Incorporating Your Sole Trader Business: How to Transfer to a Limited Company

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Last updated 23 October 2026. Written by the Limited Company Accountant UK team, part of Accotax. Figures are for the 2026/27 tax year; always check GOV.UK for the latest rates.

Short answer: To incorporate a sole trader business, you form a limited company, transfer the business and assets to it, tell HMRC and your clients, and close your sole trader accounts. Incorporation relief can defer Capital Gains Tax when you transfer the business for shares, so the move can be tax-neutral if done correctly.

Key facts

Incorporation relief	Defers CGT if transferred for shares
VAT	Transfer as going concern may be outside scope
Contracts	May need novating to the company
Cessation	Final sole trader return and accounts
Timing	Often at tax year end or accounting date

Why sole traders incorporate

Many sole traders move to a limited company as their profits grow. A company is a separate legal person, so the owner’s liability is limited, and profits can be taxed at Corporation Tax rates of 19% to 25% rather than income tax up to 45%. The owner can choose how and when to take money out through salary and dividends, and may find it easier to win bigger clients or raise finance.

There are also drawbacks. A company has more admin and public filing obligations, and extracting profit is taxed twice, once in the company and once personally. The move is worthwhile when the savings and benefits outweigh the extra cost and complexity, which usually occurs when profits are comfortably above what you need to live on.

Step 1: set up the company

Begin by incorporating the company with Companies House, choosing a name and an accounting reference date, and registering it for Corporation Tax. Verify your identity as a director. Open a business bank account, and set up accounting software and payroll if you will pay a salary.

Timing matters. Many people choose to incorporate at the start of a tax year or accounting period, to keep the tax calculations clean. Talk to your accountant first, because the date can affect how much overlap relief or tax you pay in the final sole trader period.

Step 2: transfer the business

There are two main ways to transfer the business. You can sell it to the company for cash or a loan account, or transfer it in exchange for shares. If you transfer for shares and meet the conditions, incorporation relief under section 162 of the Taxation of Chargeable Gains Act applies automatically, and the capital gain is deferred by reducing the base cost of the shares.

Assets that can be transferred include goodwill, equipment, stock, vehicles and contracts. Each asset should be valued at market value and documented in an incorporation agreement. Goodwill has a tax value, which can matter if you take a loan account credit.

Step 3: VAT, PAYE and other registrations

If you are VAT-registered, the company will usually need its own VAT number, though the transfer of a going concern can be outside the scope of VAT if the conditions are met. You can ask HMRC to transfer your existing VAT registration to the company, which preserves your number, or register the company separately. Do not forget to deregister the sole trader if needed.

If you have employees, TUPE rules may transfer them to the new company, and you will need to register the company as an employer. Update your insurance, licences, and any trade body memberships to the company’s name.

Step 4: contracts, clients and suppliers

Contracts held in your own name may need to be assigned to the company, with the agreement of the other party. Tell clients about the change, update your invoices to show the company name, number and registered address, and provide new bank details. Suppliers and landlords may also need notice.

Check any contracts that include personal guarantees or restrictions on assignment. Keep a record of who has been notified and when.

Step 5: closing the sole trader business

When the business transfers, you cease to trade as a sole trader. You must tell HMRC and file a final Self Assessment return for the period to the cessation date. You will pay any income tax and Class 4 National Insurance due on the final profits, and you must keep your records for the usual period.

Be careful about the timing of the final period. Depending on your accounting date, the transition can create an overlap of profits, so planning with an accountant helps to avoid paying tax twice on the same income.

Capital allowances, stock and tax points

Assets you transfer to the company may carry capital allowances. If you sell them to the company, a balancing charge can arise on the sole trader’s side, while the company can claim allowances on the price paid. It is often best to elect that the transfer takes place at tax written down value, which avoids a charge, or to have the company claim as appropriate.

Stock transfers at market value, and the value affects both parties’ profits. Seek advice on valuations, because HMRC can challenge a price that is out of line with the market.

Is incorporation right for you?

Before you decide, compare your tax as a sole trader with your expected tax as a company owner. The comparison depends on your profits, other income, how much you need to withdraw and your plans. At very low profits, the sole trader route can be cheaper. As profits rise, the company usually becomes more efficient.

Also think about the non-tax factors, such as limited liability, credibility with larger clients, and the ability to bring in partners or investors. A short projection from an accountant can show the likely difference before you commit.

Timing the move to a limited company

The right moment to incorporate depends on profit, cash needs and the tax year. Many people move once profits comfortably exceed what they need to live on, because only then can a company’s lower tax rates and retained profits help. Moving at the start of a tax year can make the sole trader and company periods easier to separate, though it is not essential. Think about VAT too: if you are already registered, you will need to transfer the registration or register the company. Also consider seasonal cash flow, as there may be a short period while the new bank account and systems are being set up. A planned handover is smoother than a rushed one.

Telling customers, suppliers and HMRC

Once the company exists, tell customers and suppliers that you now trade as a limited company, giving the company name, number, registered office and VAT number if relevant. Invoices must show the correct company details from the first day of trading. Update insurance, licences, contracts and bank mandates. Inform HMRC that your sole trader business has ceased by submitting final figures on your Self Assessment return, and make sure the company is registered for corporation tax and, if you will employ yourself, PAYE. Keeping a checklist of every organisation that needs the new details prevents payments going to the wrong account or contracts remaining in your personal name.

Common mistakes when incorporating

Typical mistakes include trading in the company name before the company is registered, mixing personal and business money after the transfer, forgetting to move contracts and licences, and not recording the value of assets transferred. Others overlook the final sole trader tax return, or fail to plan for payments on account that still fall due. Some also forget that a company needs its own bookkeeping, accounts and confirmation statement. Most of these are easy to avoid with a simple plan and a timetable agreed with your accountant before you start.

Frequently asked questions

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