Sole trader or limited company for your shop?

The short answer: if your online shop pays you a living income and you take the profits out each year, sole trader status keeps more of them. At 2025/26 rates, extracting profits as a £5,000 salary plus dividends costs more in combined Corporation Tax, dividend tax and employer National Insurance than Self Assessment on the same money. The £30,000 to £40,000 threshold most guides quote no longer holds. The limited company's real advantages are liability cover, B2B credibility and leaving money in the business at 19% to 25% Corporation Tax. Use the worked table to check your own profit level, then run the three-question test in the final section.

Most shop owners asking this are not really asking about legal structures. They want to know which one costs less in tax. The honest answer for a one-person shop taking its profits out is that the sole trader wins, and the gap has widened.

There are over 3 million sole traders in the UK, making it the most common business type, according to Business.gov.uk. Only 37% of UK businesses are limited companies. The Office for National Statistics counted 2.73 million VAT and PAYE businesses as of March 2025. Companies made up 76.7% of them, while sole proprietors and partnerships together fell to 19.8%.

Heads up: this guide uses Shopify affiliate links. Sign up through one and we are paid a commission, and you pay exactly the same as you would otherwise.

Shopify plans, pricing and features change; always verify the current details on shopify.com before deciding.

If you are building on Shopify, the platform does not care which you pick. The setup steps in our Setting up a Shopify shop in the UK: the full guide apply to both. You might also want to understand what Shopify is and how it works in the UK before deciding, or compare Shopify plans for a UK shop.

What you actually keep at £30,000, £50,000 and £100,000

This is where the thesis holds or falls. The table uses 2025/26 rates: Personal Allowance of £12,570 and Income Tax at 20% basic and 40% higher. Class 4 NI is 6% on profits between £12,570 and £50,270 and 2% above. Corporation Tax is 19% under £50,000 of profit, confirmed in the OECD's Corporate Tax Statistics 2026. Dividend tax runs at 8.75% basic and 33.75% higher, with a £500 allowance. The Ltd column assumes a £5,000 director salary, which sits at the employer NI threshold so no employer NI is due. Class 2 NI is no longer payable by most sole traders since April 2024. No other income is assumed. These are HMRC's published rates, checked on 6 August 2026.

Read it left to right. At £30,000 profit, the sole trader takes home £25,468. The Ltd director extracting everything gets £24,184. That is £1,284 less.

The gap widens with profit. At £50,000, the sole trader keeps £40,268 against the Ltd's £38,967. At £100,000, the difference stretches to £2,158.

The third column changes the picture. If the Ltd retains half its post-tax profit, the director's personal take-home drops sharply but £37,834 sits in the company at a 19% to 20% effective rate. That money is taxed, not yours to spend. It proves the thesis: the 19% headline rate only pays when you leave money in.

Our take: for a one-person shop pulling out its profits each year, the sole trader wins at every profit level we modelled. The limited company only beats it when you can leave £20,000 or more in the business, because that is where the 19% Corporation Tax rate does something for you. If you need the money to live on, incorporate for liability or credibility, not for tax.

The ecommerce expenses both structures can claim

A common myth says the limited company opens up deductions the sole trader cannot reach. It does not. Stock, packaging, postage, platform fees, payment processing and advertising are deductible for both structures. The tax treatment differs in detail, not in kind.

Your Shopify subscription is a business expense whether you are a sole trader or a Ltd. The same goes for Shopify Payments in the UK or any other gateway. If you want to understand how Shopify works for a UK shop owner, the platform fees are the same either way. Royal Mail and courier costs reduce taxable profit in both structures.

The £1,000 trading allowance is different. It is a sole-trader-only relief: if your turnover is below £1,000, you pay no tax at all. Above £1,000, you can deduct £1,000 instead of actual costs. A limited company cannot use it.

This makes the sole trader route cheaper at low profit, not just at high profit. The Ltd does not widen its tax lead on shop-specific costs, because the costs are the same.

Why limited liability, credibility and an exit plan matter more than tax

If tax does not make the case for incorporation, what does? Three things.

Liability. A sole trader and the business are the same legal entity. If the shop is sued or cannot pay its debts, your personal assets are on the line. A limited company is separate, so your liability is generally capped at what you invested. This is not absolute. Directors often sign personal guarantees for leases or loans, which pierces the cap. For a shop selling physical products, product liability is a genuine risk. A digital products shop carries less of this risk.

Credibility. Some suppliers, wholesalers and B2B customers prefer or require a limited company. A Ltd files public accounts, which lets a supplier check your turnover before offering credit terms. The ONS found that 44.0% of the 2.1 million companies in the UK are single-employee limited companies, so you would not be unusual.

An exit plan. If you want to sell the business, a limited company is a cleaner vehicle. You can sell shares rather than assets, which is simpler and can be more tax-efficient. A sole trader can sell too, but the process is messier.

The mortgage point. Lenders accept both structures. A Ltd director usually needs two to three years of filed accounts to prove income. A sole trader can use SA302 forms from HMRC. Both take time. Neither is inherently easier.

Admin costs that erase the tax gap

The tax gap between sole trader and Ltd is small. The admin gap is not.

A sole trader files one Self Assessment return a year. If your records are clean, you can do it yourself for free. An accountant charges £100 to £200 if you prefer.

A limited company files annual accounts, a Corporation Tax return, a confirmation statement and payroll submissions under RTI. An accountant for a small Ltd typically charges £300 to £600 a year. Add the confirmation statement fee, payroll software and a business bank account, and you are near £1,000 a year.

