Changing from sole trader to limited company

Many businesses begin life as a sole trader by default, it's just how most people start out. But when it comes to changing from sole trader to a limited company, what is the best way to approach it?

With more personal responsibility on you as a sole trader when it comes to factors such as losses and tax, changing to a limited company structure might be the best option for you as your business continues to grow.

However, despite this process being a natural transition for many business owners, few take the time to devise what is the optimum way of changing from sole trader to limited company.

In addition to understanding the difference between a sole trader and limited company, there are several factors involved in making the right decision on changing structure. These include the tax you pay as a sole trader, the money you can free up in the form of a director’s loan, and the value of your existing business.

As a leading accountants in London, our team of experts are fully equipped to analyse and understand your business, and help you make a totally informed decision on whether you should continue as a sole trader or move into the limited company ranks, as well as guiding you through the incorporation process.

How to change from sole trader to limited company UK

According to our team of tax accountants, there are two options for changing from sole trader to limited company - Option A and Option B.

Option A - Incorporation Relief

Incorporation relief can apply when a sole trader transfers their entire business to a limited company in exchange wholly or partly for shares. It is not automatic in all cases, specific conditions must be met, including the transfer of a going concern and all business assets (other than cash).

In this option, incorporation relief delays paying capital gains tax (CGT) if you transfer your sole trader business to a limited company in return for shares rather than cash.

Incorporation relief allows any capital gain arising on the transfer of the business to be deferred by reducing the base cost of the shares received. The deferred gain typically crystallises when those shares are later sold or otherwise disposed of.

Option B - Capital Gains Tax

On the contrary to Option A, the sole trader can decide against applying incorporation relief to their gain and, instead, pay CGT upfront.

In some cases, electing not to claim incorporation relief can result in part of the business transfer being treated as consideration other than shares (for example, a director’s loan account). This may allow tax-free extraction of funds up to the credited balance. However, the structure must be carefully implemented and supported by a robust valuation, as incorrect treatment can trigger additional tax charges or HMRC challenge.

In this case, the value of the sole trader business is calculated based on its tangible and intangible assets.

Business valuation is a tricky process for any business owner to contend with, yet it is naturally the first thing most owners want to know when selling. Get in touch with our business consultant today and to talk about getting an accurate valuation of your business.

Where incorporation relief is not claimed, Business Asset Disposal Relief (BADR) may apply to qualifying gains, reducing the CGT rate to 10% (subject to the current £1 million lifetime limit). Eligibility depends on the nature of the business and how the transfer is structured.

Advantages of incorporation

One of the key advantages is financial. A limited company can be more tax-efficient in certain circumstances, particularly where profits exceed basic personal income needs and can be retained or extracted strategically. However, the overall position depends on profit levels, extraction strategy, and administrative costs.

Whether a limited company is more tax-efficient depends on profit levels and circumstances, but it often starts to become more attractive once profits exceed roughly £40,000–£50,000, although this varies depending on how much income you need to draw personally and whether profits are retained in the business, particularly where profits can be retained or extracted efficiently.

By taking your remuneration as a combination of salary and dividends you could potentially take home more of your earnings than if you were a sole trader.

Fatter paychecks and greater flexibility

For example, a common approach is to take a salary at or around the personal allowance (£12,570 for 2025/26), with the remainder as dividends.

The dividend allowance is now £500 (2025/26), significantly reduced from previous years, so most dividends above this amount will be taxable.

Basic rate dividends are taxed at 8.75% (2025/26). For example, if dividends fall within the basic rate band, they are taxed at 8.75% (2025/26), after the £500 dividend allowance. The exact tax payable depends on total income, and examples should be calculated on a case-by-case basis to reflect salary, corporation tax, and available allowances.

Corporation tax is paid on company profits before dividends are distributed. Rates are now 19% for profits up to £50,000 and up to 25% for profits above £250,000, with marginal relief in between.

Corporation tax is paid on company profits before dividends are distributed. Any comparison with sole trader income must consider both corporation tax and personal dividend tax together, based on the company’s actual profit level.

Being a limited company also offers more flexibility in the way you manage your expenses. If you incur costs wholly and exclusively for business purposes (such as business travel), these may be deductible. However, everyday meals are not usually allowable unless they qualify as business travel subsistence under HMRC rules. You can also buy tools you need through your business to further increase its profitability.

It can also improve your business. Providing your services through a limited company is often seen as more professional as well as offering you greater financial protection if something goes wrong.

A limited company is a separate legal entity, so liability generally rests with the company rather than the individual. However, directors can still be personally liable in certain circumstances (for example, personal guarantees, wrongful trading, or breaches of duty).

Role of the accountant

There's more responsibility and paperwork to consider but much of this can be outsourced to a small business accountants, like us, who specialise in supporting new and existing limited companies. By plugging into our expertise, you can focus on the success of your business.

To find out more about going limited, or any other tax issue, get in touch and speak with one of our experts.