How to Change from Sole Trader to Limited Company in the UK: 7-Step Guide (2026)

Moving from sole trader to limited company UK means incorporating a new legal entity with Companies House, telling HMRC you have stopped being self-employed, and shifting your contracts, VAT, and bank accounts across to the company. Most founders make the switch once profits pass roughly £40,000 to £50,000 a year, when the tax maths and limited liability start to pay off. This guide walks you through all 7 steps, including the new identity verification rules that became mandatory in November 2025.

It also covers something the big UK accountancy blogs skip: how a non-resident founder living outside the UK can do this properly. If that’s you, keep reading.

Why sole traders switch to a limited company

Three reasons drive almost every switch.

Tax. As a sole trader you pay Income Tax on every pound of profit. Once you cross £50,270 you hit the 40% higher rate. A limited company pays Corporation Tax instead, which starts at 19% on profits under £50,000. You then take money out as a mix of salary and dividends, which is usually more efficient at higher profit levels.

Limited liability. A sole trader and their business are the same legal person. If the business owes money, you owe money, and your personal assets are exposed. A limited company is separate. Your risk is normally capped at what you put in.

Payment and banking access. Stripe, Payoneer, Wise Business, and most UK business banks treat a registered limited company far more seriously than an individual trading under their own name. For founders outside the UK, a Ltd is often the only clean route into UK payment processing at all.

Sole trader vs limited company UK: key differences at a glance

The public record point matters. As a company director your name and appointment sit on the Companies House register. If ownership is shared, read up on how UK company shareholders work before you file.

When is the right time to switch?

There is no legal rule that forces the change. It’s a judgement call. These signals usually mean the timing is right:

• Profits consistently over £40,000 to £50,000. This is where you approach the 40% higher rate as a sole trader, and where the Corporation Tax plus dividend route starts winning.
• You want limited liability. Taking on suppliers, staff, or larger client contracts raises your personal risk.
• You want outside investment. Investors buy shares. Sole traders have none to sell.
• You need better payment and banking terms. Especially true for e-commerce and SaaS founders applying to Stripe.
• You want to avoid MTD ITSA. From April 2026, sole traders earning over £50,000 face Making Tax Digital for Income Tax Self Assessment, with quarterly digital submissions. A limited company sits outside that regime.

If none of these apply yet, staying a sole trader is fine. Don’t incorporate for the sake of it.

7 steps to change from sole trader to limited company in the UK

Here’s the full process. Follow it in order.

Step 1: Choose and register your company name

Pick a name that isn’t already taken and doesn’t use restricted or sensitive words. Check availability on the Companies House name checker before you commit. Your company name can differ from your old sole trader trading name, but keeping brand continuity helps if you’ve built goodwill.

You’ll also choose a Standard Industrial Classification code that describes what you do. If you’re unsure which one fits, our guide on choosing your SIC code spells it out.

Step 2: Incorporate with Companies House (Form IN01, cost, timeline)

Incorporation is done through Form IN01. You can file it directly on the Companies House Web Incorporation Service for £100 (the fee increased on 1 February 2026), or use a formation agent who bundles extras like a registered address and documents.

You’ll supply:

• Company name and registered office address in the UK
• At least one director
• Details of shareholders and share capital
• Details of any person with significant control
• Your SIC code

Online filings are usually approved within 24 hours. For the full breakdown, see our walkthrough on how to register a company in the UK. If you’re outside the UK and don’t have a registered office, our LaunchPad formation package includes one.

Step 3: Complete Companies House identity verification (mandatory since November 2025)

Since November 2025, identity verification (IDV) is mandatory for all company directors and people with significant control. You get a personal code that ties your verified identity to your Companies House record. No verified code, no valid appointment.

You can verify through GOV.UK One Login using the app, or through an Authorised Corporate Service Provider (ACSP). Non-resident directors can use either route. Our full walkthrough on Companies House identity verification covers the steps.

Not sure whether you count as a PSC? Check our guide to the person with significant control (PSC) rules, because most founders who own more than 25% of shares do.

Step 4: Notify HMRC you have stopped being a sole trader

You must tell HMRC you have stopped trading as self-employed. Do this through your HMRC online account. You’ll then file a final Self Assessment tax return covering the period up to the date you ceased trading as a sole trader.

Miss this and HMRC keeps expecting sole trader returns from you. That’s one of the most common and most annoying mistakes on this list.

Step 5: Register the company for Corporation Tax (within 3 months)

Your new limited company must register for Corporation Tax with HMRC within 3 months of starting to trade. “Starting to trade” means buying, selling, advertising, renting property, or employing someone.

You’ll need your company registration number, the date you started trading, and your accounting reference date. Corporation Tax runs at 19% on profits under £50,000 and rises to 25% on profits above £250,000, with marginal relief in between.

Step 6: Transfer your VAT registration (Form VAT 68 / TOGC rules)

If you were VAT registered as a sole trader, you have two choices. Cancel and re-register under the company, or transfer the existing VAT number to the company using Form VAT 68 alongside the company’s VAT1 application.

