Sole trader or limited company? A plain-English guide for 2026

It's the question almost every growing sole trader reaches eventually: should I set up a limited company? The honest answer is "it depends" — but the things it depends on are simpler than the internet makes them sound.

The liability difference

As a sole trader, you and the business are legally the same person. If the business owes money, you owe money — your house, your savings, all of it is on the table. A limited company is a separate legal entity: in most cases, your personal assets are protected if things go wrong. For some people that protection alone is worth incorporating.

The tax picture

Sole traders pay income tax and National Insurance on all their profits. A limited company pays corporation tax on its profits, and you then decide how to pay yourself — usually a mix of salary and dividends — which can be more efficient, particularly once profits climb past the basic-rate band. But it's not a free lunch: there's more admin, more filing, and dividend rules to follow.

There's no universal crossover point, but as a rough rule of thumb, incorporation starts to earn its keep once profits are comfortably into five figures and stable. Below that, the extra admin can outweigh the saving.

The admin reality

A limited company files annual accounts and a corporation tax return, keeps statutory records, and submits a confirmation statement to Companies House. It's all very manageable — especially when someone else is doing it — but it's more than a sole trader's single self-assessment. This is exactly the kind of thing a fixed monthly plan is designed to absorb so you never think about it.

So which is right for you?

If you value simplicity, you're testing an idea, or your profits are modest, staying a sole trader is perfectly sensible. If you want personal-asset protection, you're past the point where the tax maths tips in your favour, or you're chasing contracts that expect a limited company, it's probably time. The best decision comes from running your actual numbers — which is a conversation, not a blog post. That's what we're here for.