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Business structure FAQ

Sole trader vs limited company

A sole trader is simpler, cheaper and more private. A limited company protects your personal assets and can be more tax-efficient once profits grow. Here is how to weigh the two, and when it is worth switching.

The honest answer: it depends on your profit and your appetite for admin. A sole trader is the simplest way to work for yourself, with very little paperwork and your details kept private, but you are personally liable for the business. A limited company is a separate legal entity that protects your personal assets and can be more tax-efficient at higher profits, in exchange for more admin and public filings.

  Sole trader Limited company
Setup and admin Register with HMRC, that is it. Very little paperwork. Incorporate at Companies House, file annual accounts and a confirmation statement.
Personal liability You are the business. Personal assets are at risk if it owes money. The company is separate. Your liability is limited to what you put in.
How you are taxed Income Tax and Class 4 National Insurance on your profit. Corporation Tax on profit, then tax on the salary and dividends you take.
Privacy Your details stay private. Directors and accounts are on the public Companies House register.
Take-home efficiency Simple, but less room to plan once profits are higher. A salary and dividend mix can be more efficient above roughly £30k to £40k profit.
Time to switch?

Signs you have outgrown sole trader

There is no single threshold, but a few signs tend to point towards incorporating. If several of these ring true, it is worth modelling the numbers both ways before you decide.

Worth a review

When a company starts to make sense

  • Your profits are rising past roughly £30,000 to £40,000 a year
  • You want to protect your home and savings from business debts
  • Clients or contracts expect you to be a limited company
  • You want to bring in a co-owner or outside investment
  • You want to protect your business name on the register

Near the line? We will model both for you.

Questions

Sole trader vs limited company, answered

Is it better to be a sole trader or a limited company?
Neither is better in every case. A sole trader is simpler, cheaper to run and more private, which suits people who are starting out or whose profits are modest. A limited company protects your personal assets and can be more tax-efficient once profits are higher, at the cost of more admin and public filings. The right answer depends on your profit level, your appetite for paperwork, and whether you need limited liability. We are happy to model both for your numbers.
Who pays less tax, a sole trader or a limited company?
At lower profits there is often little difference, and a sole trader can come out ahead once the simplicity is factored in. As profits rise, a limited company usually becomes more tax-efficient, because profit is taxed at Corporation Tax rates and you can take a tax-efficient mix of a low salary and dividends rather than paying Income Tax and National Insurance on everything. The crossover point varies with your circumstances, so it is worth getting it modelled rather than assuming.
When should I switch from sole trader to limited company?
Common triggers are profits rising past roughly £30,000 to £40,000, wanting to protect your personal assets, a client requiring you to be incorporated, or planning to take on investment or a business partner. There is no fixed rule, it is about when the tax savings and liability protection outweigh the extra admin. If you are near that point, a quick review will tell you whether the switch is worth making now.
Can I lose my house as a sole trader?
In principle, yes. As a sole trader there is no legal separation between you and the business, so if it cannot pay its debts, creditors can pursue your personal assets, which can include your savings and, in serious cases, your home. A limited company is a separate legal entity, so your personal assets are generally protected and your liability is limited to what you have invested. For higher-risk trades this protection is often the deciding factor.
Do I pay less National Insurance as a limited company?
Often, yes. Sole traders pay Class 4 National Insurance on their profits. In a limited company, dividends do not attract National Insurance at all, and a carefully set director salary can keep employer and employee National Insurance low while still building your State Pension record. This is one of the main reasons a company can be more efficient at higher profits, though it has to be balanced against the extra running costs.
Is it hard to change from sole trader to a limited company?
No, the mechanics are straightforward: you incorporate a company, re-register for the relevant taxes, move your bank account and contracts across, and tell HMRC you have stopped trading as a sole trader. The value is in getting the timing and the setup right, salary and dividend levels, VAT, and transferring any business assets cleanly. We handle the whole switch so nothing slips.

Compare the legal structures: Set up a business, GOV.UK.

Sole trader or company? Let us model it

Tell us your profit and your plans and we will show you the tax both ways, in plain English, so you can decide with the numbers in front of you. Fixed fee, no obligation.