Sole Trader Accounts and Self Assessment Tax Returns
Your accounts first, tax return second. We turn your bank statements, invoices, and receipts into clear year-end sole trader accounts and a compliant Self Assessment tax return, so you know how your business is performing and exactly what tax to set aside.
Contents
On this page: Overview • What we do • How it works • FAQs • Related services
Sole trader accounts done properly
As a sole trader your accounts are the backbone of everything: mortgage applications, lending, tax planning, and understanding if your business is really paying you enough. We start with tidy year-end accounts, then use those figures to prepare and file your Self Assessment tax return, so the numbers always line up.
- Year-end sole trader profit and loss from your bank, invoices, and receipts
- Adjustments for use of home, mileage, capital allowances and other allowable expenses
- Clear summary of turnover, expenses, and profit so you can see how your business is doing
- Self Assessment tax return prepared and filed online using your final accounts
- Tax calculation and simple breakdown of what to pay and when to pay it
Who we work with
- Self-employed consultants, coaches, and professional contractors
- Tradespeople: electricians, plumbers, builders, decorators, handymen
- Freelancers and creatives: designers, developers, marketers, photographers, writers
- Health and wellbeing professionals: therapists, counsellors, PTs, yoga and fitness instructors
- Delivery drivers, couriers, taxi and private-hire drivers
- Online sellers, eBay / Amazon / Etsy businesses and side-hustle income
- Self-employed tutors, trainers, and education professionals
Deadline reminder. The online filing deadline for the 2025 to 2026 tax year is 31 January 2027. Late filing penalties and interest can apply if your tax return or payment is late.
Year-end sole trader accounts
We reconcile your bank, sales, and expenses into clear accounts that show turnover, costs, and profit. Ideal for understanding performance and supporting mortgage or lending applications.
Self Assessment tax returns
Using your final accounts, we prepare and submit your Self Assessment tax return (SA100) online, check tax codes, claim reliefs, and provide a simple tax payment summary.
MTD ITSA-ready processes
Making Tax Digital for Income Tax is coming. We set you up with compliant software, simple monthly routines, and quarterly processes so you are ready when rules change.
How it works
- Quick kickoff. We register you if needed, send a secure checklist, and request access to your records.
- Tidy and reconcile. We organise bank, sales, expenses, and check CIS if relevant.
- Draft accounts and tax. You receive a plain-English summary of your accounts and estimated tax.
- E-approval and filing. You sign digitally; we file your tax return and confirm payment amounts and deadlines.
Frequently asked questions
- What forms do sole traders file for Self Assessment?
- Sole traders file the main Self Assessment tax return (SA100) with the self-employment pages (SA103 short or full). If you also have property income, SA105 is added. We handle all of this and make sure the forms match your final accounts.
- When is the Self Assessment deadline?
- For a tax year that ends on 5 April, the online filing and payment deadline is 31 January the following year. We work backwards from this to avoid last-minute stress.
- What expenses can I claim as a sole trader?
- Typical allowable costs include stock and materials, tools, professional subscriptions, marketing, a business portion of phone and broadband, mileage or actual motoring costs, use of home as office, and eligible equipment and software. We review your records to make sure nothing obvious is missed.
- How do payments on account work?
- If your tax bill is above HMRC’s threshold, you may be asked to make two advance payments towards next year’s bill (payments on account). We calculate these for you and review whether a claim to reduce them is justified if profits are falling.
- Do I need to register for Self Assessment?
- Yes, if your self-employed trading income is above £1,000 in the tax year. We can help you register, set up your Government Gateway, and link your account to our agent services.
- Can you help with MTD for ITSA?
- Yes. We can move you onto Xero or another compliant solution, design a simple monthly bookkeeping checklist, and keep your records ready for quarterly MTD ITSA updates once HMRC requires them.
- What if I only traded part of the year?
- We apportion your income and expenses over the correct period and apply opening year rules where relevant, so you are not over-taxed when you start or stop trading.
- Can you work from spreadsheets or paper records?
- Yes. We can tidy spreadsheets, scan in paper records, and migrate you to Xero with bank feeds and digital receipt capture so future years are much easier.
Ready to sort your sole trader accounts?
Speak to an Oxford-based accountant who works with sole traders every day, from tradespeople and freelancers to consultants and delivery drivers. Clear accounts, clear tax, and clear answers.
M A Accounting, Chartered Certified Accountants • Oxfordshire, serving sole traders and self-employed clients across the UK.