Hayes Chartered Certified Accountants and Tax Consultants London UK | 020 8646 0800 | WhatsApp: 07429584191 | info@hayes-accountants.co.uk
ACCA Certified | 5-Star Rated | Fixed-Fee Packages from £24/month | London & UK-Wide
Most small business owners in the UK either avoid hiring an accountant because they assume it’s too expensive — or they pay far too much because they don’t know the going rate. Either way, they’re losing money.
Whether you’re running a startup in London or a sole trader business anywhere in the UK, understanding the real accountant cost for a small business UK is the first step to making a smart financial decision. This guide breaks down exactly what accountants charge, what’s included, and how Hayes Chartered Certified Accountants and Tax Consultants London offers expert help at transparent, fixed fees.
You’ll find a full pricing table by business type, answers to the most-asked questions on Google, and a comparison of monthly packages vs one-off fees — so you can make the right call for your business today.
Quick Answer
UK small business accountant costs range from £50–£150/month for sole traders to £100–£300/month for limited companies, depending on services. Hayes Chartered Certified Accountants and Tax Consultants London offers fixed-fee packages from just £24/month with no hidden charges.
Before looking at costs, it helps to understand what a qualified accountant actually does — because the value goes far beyond filing a tax return. Here’s what a full-service small business accountant covers:
At Hayes Chartered Certified Accountants and Tax Consultants London, our small business packages cover all of the above under one fixed monthly fee. No surprise invoices. No hidden add-ons.
Monthly accountant costs for UK small businesses typically range from £50 to £350 per month depending on the size of the business, number of transactions, and services included. Sole traders generally pay less than limited companies. Businesses with payroll, VAT registration, or multiple bank accounts sit at the higher end of the range.
| Business Type | Typical Monthly Cost | What’s Usually Included |
|---|---|---|
| Sole Trader | £50 – £120/month | Self-assessment, bookkeeping, HMRC filing |
| Self-Employed | £50 – £100/month | Tax return, expenses, HMRC submissions |
| Limited Company | £100 – £300/month | Accounts, corporation tax, payroll, VAT |
| Landlord | £30 – £80/month | Rental income tax, CGT advice, HMRC |
| Startup | £75 – £200/month | Company formation + full accounts setup |
| Contractor | £80 – £150/month | IR35 review, invoicing, tax planning |
Hayes Chartered Certified Accountants and Tax Consultants London offers fixed monthly fees starting from £24/month for landlords and competitive packages for all business types. Call 020 8646 0800 for a personalised quote.
A self-assessment tax return typically costs between £150 and £350 through a UK accountant, depending on the complexity of your income sources. At Hayes Chartered Certified Accountants and Tax Consultants London, our CIS personal tax return service is a flat £39 including VAT — one of the most affordable rates in the UK.
A fixed-fee accountant charges a set monthly amount regardless of how many calls you make or emails you send. No hourly rates, no surprise bills, no confusion about what’s included. Hayes Chartered Certified Accountants operates on a fixed-fee model — you know exactly what you pay every month, with zero hidden charges.
Monthly Package vs One-Off — Which Should You Choose?
Choose a monthly package if: You run an ongoing business, have payroll or VAT obligations, need regular HMRC compliance support, or want year-round tax planning.
Choose one-off if: You only need a single self-assessment filing, a CIS refund claim, or a one-time company formation service.
Yes — and the numbers prove it. HMRC issued over £100 million in penalties for late or incorrect tax returns in the last financial year alone. Beyond avoiding penalties, a skilled accountant identifies deductions and allowances you didn’t know existed — often saving you more than their fee in the first year.
You are not legally required to hire an accountant as a sole trader. However, limited companies must file accounts with Companies House and corporation tax returns with HMRC. VAT-registered businesses (over £90,000 turnover as of 2025) have quarterly obligations. And from April 2026, Making Tax Digital for Income Tax affects self-employed individuals and landlords earning over £50,000. A qualified accountant keeps you fully compliant.
No two businesses are identical, and your monthly accountant cost will depend on several factors:
Yes — but “cheap” should mean affordable and transparent, not unqualified. Always check for ACCA or ICAEW accreditation. These are the two most widely recognised professional qualifications for UK accountants, carrying regulatory oversight that protects you as a client.
Hayes Chartered Certified Accountants and Tax Consultants London is ACCA-accredited, based in Hayes London, and offers some of the most competitive fixed-fee accounting packages in the city — with no hidden costs and a full money-back guarantee.
Freelancers typically need a self-assessment tax return, expense tracking, and guidance on allowable deductions. Monthly packages start from around £50–£80/month. Hayes specialises in accountants for self-employed professionals across all sectors.
Running a limited company means statutory obligations with both Companies House and HMRC — year-end accounts, corporation tax, director payroll, and often VAT. Expect to pay £100–£300/month for a comprehensive limited company accountant package.
