Expertise
Our team is fully trained in HMRC regulations and ICAEW standards, giving you accurate and reliable financial guidance.
Expert Tax Services for Sole Traders
Self-Assessment Tax Returns Made Simple
SBX helps sole traders stay compliant with HMRC rules and take the stress out of self-assessment. Our team manages your tax return accurately and on time, so you can focus on running your business.
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Need your self-assessment taken care of?
At SBX, we understand that self-assessment as a sole trader can be a challenge. You’re managing your books and facing HMRC requirements, which can feel daunting. We’re here to ease that burden with a reliable service to handle your annual tax return, ensuring your trade profits, losses, and personal income are accurately reported for compliance.
Get Help With Your Self-Assessment
Support Tailored to You
For those with straightforward income – such as freelancing or a small retail business – our flat-fee return preparation offers a practical solution. We’ll review your records, calculate your taxable income, and submit your Self-Assessment, keeping costs manageable and the process straightforward.
Book Your Flat-Fee Tax Return Service
Handling Complex Finances
If your situation involves complications like rental income or investments, we step in with ICAEW-standard accounts. This includes detailed profit and loss statements and a focus on identifying tax savings, such as allowable expenses or reliefs, to optimise your finances.
Speak to an SBX Accountant Today
Looking Ahead
We also assess your overall financial picture to determine if switching to a limited company could improve your take-home pay. We’ll consider tax rates, setup costs, and long-term benefits, guiding you through the process if it suits your goals, including registration with Companies House.
Work in the trades? Visit our dedicated tradespeople webpage.
Find Out if Going Limited is Right for You
Important HMRC Dates
Your Self Assessment Tax Calendar for 2025-26
Missing a self-assessment deadline can lead to penalties and extra stress. Our tax calendar clearly sets out all key dates for registering, filing, and making payments, so you can plan ahead and stay compliant with HMRC.
See your take-home pay.
A quick estimate of your net pay for 2026/27, after Income Tax and National Insurance.
Take-home earnings
Estimate your net pay after Income Tax and National Insurance.
Show pay as
Take-home pay£0/month
Income Tax (year)£0
National Insurance (year)£0
Net pay (year)£0
England, Wales & NI · 2026/27 · standard tax code · excludes pension, student loan and benefits
Why Choose SBX Accountants?
At SBX, we provide expert accounting services tailored to sole traders, limited companies, and small businesses. Our experienced team helps you stay compliant with HMRC rules while giving proactive tax and business advice to support your growth.
Personalised Service
We take time to understand your business and tailor our services to suit your specific needs.
Efficiency
We handle the paperwork and admin so you can focus on running your business.
Forward Thinking
We plan ahead to help you save on tax and prepare for future growth.
Next Steps
Arrange a free consultation to discuss your needs or download our sole trader self-assessment guide from our website. We can cover topics like claiming expenses and explore the limited company option in detail. Get in touch to get started.
Talk to chartered accountants in London & Slough.
SBX helps you stay compliant & keep more of what you earn with expert tax, accounts, and bookkeeping services.
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