Sole Trader vs Limited Company: Which Is Right for You? (2025/26)

“Should I be a sole trader or a limited company?” is the single most common question we hear from people starting out. Both are completely legitimate ways to run a UK business — the right one depends on your profit, your appetite for admin, and how much risk you want to carry. Here’s the honest comparison.

The quick version

Sole trader — simplest and cheapest to run. You and the business are legally the same. You pay Income Tax and National Insurance on your profits through Self Assessment. Best when you’re starting out or profits are modest.
Limited company — a separate legal entity registered at Companies House. Potentially more tax-efficient and it limits your personal liability, but it’s more admin and your details are public. Best when profits grow.

Tax: the headline difference

This is where most of the decision sits.

As a sole trader, your whole profit is taxed as personal income: 20%/40%/45% Income Tax above the £12,570 allowance, plus Class 4 National Insurance.

As a limited company, the company pays Corporation Tax on its profit, and then you pay personal tax only on what you actually take out — usually a small salary plus dividends, which are taxed at lower rates and carry no National Insurance. Taking pay this way can be noticeably more efficient.

The catch: the advantage is biggest when you don’t need to draw all the profit. If you take everything out to live on, the gap narrows. Our free salary & dividend calculator shows what a director actually keeps.

Liability: who’s on the hook

Sole trader: there’s no legal separation between you and the business, so you’re personally liable for its debts. Your personal assets are potentially exposed.
Limited company: the company is separate, so your liability is generally limited to what you’ve put in. This matters more in higher-risk trades.

Admin and cost

	Sole trader	Limited company
Setup	Free, ~10 minutes	Register at Companies House
Annual filing	One Self Assessment	Statutory accounts + CT600 + confirmation statement
Records	Simple	More formal
Privacy	Private	Details public at Companies House
Accountancy cost	Lower	Higher

A sole trader’s obligations are light — register, keep records, file one tax return. A company has more moving parts (which is partly why people use an accountant), but in return you get tax flexibility and protection.

Credibility

Some clients and suppliers prefer dealing with a “Ltd” — it can look more established. It’s rarely the deciding factor, but in some sectors it nudges the decision.

So which should you choose?

A useful rule of thumb:

Just starting, or profits under ~£30,000? Sole trader is usually the sensible, low-hassle choice.
Profits climbing past ~£30,000–£50,000, and you don’t draw it all? It’s worth modelling a limited company — the tax saving often outweighs the extra admin.
Worried about liability? A company’s protection may justify it sooner.

The honest answer is that it’s a numbers decision, and the crossover point is different for everyone. Rather than guess, we model both options on your actual figures so you can see the real difference in pounds.

If you’re weighing it up, our sole trader accountants and limited company accountants will run the comparison for you — and if you’re ready to switch, here’s how changing from sole trader to limited company works.

Frequently asked questions

Is it better to be a sole trader or a limited company?

It depends on your profit and priorities. Sole trader is simpler and cheaper to run and fine for lower profits. A limited company can be more tax-efficient once profits rise (roughly £30,000–£50,000+), and it limits your personal liability — but it comes with more admin and filing. There's no universal answer; it's a numbers-and-circumstances decision.

At what profit should I switch to a limited company?

There's no fixed threshold, but many people start seriously considering it once profits reach around £30,000–£50,000, because the tax efficiency of taking a small salary plus dividends can outweigh the extra admin. The exact crossover depends on how much you draw from the business and your other income — model it on your own figures before deciding.

Do limited companies pay less tax than sole traders?

Often, but not always. A company pays Corporation Tax on profits and you then pay personal tax on what you take out (salary and dividends), which can be more efficient than a sole trader paying Income Tax and Class 4 NI on all profit. But it depends on how much you withdraw — if you take everything out, the advantage shrinks.

What's the main downside of a limited company?

Admin and exposure. A company must file annual accounts and a Corporation Tax return, keep statutory records, and its details are public at Companies House. It's more to manage than a sole trader's single Self Assessment — though an accountant handles most of it for you.

Can I change from sole trader to limited company later?

Yes, and most people do exactly that — start simple as a sole trader, then incorporate once it makes financial sense. The switch is straightforward with the right help; we cover it in our guide to changing from sole trader to limited company.

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Reviewed by Provense Accountants

Written and reviewed by our team of qualified accountants (AAT-regulated). This guide is general information, not personal tax advice — book a free consultation for advice on your situation.