Accounting, sorted.

Online Accounting Services for Sole Traders, Limited Companies, Residents & Non-Residents.

Contact us for free initial meeting

Rated 4.9 / 5 based on 2,543 reviews on:

Supporting Individuals and Businesses Across Industries

You…

Self Assessment tax return

Struggling with self-assessment tax return? We ensure your tax return is accurate, timely, and optimised for savings. Let us take the stress off your shoulders.

Sole Trader Accounting

From bookkeeping to tax returns, we provide expert guidance so you can focus on running your business. Stay compliant and save time and money with our help.

Limited Company Accounting

We handle statutory accounts, corporation tax returns, and more, so you can focus on growing your business. Partner with us for reliable, hassle-free accounting.

New Business Setup

We’ll help you set up your company, register for taxes, and get your finances in order. Turn your business idea into reality with our expert support.

And yes, changing accountants is very easy—it only involves a single email.

We Do Accounting Differently

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Qualified & Licensed

We’re licensed by the AAT (Association of Accounting Technicians), ensuring your business is in capable hands.

Fully Online

From e-signatures to tax declarations and meetings, everything can be done online, allowing us to serve clients anywhere. We’re also happy to meet in person if preferred.

7-Day Support

Our support is available around the clock. Expect quick responses to your queries (from a real, qualified accountant), even after 5 PM and on weekends.

Software

We’ll equip you with all the necessary technology, including (but not limited to) accounting software, login details to scan your business expenses and invoices, and integrations for online marketplaces.

Testimonials

Client Experiences, Unfiltered

I have been working with Mr. Ali for 4 years for my personal tax return in England. Having worked with many accountants previously, I can confidently say that he is an expert in his area. Unlike other accountants, he is very responsive and it is very easy to reach him.

Furkan Yilmaz

I have been using accounting services from Leon Advisers for 4 years and am greatly satisfied with their services. Ali has been very attentive and responsive to all of my questions, and he has been proactive in avoiding any potential problems by sending regular reminders of upcoming payments and documentation. He has made the transition to self-employment super smooth for me and was always very accessible in answering any immigration-related questions. I will definitely continue to work with them in the future.

Aydanur Baran

I have been living in London for approximately 4 years, and I moved here under the Ankara Agreement. Since the day I arrived, Mr. Ali Ihsan has been responsible for the accounting matters of my company. When I first came, I had no idea about the processes I needed to complete (such as company registration and other paperwork). Mr. Ali handled everything for me from A to Z, as if he were an accountant working exclusively for me.
He patiently answered all my questions, even those unrelated to accounting, without any hesitation. In this country, he has gone above and beyond to assist me with both my accounting needs and personal matters (such as bank accounts, police registration, etc.). I am incredibly grateful for all his support. I look forward to working with him for many years to come.

Gokberk Pinar

We’ve been working for almost a year now. Great service, great people

Ilayda Bilek

Your Queries, Answered.

Do you help with company formation and tax registrations?

Yes, we do! We can assist with forming your company and registering it for relevant taxes, ensuring everything is set up correctly from the start.

You can call us directly or request a callback. A qualified, UK-based accountant will discuss your needs, determine pricing, and send you a payment link along with an e-signable contract to get started.

What types of businesses do you work with?

We work with:

Individuals: Self-assessment clients (both residents and non-residents).
Sole Traders: Across various industries.
Limited Companies: From startups to established businesses.

Visit our Who We Work With page for a detailed list of industries.

What is included in your monthly accounting services?

Our monthly accounting services cover everything you need, including:

Bookkeeping
Payroll submissions
Quarterly VAT returns
Workplace pensions
Statutory annual accounts
Corporation tax returns

Additionally, we provide 7-day support, tax efficiency reviews, online accounting software, accountant reference letters, and remind you of important deadlines.

Can you help me with my self-assessment tax return only?

Absolutely! Our self-assessment service starts at £150 per year. The fee increases by £50 for each additional income source.
For example:

Salary income + dividend income from a single company = £250.

I don't live in the UK, but I have a limited company and/or property income. Can you help?

Of course! We specialize in assisting non-residents with UK-based businesses or property income.

Which software do you use?

We work with leading accounting software, including:

Capium
Xero
QuickBooks
FreeAgent
Dext
A2X

Is your team based in the UK?

Yes, our entire team is based in the UK and comprises AAT-licensed accountants.

Can I cancel my monthly accounting service anytime?

Yes, you’re free to cancel at any time—no long-term commitments required.