Accounting

Sole Trader Accounts · Wales

Sole trader accounts in Bigyn

Self-employed people in Bigyn need two things at year end: a reliable profit figure and a tax return that matches it. We prepare the accounts, review every expense for what is allowable, and either hand the figures over or file the return as part of the £229 bundle. Fixed fees, agreed in writing, no office visit required.

from £149 · fixed, per year

Next deadlines

  • Online Self Assessment filing deadline and balancing payment due
  • Tax year ends: last day for pension, ISA and dividend timing decisions
  • Making Tax Digital for Income Tax: quarterly updates for sole traders and landlords over £50,000 (from April 2026) and over £30,000 (from April 2027)
  • Second payment on account due

Who this is for

Sole Trader Accounts for Bigyn

Self-employed people in Bigyn trading in their own name: tradespeople, drivers and couriers, hairdressers and beauticians, consultants, creatives, market traders, therapists, tutors and anyone else running a business without a limited company, from a first-year side business to an established trade with a van, equipment and a few thousand transactions a year.

What is included

Everything inside the fixed fee

  • Income and expenditure account for the tax year or your accounting period, with a balance sheet where you want one
  • Every expense category reviewed for what is allowable, including home working, vehicles and the trading allowance
  • Capital allowances on equipment and vehicles, with the cash basis or accruals basis chosen to suit you
  • A plain-English summary: profit, tax and National Insurance due, payments on account and what to put aside
  • Figures prepared in the format the Self Assessment self-employment pages need
  • Records organised and stored so that an HMRC check can be answered quickly

How it works

Sole Trader Accounts from Bigyn, step by step

  1. Scope the job

    We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.

  2. Agree the price

    The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

  3. Hand over the records

    Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.

  4. Approve, then we submit

    You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.

Why IGI

What you get in Bigyn

No hourly rate and no surprise invoice. Bigyn clients know the fee for sole trader accounts before they send a single document, and it stays fixed.

Deadline-first: the dates that matter for sole trader accounts are shown at the top of this page, diarised for every Bigyn client and chased before they arrive.

Online only, UK based. There is no office in Bigyn to pay for, which is why the fee is the same here as anywhere in Wales; the work is done by people in the UK who answer the same day.

You get one contact for sole trader accounts, not a queue. Bigyn clients message the same person throughout and get an answer in working hours, usually within a few hours.

Plain English, with the numbers. Every draft for Bigyn comes with a short explanation of what the figures mean and what, if anything, you should do about them.

Approval before filing is a rule, not a courtesy. For sole trader accounts in Bigyn, every submission to HMRC or Companies House follows your written go-ahead.

Local facts

About Bigyn

Bigyn is in Wales, Wales. Businesses in Wales file with the same HMRC and Companies House as England, and for now the Welsh rates of income tax equal the English ones, though the Senedd can vary them. The practical differences are Land Transaction Tax on property and Welsh-specific business support schemes, and company names and documents may be in Welsh.

Nearby places we also serve for sole trader accounts
PlaceDistanceDirection
Wern, Wales0.2 miW
Ty-isaf0.3 miS
Marble Hall0.3 miN
Llanelli0.4 miNW
Pen-y-Fan, Wales0.4 miSE
New Dock, Wales0.6 miSW
Box, Wales0.6 miN
Morfa, Wales0.7 miSE

Worth knowing

Rules that come up in this work

Corporation Tax rates and marginal relief

Companies pay Corporation Tax at 19% on profits up to £50,000 and 25% on profits over £250,000. Between those figures marginal relief applies, producing an effective rate that rises gradually and a marginal rate of 26.5% on each pound in the band. The thresholds are divided by the number of associated companies, so a director with two companies has thresholds of £25,000 and £125,000 for each.

The VAT registration threshold

VAT registration is compulsory once taxable turnover in any rolling twelve-month period exceeds £90,000, or when you expect to exceed that in the next thirty days alone. The test is rolling, not by tax year, and includes zero-rated sales. Businesses regularly cross it without noticing, and late registration means accounting for VAT on sales where it was never charged to customers.

Director's loan accounts

A director's loan account records money moving between a director and the company that is not salary or dividend. If the director owes the company money nine months and one day after the year end, the company pays section 455 tax at 35.75% of the balance, refundable only when the loan is repaid. Loans over £10,000 are also a benefit in kind unless interest is charged at HMRC's official rate.

Salary versus dividends

Paying yourself from a company involves two routes with different tax treatment. Salary through payroll is a company expense and builds a National Insurance record; dividends come from post-tax profit at lower personal rates. Undocumented drawings that are neither become director's loans, with a 35.75% section 455 charge if not repaid within nine months of the year end.

Payments on account

Payments on account catch out most people in their second year of self-employment. HMRC assumes next year's tax will match this year's and collects half in January and half in July, in advance, on top of the balancing payment. If profits are dropping you can apply to reduce them, but reducing them too far attracts interest. We calculate the right figure rather than guessing.

The Self Assessment calendar

Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.

Making Tax Digital for Income Tax

Making Tax Digital for Income Tax began in April 2026 for sole traders and landlords with qualifying income over £50,000, extends to those over £30,000 in April 2027 and is planned for £20,000 in April 2028. It requires digital records in compatible software and four quarterly updates to HMRC each year, with a final declaration replacing the traditional return. Payment dates are unchanged.

Questions

Sole Trader Accounts questions from Bigyn

Can you deal with my previous accountant?

Yes. Once you authorise us we write for professional clearance and your records, including the previous year's accounts and capital allowance pools, which we need for continuity. Most firms respond within two weeks and nothing about switching changes our fee.

What if HMRC checks my return?

HMRC can enquire into a return within twelve months of filing, and longer if something was omitted. Well-prepared accounts with organised records are the best protection. If an enquiry opens, routine correspondence about a return we filed is handled free, and formal enquiries go through our fixed-fee investigation service.

Should I become a limited company?

It depends on profit level, how much you need to draw, liability exposure and whether you want to retain profits. At modest profits the saving is small after the extra compliance cost; at higher profits incorporation can help. Our free comparison tool gives a first view and the tax planning review gives a definitive one.

I started trading part-way through the year. What is my first accounting period?

Since the basis period reform, sole traders are taxed on profits of the tax year, 6 April to 5 April, regardless of accounting date. A first period runs from your start date to 5 April. If you prefer a different accounting date we apportion the profits, but for most new traders a 5 April year end is simplest.

What can I claim for working from home?

Either a proportion of actual household costs based on rooms and hours, or HMRC's simplified flat rate of £10 to £26 a month depending on hours worked at home. We calculate both and claim the higher. Mortgage interest, rent, council tax, utilities and insurance can all form part of the actual-cost method.

Cash basis or accruals: which should I use?

Since April 2024 the cash basis is the default for sole traders and has no turnover limit; you record income when received and expenses when paid. Accruals matches income and costs to the period they relate to and suits businesses with stock, large debtors or losses to carry. We recommend one based on your figures and explain why.

How do I get started from Bigyn?

Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for sole trader accounts. Once you confirm, we tell you exactly which records to send and the work begins. Most Bigyn clients are set up within a day.

Which deadlines matter most for sole trader accounts?

The next four dates that apply to sole trader accounts are shown at the top of this page, calculated from today. For Bigyn clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.

Fixed fees, filed on time, for Bigyn

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote