Accounting, sorted.

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

Find the accounting support you need

Choose the support that fits your UK business or property: sole traders, limited companies, Self Assessment and landlords.

Sole Traders Limited Companies Self Assessment Landlords / Property

Testimonials

Client Experiences, Unfiltered

Google5.0

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

Supporting Individuals and Businesses Across Industries

Accounting Support Built Around 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

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.

Your Queries, Answered.

Do you help with company formation and tax registrations?

Yes. We can form UK limited companies and handle agreed tax registrations. The scope and ongoing filing duties are confirmed in writing before the engagement starts.

Yes. The initial meeting, identity checks, proposal and signatures, and document exchange can all be completed online.

What types of businesses do you work with?

We support UK sole traders, limited companies, landlords, individuals needing Self Assessment help, and some non-residents with a UK accounting obligation.

What is included in your monthly accounting services?

It depends on the package. Support may include bookkeeping, statutory accounts, Corporation Tax, payroll, VAT, the confirmation statement and accounting software. Your written proposal lists every inclusion.

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

Yes. Self Assessment support starts at £150 per year. The final fee is confirmed in writing after we review the income sources and records involved.

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

Yes. We support some non-UK residents who have UK limited companies, rental income or other UK reporting obligations. We confirm the scope after reviewing your circumstances and records.

Which software do you use?

We work with established platforms including Xero, QuickBooks, FreeAgent, Capium, Dext and A2X. We recommend the setup that best fits your business, records and reporting needs.

Is your team based in the UK?

Yes. Our team is based in the UK, and Leon Accountants Limited is an AAT-licensed practice.

Can I cancel my monthly accounting service anytime?

Yes. You can ask to cancel your monthly service at any time, subject to the notice terms in your engagement letter. We will explain any outstanding work, filings or fees before the service ends.