting on anything here.
