Choosing between sole trader and limited company is one of the first decisions every new business owner faces. It affects your tax, your personal liability, your MTD obligations, and how much admin you need to do. Here is an honest comparison — but please note: we are not accountants, and this is not personal financial advice. Consult a chartered accountant for your specific situation.
Sole trader: the simplest structure
As a sole trader, you and your business are the same legal entity. You keep all the profits (after tax), but you are personally liable for any debts. It is the simplest structure to set up and run.
| Aspect | Sole trader |
|---|---|
| Setup | Register with HMRC, nothing else needed |
| Liability | Personal liability for business debts |
| Tax | Income tax on profits (20-45%) + NICs |
| MTD obligations | Quarterly updates + EOPS if in scope |
| Admin | Self Assessment return annually |
| Privacy | Private — accounts not public |
Limited company: separate legal entity
A limited company is a separate legal entity from you. The company owns its assets, pays its debts, and files its own tax returns. You are a director (and usually a shareholder).
| Aspect | Limited company |
|---|---|
| Setup | Incorporate at Companies House, file confirmation statements |
| Liability | Limited liability — company is liable, not you |
| Tax | Corporation tax on profits (19-25%) + personal tax on dividends/salary |
| MTD obligations | MTD VAT only (if VAT-registered) |
| Admin | Company accounts + CT600 + Self Assessment |
| Privacy | Public — accounts visible on Companies House |
Tax comparison at different income levels
This is a simplified illustration. Actual tax depends on your full circumstances including other income, pension contributions, and dividend allowance. Always get professional advice.
| Annual profit | Sole trader (approx tax) | Limited company (approx tax) |
|---|---|---|
| £20,000 | approx. £2,500 | approx. £2,500 |
| £40,000 | approx. £6,000 | approx. £5,500 |
| £60,000 | approx. £11,000 | approx. £9,500 |
| £80,000 | approx. £17,000 | approx. £14,000 |
Note: these are rough estimates including income tax, NICs, and corporation tax. Your actual tax will differ. Use HMRC’s tax calculator or consult an accountant.
Which structure is best for MTD compliance?
If you are in scope for MTD Income Tax, sole traders have the simpler MTD obligation — just quarterly updates and an EOPS. Limited companies only have MTD VAT obligations, which are simpler still (quarterly or monthly VAT returns only).
Software for both structures
Xero — handles both sole trader and limited company
Xero works for sole traders (Xero Simple at £7/month) and limited companies (Xero Grow at £33/month). You can start as a sole trader and upgrade to a company plan later without migrating data. Xero handles MTD VAT for both structures.
Sage — strongest for limited companies
Sage is particularly strong for limited companies that need built-in payroll and more complex reporting. Sage Accounting Start (£14/month) works for sole traders, and higher tiers support limited companies with payroll and multi-company features.
Bottom line
Start as a sole trader if you are testing a new business, expect modest profits, or want the simplest admin. Consider a limited company if you expect higher profits, want limited liability, or plan to seek investment. The choice affects your tax, your MTD obligations, and your personal risk — get professional advice before deciding.
This article is for information only and does not constitute financial or legal advice. Consult a chartered accountant for your specific circumstances.