Sole Trader vs Limited Company: Trade Business Decision Sheet
The structure decision needs your actual plan
A sole trader reports business profit personally; a limited company has its own accounts and tax obligations, with separate treatment when money is paid to the owner. There is no universal profit level at which incorporation is best. Other income, withdrawals, pensions, retained profits, administration and contractual liabilities change the comparison.
Write down the inputs below before asking an accountant to model both structures. Set the tax year and residence jurisdiction; Scottish Income Tax can differ. Business registration and occupational competence are separate decisions.
Source: HMRC: corporation tax rates
Current figures: 2026/27, checked 2 October 2026
- Dividend ordinary and upper rates are 10.75% and 35.75% from 6 April 2026; the additional rate is 39.35%. The dividend allowance is £500.
- For self-employed profits of £7,105 or more, Class 2 contributions are treated as paid. Below that amount, eligible people can choose voluntary Class 2 at £3.65 a week. Class 2 was not simply abolished.
- Class 4 is 6% on profits above £12,570 up to £50,270, and 2% above £50,270.
- The digital confirmation-statement fee is £50 from 1 February 2026, paid for the first statement in a 12-month payment period.
Employer NI and eligibility for Employment Allowance need checking when modelling salary. Corporation Tax depends on the applicable company circumstances, including associated companies; do not treat a headline rate as the complete calculation.
Sources: HMRC: dividend tax, HMRC: self-employed NI 2026/27, Companies House: fees from 1 February 2026, HMRC: employer rates 2026/27, HMRC: corporation tax rates
Historical illustration: 2024/25, not today’s recommendation
Historical fictional illustration, 2024/25, England/Wales. Assume sole-trader profit of £40,000, the full £12,570 personal allowance, no other income or reliefs, basic-rate Income Tax and Class 4 at 6%. Income Tax on £27,430 is £5,486; Class 4 is £1,645.80. The combined figure is £7,131.80 before any other liabilities or adjustments.
This narrow illustration is retained to show the calculation’s assumptions. It is not a comparison with a company, a prediction of take-home pay or an incorporation threshold. Check the relevant tax-year rules and your personal situation before reusing the calculation.
Sources: HMRC: Income Tax rates, HMRC: self-employed NI 2026/27
Fictional paired plans: the same profit needs different inputs
Fictional inputs, not tax recommendations. Two businesses each expect trading profit of £40,000. Owner A also has PAYE income and needs most business cash for household spending. Owner B has no other income and plans to retain some cash for equipment. Equal trading profit does not establish equal personal tax, withdrawals or an ideal structure.
| Plan A | Plan B |
|---|---|
| Other PAYE income: record amount and tax year | No other income assumed: confirm all sources |
| Household withdrawals: record amount and timing | Retained cash: record equipment plan and timing |
| Model personal allowances, withdrawal route and costs | Model retained profits, later withdrawals and costs |
Give both plans to the accountant with the completed worksheet below. Their comparison should state the year, jurisdiction and assumptions rather than apply a universal incorporation threshold.
Copy this accountant-input sheet
| Input | Your entry |
|---|---|
| Tax year and residence jurisdiction | ___ |
| Business turnover and profit, kept separate | ___ |
| Other personal income and relevant allowances | ___ |
| Money needed personally versus retained for the business | ___ |
| Salary, dividends and pension assumptions | ___ |
| Employee NI, employer NI and allowance eligibility | ___ |
| Accountancy, filing and insurance costs for each structure | ___ |
| Contracts, guarantees, financing and liabilities to review | ___ |
| Accountant’s compared result and assumptions, dated | ___ |
Keep supporting invoices and receipts, rather than guessing turnover from a bank balance. Your quotes and agreed job scope supply part of that record; they do not calculate your personal tax.
Liability and administration are part of the choice
A company is a separate legal entity, but personal guarantees and duties can still create personal exposure. Check the actual contracts and insurance rather than assuming the company name removes every risk. HMRC, Companies House and an appropriately qualified adviser own the registration, filing and advice routes.
For a new sole trader, use the registration and deadline guide. For the actual work, use the first-job record pack.
Sources and references
Blake Folgado
Blake is a co-founder of Tradehand, a UK trades marketplace More from Blake
