Limited Company vs Sole Trader Calculator UK
Compare estimated take-home income from working through a UK limited company with trading as a self-employed sole trader. This calculator helps you understand how Corporation Tax, Income Tax, National Insurance, dividends and business expenses may affect the money left after tax.
Use the limited company vs sole trader calculator
Enter the expected business income, allowable expenses, salary, dividends and any relevant deductions below. The calculator will estimate the possible take-home position for each route using simplified UK tax assumptions.
Sole trader vs limited company calculator
Compare estimated take-home after Income Tax, National Insurance, Corporation Tax and dividend tax.
What this calculator helps with
This tool helps estimate the difference between trading through a UK limited company and working as a self-employed sole trader. It is useful when you want a broad view of take-home income after common business tax, Income Tax and National Insurance deductions.
Common uses
- Compare limited company extraction with sole trader profit
- Estimate the impact of allowable business expenses
- Understand how salary and dividends can affect company take-home pay
- Sense-check whether incorporation may be worth exploring
Not included
The calculator does not cover every situation, such as VAT, benefits in kind, director loan accounts, company cars, pension relief, retained profits, payments on account timing, Making Tax Digital obligations or complex mixed-income tax positions.
How the limited company vs sole trader calculator works
This calculator compares two common ways of earning income in the UK: trading through a limited company, or working for yourself as a sole trader. The aim is to show an estimated after-tax position rather than a guaranteed result.
For the limited company route, the calculation usually starts with business income, deducts allowable company expenses, estimates Corporation Tax, and then looks at money extracted by the director, such as salary and dividends. For the sole trader route, it usually starts with business income, deducts allowable expenses, and estimates tax and self-employed National Insurance on the resulting profit.
The results can help you compare routes in plain English, but they should be read alongside practical factors such as admin time, accountancy fees, legal responsibilities, commercial risk, pension planning, cash flow and whether you intend to leave profit inside the company.
Assumptions used by this calculator
Limited company estimate
The company side is intended for a simple owner-managed company comparison. Actual results may differ if the company has retained profits, benefits, pension contributions, loans, multiple directors, employees or other corporation tax adjustments.
Sole trader profit estimate
The sole trader side is based on estimated business profit after allowable expenses. It does not decide whether an expense is allowable, and it does not replace proper bookkeeping or tax return preparation.
Tax year and thresholds
Tax rates, allowances and National Insurance thresholds can change. The calculator should be checked against the relevant tax year and official GOV.UK guidance before you rely on the figures.
Cash flow timing
Company profits and director withdrawals can be taxed at different points. Sole trader tax is often paid later through Self Assessment, which means you may need to set money aside for future tax bills in either route.
Example: comparing limited company and sole trader income
The table below explains the main figures you may see when using the calculator. The final result depends on the income entered, allowable expenses, tax year, region and any other deductions included in the tool.
| Item | What it means |
|---|---|
| Company turnover | Total company income before deducting allowable company expenses. |
| Sole trader turnover | Total self-employed income before deducting allowable business expenses. |
| Allowable expenses | Business costs that may reduce taxable profit if they meet HMRC rules. |
| Company profit | The estimated company profit before Corporation Tax and director extraction. |
| Salary and dividends | Money taken from the company by the director under the assumptions used. |
| Sole trader profit | The estimated sole trader profit after allowable expenses, before Income Tax and National Insurance. |
| Estimated deductions | The Corporation Tax, Income Tax and National Insurance estimated under the assumptions used by the calculator. |
| Estimated take-home income | The broad amount left after the deductions included in the calculation. |
Limited company and sole trader income are not the same
Limited company and sole trader profits can look similar on paper, but they do not always feel the same in real life. A company is a separate legal entity, so company money is not automatically the director's personal income. A sole trader is taxed on business profit more directly, even if some of the cash stays in the business bank account.
Limited companies can offer planning flexibility, but they also bring extra filing, record-keeping and legal responsibilities. A higher headline take-home estimate may not mean a better overall position once accountancy fees, admin time, insurance, commercial needs and risk are taken into account.
What to check before relying on the result
Your extraction plan
Limited company results depend on how profits are extracted. Check the salary, dividends, pension contributions and any profit left in the company before comparing the result.
Your business costs
Sole trader estimates depend heavily on expenses. Check software, equipment, travel, insurance, accountancy fees, marketing, workspace costs and any industry-specific costs for both business structures before comparing the result.
Your tax position
Other income, student loans, pension contributions, dividend income, payments on account and previous Self Assessment history can all change the real-world outcome.
Tax rates and source checks
Where to check the official rules
UK tax rules, allowances and National Insurance thresholds can change. For important decisions, compare the calculator result with the latest official guidance and consider speaking to a qualified accountant or tax adviser.
Explore more UK tax calculators
Important disclaimer
This calculator is for general information only and provides an estimate based on simplified assumptions. It is not tax advice, financial advice or business advice. Actual results can vary depending on your company structure, allowable expenses, salary, dividends, pension position, student loan plan, other income, Self Assessment history, Corporation Tax position, timing of payments and wider circumstances. Check official guidance or speak to a qualified accountant or tax adviser before making decisions based on the results.
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