Moving from Sole Trader to Limited Company: A Step-by-Step Tax Guide

Moving from sole trader to limited company usually becomes worthwhile once profits consistently exceed around £50,000 a year, because that is where the ability to draw income as a mix of salary and dividends and to retain profits inside the company starts to outweigh the extra cost and admin. The decision is one of the most common turning points for a growing business, and the answer in a sole trader vs limited company UK 2026 comparison depends on your profit level, how much you need to draw, and your appetite for extra paperwork. Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice, guides self-employed clients through this decision and manages the transition end to end. This guide sets out the break-even point, the trade-offs, and the practical steps to incorporate.

Key Takeaways

• Incorporation typically starts to make financial sense once profits consistently exceed around £50,000 a year, though the benefit at that level is often modest.
• A sole trader is taxed on all profits each year through income tax and Class 4 National Insurance, whereas a company director can draw a salary plus dividends and leave surplus profit in the company.
• Dividend tax rates for 2026/27 are 10.75% at the ordinary rate, 35.75% at the upper rate and 39.35% at the additional rate, after a £500 dividend allowance.
• A private limited company gives limited liability, so personal assets are generally protected if the business runs into difficulty, unlike a sole trader.
• Directors typically take a salary of either £12,570 to use the full personal allowance, or £6,708, the Lower Earnings Limit for 2026/27, to secure a qualifying year for the state pension.
• Making Tax Digital for Income Tax now applies to sole traders with qualifying income above £50,000 from 6 April 2026, adding quarterly reporting that a company structure sidesteps.

When Should You Move from Sole Trader to Limited Company?

You should consider moving from sole trader to limited company once your profits consistently sit above around £50,000, but the tax saving at that level is often small and other factors can matter more. Below roughly £50,000, the extra costs of running a company frequently cancel out any tax advantage, so many sole traders are better staying as they are. If you are asking should I go limited, the honest answer at this level is usually not yet.

The question of whether you should go limited is not answered by tax alone. Limited liability, the credibility of a company name with larger clients, and the ability to bring in a co-owner or investor all pull in favour of incorporating. Against that sit higher accountancy fees, public filing at Companies House, and stricter rules on taking money out.

For a complete side-by-side analysis, see our guide to sole trader vs limited company.

How Do the Numbers Compare in 2026/27?

The tax comparison turns not on what the business earns but on how much the owner actually needs to draw, because a company lets you retain profit while a sole trader is taxed on everything. Consider a business making £60,000 of profit in 2026/27.

As a sole trader drawing all £60,000, income tax is roughly £11,432 (20% on £37,700, then 40% on £9,730) and Class 4 National Insurance is around £2,457 (6% then 2%), a combined bill of about £13,889, leaving £46,111.

As a limited company where the director extracts everything, a £12,570 salary triggers employer National Insurance of £1,136 (15% above the £5,000 threshold). The remaining £46,294 of profit bears corporation tax at 19%, around £8,796, leaving £37,498 to pay as dividends. After the £500 dividend allowance, those dividends are taxed at 10.75%, roughly £3,977. Total tax and NI is about £13,909, leaving the director around £46,091.

At £60,000 with full extraction the two are almost identical. The company only pulls clearly ahead when you can leave profit inside it, deferring personal tax until you draw the money in a later year.

What Changes in Admin, Liability and Pensions?

Incorporation increases your administrative burden but reduces your personal financial risk, and it changes how you build a pension. A sole trader files one Self Assessment return each year, whereas a limited company must file annual accounts and a confirmation statement at Companies House, a corporation tax return with HMRC, and run payroll for any salary.

The liability position is a genuine advantage of incorporation. A sole trader is personally liable for all business debts, so personal assets are exposed. A limited company is a separate legal entity, so the owner's liability is generally limited to the value of their shares, save where personal guarantees have been given.

Pensions work well through a company. Employer pension contributions are an allowable business expense for corporation tax and are not restricted by salary level in the way personal contributions are, making a company an efficient way to fund retirement from pre-tax profit.