Since Section 24 mortgage interest restrictions changed the tax landscape, proper accountancy is more important than ever for landlords. Landlord accounting packages at Hayes Chartered Certified Accountants and Tax Consultants London start from just £24/month — covering rental income, self-assessment, CGT planning, and buy-to-let advice.
CIS contractors have 20% (or 30% if unregistered) deducted from payments at source. In most cases, a correctly filed tax return results in a significant refund. Hayes offers CIS tax returns for a flat fee of £39 including VAT.
New businesses need company formation, HMRC registration, bookkeeping setup, and Making Tax Digital compliance from day one. Hayes startup accountants handle all of this from £75/month — with cloud accounting software setup included.
Online sellers face complex VAT rules, multi-currency transactions, and increasing HMRC scrutiny. Hayes e-commerce accountants understand Fulfilled-by-Amazon structures, digital service VAT, and inventory accounting.
Hayes Chartered Certified Accountants and Tax Consultants London offers everything a small business needs under one fixed monthly fee — with complete transparency and no surprises:
Packages start from £24/month. Call 020 8646 0800 or WhatsApp 07429584191 to get your personalised quote today.
Monthly accountant costs range from £50 to £300/month depending on business type and services included. Sole traders pay less than limited companies. Hayes offers fixed monthly packages starting from £24/month for landlords, with competitive rates for all business types.
While not legally required, it is practically essential. Limited companies must file accounts with Companies House, submit corporation tax returns to HMRC, and comply with Making Tax Digital. Errors carry serious financial penalties. An accountant ensures you stay fully compliant.
Sole trader accountant costs in the UK typically range from £50–£120 per month for ongoing support, or £150–£300 as a one-off fee for a self-assessment tax return. The exact cost depends on the complexity of your income and whether you have rental or investment income.
Yes — for small businesses, fixed-fee accounting is almost always better. You know exactly what you pay each month, can budget confidently, and never worry about the cost of a phone call or quick question. Hayes operates exclusively on a fixed-fee, fully transparent model.
Legally yes — but it carries real risk. HMRC issues millions in penalties for late or incorrect filings every year. You may also miss deductions that reduce your bill significantly. For most small businesses, professional help costs less than the mistakes it prevents.
A self-assessment tax return through an accountant typically costs between £150 and £350 in the UK. At Hayes Accountants, CIS personal tax returns start from just £39 including VAT — one of the best value rates available anywhere in the UK.
Often yes. Hayes provides full online accounting at competitive London rates, with phone, WhatsApp, and email support included — so you get the personal service of a local firm without the central London premium price tag.
Hayes uses Xero, QuickBooks, and Zoho — three of the UK’s leading cloud accounting platforms. We set up and configure your software as part of your package, with 24/7 online access to your accounts through your personalised dashboard.
The accountant cost for a small business in the UK doesn’t have to be a mystery. Sole traders typically pay £50–£120/month, limited companies £100–£300/month, and one-off returns start from as little as £39 at Hayes.
The right accountant doesn’t have to cost a fortune. With Hayes Chartered Certified Accountants and Tax Consultants London UK, you get ACCA-qualified expertise, full-service accounting, and transparent fixed fees — from just £24 a month. No surprises. No jargon. Just great accounting that saves you more than it costs.
Trusted by thousands of small businesses, sole traders, and landlords across London and the UK.
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Call Us: 020 8646 0800
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Email: info@hayes-accountants.co.uk
Address: Aquis House, 27-37 Station Road, Hayes, London UB3 4DX
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About the Author
Hayes Chartered Certified Accountants and Tax Consultants
This guide was written by the team at Hayes Chartered Certified Accountants and Tax Consultants — ACCA-accredited accountants based in Hayes, London, with over a decade of experience serving small businesses, sole traders, limited companies, and landlords across the UK. Hayes is rated 5 stars on Google by hundreds of verified clients.
020 8646 0800 | info@hayes-accountants.co.uk
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Welcome to Hayes Certified Accountants and Tax Consultants London UK, where precision meets prosperity in the world of finance.
Stop juggling your finances alone. Hayes Chartered Certified Accountants and Tax Consultants offers everything a business or individual needs under one roof — Bookkeeping, VAT returns, payroll, self-assessment tax returns, pension auto enrolment, year end accounts, corporation tax, capital gains tax, CIS tax returns, tax rebates, landlord taxation, management accounts, cash flow management, budgeting and forecasting, tax advisory, company formation, registered address, company secretarial services, and Making Tax Digital (MTD) compliance. One team. Every service. Zero hidden fees.
Book your free consultation today and find out how much we could save you.
This is a very useful breakdown of accountant costs for small businesses in the UK. Many business owners focus only on the monthly fee, but often overlook the value an experienced accountant can provide through tax planning, compliance support, bookkeeping accuracy, and business growth advice.
In my experience, choosing an accountant based solely on price can be costly in the long run. A good accountant can help identify tax-saving opportunities, improve cash flow management, and ensure HMRC deadlines are never missed.
Thanks for sharing such a practical guide for startups, sole traders, and limited companies looking to understand the true cost of accounting services in the UK.