Transferring the whole business usually qualifies as a Transfer of a Going Concern (TOGC), which means no VAT is charged on the transfer of assets between you and the company. That saves cash flow and paperwork.

VAT rules are fiddly. If you’d rather hand it off, our VAT registration service handles it for you.

Step 7: Transfer contracts, IP, business assets, and open a business bank account

The company is a new legal person, so nothing carries over automatically. You need to:

• Novate contracts. Move client and supplier agreements from you personally to the company. A novation replaces you with the company as the contracting party.
• Assign intellectual property. Transfer trademarks, domain names, and copyright to the company in writing.
• Transfer assets. Move equipment, stock, and any goodwill across, and record it properly in the company’s books.
• Open a business bank account. The company must have its own account. Do not run company money through your personal account.

For non-resident founders, opening UK business banking is the sticking point. Packages like ProLaunch include access to banking and payment partners so you’re not stuck at this final step.

Tax implications of switching

The core shift is from Income Tax to Corporation Tax.

As a sole trader, all profit is taxed as income: 20% basic, 40% between £50,271 and £125,140, and 45% above that. As a company, profit is taxed at 19% to 25% Corporation Tax first. You then extract money in two ways:

• Salary. A modest salary is a deductible expense for the company and can use your personal allowance.
• Dividends. Paid from post-tax profit, taxed at lower dividend rates than salary, with a small tax-free dividend allowance.

The combination usually beats sole trader Income Tax once profits are well into the higher-rate zone. Add the 2026 factor: Making Tax Digital for Income Tax Self Assessment lands in April 2026 for sole traders earning over £50,000. That means quarterly digital updates and extra software costs. A limited company avoids MTD ITSA entirely.

For the numbers on rates and thresholds, HMRC publishes the current figures on GOV.UK. Once you’re running a company, ongoing filings pile up fast, so many founders use our accounting and bookkeeping service to stay compliant.

Can a non-resident founder make this switch?

Yes. You don’t need to live in the UK, hold a visa, or be a British citizen to own and run a UK limited company. There’s no residency requirement for directors or shareholders.

Three things make it work for non-residents:

• IDV personal code. Complete identity verification through GOV.UK One Login from anywhere, or use an ACSP to verify on your behalf.
• A UK registered office address. Your company must have one. A formation service provides this, so you don’t need a UK premises.
• A formation service that supports non-residents. Most of the well-known UK accountancy firms assume you’re already based here. That’s the gap we built for.

The Digital Pro Suite bundles an enhanced address, Tide banking access, and ongoing support, which covers the practical hurdles a founder abroad hits.

Common mistakes when switching

Avoid these and the process stays clean:

• Bad timing. Incorporating mid-year without a plan splits your income across two tax regimes messily. Line up your cessation date and start date.
• Leaving your sole trader tax position open. Forgetting to tell HMRC you’ve stopped, or skipping the final Self Assessment return, triggers reminders and penalties.
• Not novating contracts. If clients keep paying you personally instead of the company, HMRC may treat that income as yours, not the company’s.
• Running money through your personal account. The company’s finances must be separate from day one.
• Skipping IDV. Since November 2025, an unverified director can’t be validly appointed. Sort the personal code early.
• Mishandling VAT. Missing the VAT 68 transfer or the TOGC treatment can cost you unnecessary VAT on the transfer.

FAQ

How do I change from sole trader to limited company in the UK?

Register your company with Companies House on Form IN01, complete identity verification, tell HMRC you’ve stopped being a sole trader, register the company for Corporation Tax within 3 months, transfer any VAT registration, and move your contracts, assets, and bank account to the company.

When should I switch from sole trader to limited company?

Most founders switch once profits consistently pass £40,000 to £50,000 a year, where you approach the 40% higher rate of Income Tax. Wanting limited liability, outside investment, or better payment processor access are also common triggers.

How much does it cost to set up a limited company?

Companies House charges £100 to incorporate online as of February 2026. Using a formation agent typically bundles the government fee with extras like a registered address and pre-checked documents.

Do I need to tell HMRC I’ve stopped being a sole trader?

Yes. You must notify HMRC through your online account and file a final Self Assessment tax return covering the period up to the date you ceased trading as a sole trader.

Can I keep my VAT number when I incorporate?

Yes. Use Form VAT 68 alongside the company’s VAT1 application to transfer your existing VAT number. Transferring the whole business usually qualifies as a Transfer of a Going Concern, so no VAT is charged on the transfer of assets.

Can a non-resident set up a UK limited company?

Yes. There is no residency requirement for directors or shareholders. You need a UK registered office address, and you must complete Companies House identity verification through GOV.UK One Login or an Authorised Corporate Service Provider.

What is Companies House identity verification?

Since November 2025, all directors and people with significant control must verify their identity and obtain a personal code. Without a verified code, an appointment is not valid. You can verify via the GOV.UK One Login app or through an ACSP.