One further change matters from 6 April 2026: Making Tax Digital for Income Tax now requires sole traders and landlords with qualifying income above £50,000 to keep digital records and file quarterly updates plus a final declaration by 31 January. Those above £30,000 join from April 2027 and those above £20,000 from April 2028. Incorporating removes the trade from Self Assessment and therefore from these quarterly obligations, though the company takes on its own filing duties instead.

How Do You Actually Incorporate Your Business?

To incorporate, you register a private limited company at Companies House, which currently costs £50 online, then move the trade across and tell HMRC. The company legally exists from the date on its certificate of incorporation.

After forming the company you should register it for corporation tax with HMRC within three months of starting to trade, open a business bank account in the company name, and transfer the existing trade and assets into the company. If you are VAT-registered as a sole trader, you can usually transfer the registration to the company as a Transfer of Going Concern. You will also need to set up payroll if taking a salary, notify HMRC that you are ceasing as a sole trader, and file a final Self Assessment return covering the period up to the change.

Timing the incorporation of a sole trader business, valuing goodwill on transfer, and choosing the right salary all have tax consequences, so advice before you file is worthwhile.

Frequently Asked Questions

At what profit level should I switch from sole trader to limited company?

Incorporation typically starts to make financial sense once profits consistently exceed around £50,000 a year, though the saving at that level is often small. The advantage grows as profits rise and as you leave more profit inside the company rather than drawing it all. Below around £50,000, the extra costs usually outweigh any tax benefit.

Is a limited company more tax-efficient than being a sole trader?

A limited company can be more tax-efficient than a sole trader, but only in certain circumstances. The main advantage comes from drawing income as a mix of salary and dividends and retaining surplus profit in the company to defer personal tax. Where an owner needs to extract all the profit each year, the difference in 2026/27 is often marginal.

What are the dividend tax rates for 2026/27?

For 2026/27, dividends are taxed at 10.75% at the ordinary rate, 35.75% at the upper rate and 39.35% at the additional rate, after a tax-free dividend allowance of £500. These rates rose from 6 April 2026, when the ordinary rate increased from 8.75% and the upper rate increased from 33.75%.

Does incorporating protect my personal assets?

Incorporating generally protects your personal assets because a limited company is a separate legal entity, so your liability is usually limited to the value of your shares. A sole trader, by contrast, is personally liable for all business debts. The protection can be lost where you give a personal guarantee, for example on a business loan or lease.

Will I still have to follow Making Tax Digital if I incorporate?

Incorporating removes your trade from Self Assessment, so you no longer file quarterly Making Tax Digital for Income Tax updates on that income. Making Tax Digital for Income Tax applies to sole traders and landlords with qualifying income above £50,000 from 6 April 2026. A limited company instead has its own filing duties, including annual accounts and a corporation tax return.

How Blue Tick Can Help

Blue Tick Accountants helps self-employed people decide whether to go limited, running the numbers on your actual profit and drawings rather than a rule of thumb, then handling the whole incorporation if it stacks up. The team manages company formation, the transfer of your trade, payroll set-up and your final Self Assessment return, so nothing falls through the gaps. Head to our website and book a meeting now.

Conclusion

The move from sole trader to limited company is worth serious thought once profits pass around £50,000, but the real advantage comes from retaining profit and drawing income tax-efficiently rather than from headline tax rates. Weigh the modest tax saving against extra admin, then set it against limited liability, pension flexibility and the end of quarterly Making Tax Digital reporting on your trade. Model your own figures before deciding, and take advice on timing and structure before you incorporate.

About the Author

This guide was written by Leon, founder of Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice that helps the self-employed, landlords and limited company owners across the UK make the right structural decisions. It was last reviewed for the 2026/27 tax year.

This article is intended for general informational purposes only and does not constitute tax, legal, or financial advice. Tax rules are subject to change and their application will depend on your individual circumstances. You should always seek advice from a qualified professional before taking action. Blue Tick Accountants accepts no liability for decisions made on the basis of this content.

Related reading: Sole Trader Liability vs Limited Company: The Protection You're Missing.