Sole trader vs limited company: which actually saves you more?

It’s one of the most common questions we’re asked: should I run my business as a sole trader, or set up a limited company? Here’s how to think it through, properly.

The headline difference

A sole trader and their business are legally the same person. A limited company is a separate legal entity that you own through shares and run as a director. That single distinction drives everything that follows, how you’re taxed, who’s liable when things go wrong, and how much admin you carry.

The tax angle

As a sole trader, you pay Income Tax and National Insurance on your business profits, whether you take the money out or not. As a company, the company pays Corporation Tax on its profits (currently 19% on profits up to £50,000, rising to 25% above £250,000, with marginal relief in between), and you then decide how to pay yourself, usually a small salary topped up with dividends.

The efficiency of the company route comes from two things: the gap between Corporation Tax and higher Income Tax rates, and the fact that dividends carry no National Insurance and are taxed at lower rates than salary. But it only helps if you don’t need to draw every penny out.

A simplified illustration

Imagine two businesses each making £60,000 profit. The sole trader pays Income Tax and Class 4 NIC across that whole figure. The company pays Corporation Tax on its profit, and the director takes a modest salary plus dividends, often leaving more in their pocket overall, and giving the option to retain profit in the company for later if they don’t need it now. The exact saving depends on your numbers, but this flexibility is the heart of the case for incorporating.

The crossover point

There’s no magic number, but for many people the company route starts to look attractive somewhere around £30,000 to £50,000 of annual profit, provided you can leave some money in the business. Below that, the extra cost and admin often outweigh the saving.

Liability and protection

As a sole trader, your personal assets are exposed if the business runs into debt or a claim. A limited company generally limits your liability to what you’ve invested, which matters more in some sectors than others. (Note that directors can still be personally liable in cases such as personal guarantees or wrongful trading.)

Credibility and funding

Some clients, particularly larger ones, prefer to contract with a limited company. Lenders and investors are also generally more comfortable with the structure. If you’re aiming to grow, raise money, or win bigger contracts, incorporation can open doors.

The trade offs

• More admin, annual accounts, a Corporation Tax return, a confirmation statement and director’s payroll.
• More cost, accountancy fees are usually higher for a company than a sole trader.
• Public disclosure, your company’s details and accounts sit on the Companies House register for anyone to see.
• Money isn’t simply “yours”, company money belongs to the company, and taking it out has rules.

Other factors that tip the balance

Pension planning, splitting income with a spouse who is genuinely involved, your other sources of income, future plans to sell, and even how you feel about paperwork all play a part. Incorporation isn’t only a tax decision.

When NOT to incorporate

If your profits are modest, you need to draw everything you earn, or you value simplicity above all, staying a sole trader can be the smarter choice. Incorporating “just in case” can cost more than it saves.

The honest answer

There’s no universal right answer, it comes down to your profit, your plans, your appetite for admin and how much protection you want. The only way to decide well is to model your actual numbers both ways, which is exactly what we’ll do with you before you commit either way.

This article is general information, not personal advice, and tax rules change over time. For guidance on your own circumstances, get in touch.

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