That £1,000 is the hurdle. The Ltd's tax saving must clear it before the structure pays. At £30,000 profit, the tax difference was £1,284. After £1,000 of admin costs, the case is nearly a wash.

Privacy. Companies House makes your name, address and filed accounts public. A sole trader's finances stay private. From 18 November 2025, directors and people with significant control must verify their identity with Companies House, with the requirement phased in over 12 months. Companies House estimates 6 to 7 million people will need to verify by mid-November 2026.

When a limited company genuinely wins

The thesis is not that incorporation is always wrong. It is that incorporation for tax savings on extracted profits is wrong. Four situations change the answer.

Retaining profits. If you can leave £20,000 or more in the business each year, the 19% Corporation Tax rate beats paying 40% Income Tax on the same money as a sole trader. The money stays in the company. You take it later, perhaps in a lower-earning year.

Paying a spouse. If your spouse is a shareholder, you can split dividend income and use two sets of personal allowances and dividend allowances. This is legitimate but scrutinised by HMRC. The shares must reflect genuine ownership, not just a tax arrangement.

Investors. You need a company to issue shares. A sole trader cannot do this.

Selling. Selling shares in a company is cleaner than selling a sole trader business.

The trend is real. The ONS reported the number of sole proprietors decreased by 4.1% between March 2024 and March 2025, while companies increased by 1.8%. More shop owners are incorporating, but the tax math for extraction has not improved. Digital vs physical matters too. A digital products shop has less liability and stock risk, so sole trader status stays right for longer.

VAT, OSS and the hidden costs of closing down

The VAT registration threshold is £90,000 for both structures, according to Stripe's UK VAT threshold guidance. The choice makes no difference to the threshold, but it affects what happens when you incorporate mid-stream.

A sole trader's VAT registration cannot simply transfer to a new limited company. You need a fresh registration or a VAT68 form to transfer the existing number. The process can take weeks. Our VAT on a Shopify shop: a UK guide covers the registration steps.

Selling to the EU. OSS and IOSS VAT schemes apply to both structures. The One Stop Shop lets you report EU VAT in a single quarterly return instead of registering in each member state. Whether you are a sole trader or a Ltd, the rules are the same.

Making Tax Digital. Sole traders face MTD for Income Tax from 6 April 2027 if turnover exceeds £30,000, according to HMRC. Businesses above £50,000 should already have signed up. The threshold drops to £20,000 from 6 April 2028. Limited companies are outside MTD for Income Tax.

Closing down. A sole trader stops by filing a final Self Assessment. Closing a limited company means striking it off, which costs £13 and requires the company to be debt-free. If assets exceed £25,000, you need a formal liquidation. Personal guarantees do not disappear on strike-off.

How to decide in one afternoon

Three questions. Answer them honestly and the structure picks itself.

1. Do you need the profits to live on each year? If yes, the sole trader keeps more at every profit level we modelled.
2. Can you leave £20,000 or more in the business each year? If yes, the 19% Corporation Tax rate on retained profit beats 40% Income Tax.
3. Do you need liability cover, B2B credibility or an exit plan? If yes, incorporate regardless of tax.

If you answered no to all three, stay a sole trader. If you answered yes to question 2 or 3, talk to an accountant. The fee is genuinely worth it when you are switching mid-year, arranging spouse dividends or sitting near the £90,000 VAT threshold.

Here is our suggested decision checklist you can copy:

Sole trader or limited company — decision checklist
[ ] I need the shop's profits to live on each year
[ ] I can leave £20,000+ in the business annually
[ ] I sell physical products with liability risk
[ ] My suppliers or customers require a Ltd
[ ] I plan to sell the business within 5 years
[ ] I want to bring in investors or a partner

If only the first box is ticked: sole trader.
If box 2 or any below it is ticked: talk to an accountant.

The monthly cost of running a Shopify shop is the same either way. The tax and admin are not.

Frequently asked questions

How much tax would I save as a limited company at £50,000 profit?

You would not save. You would pay more. At £50,000 profit, a sole trader takes home £40,268 after Income Tax and Class 4 NI. A Ltd director extracting everything via £5,000 salary and dividends takes home £38,967. The company also owes £8,550 in Corporation Tax before you extract a penny personally. The Ltd only wins if you retain at least half the post-tax profit in the company.

Can I switch from sole trader to limited company later?

Yes, and it is common. You incorporate, transfer assets and contracts to the new company, and notify HMRC. The VAT number needs a VAT68 transfer or a fresh registration, which can take several weeks. Marketplaces like Amazon may hold your seller account during the transition, so plan the switch during a quiet sales period.

Does Making Tax Digital affect sole traders and limited companies differently?

Yes. MTD for Income Tax applies to sole traders from 6 April 2027 if turnover exceeds £30,000, with the threshold dropping to £20,000 from 6 April 2028. MTD requires quarterly updates to HMRC, not just an annual return. Limited companies are outside MTD for Income Tax entirely, though they already handle MTD for VAT.

What happens if my limited company shop fails?

Closing a Ltd costs more than stopping as a sole trader. Striking off costs £13 and requires the company to be debt-free. Any director's loan account must be repaid before strike-off. Personal guarantees on leases or loans survive the closure. A sole trader simply files a final Self Assessment and stops.

Is the £1,000 trading allowance worth anything for an online shop?

It is, but only at very low turnover. If your shop's income is below £1,000 a year, you pay no tax at all. Above £1,000, you can deduct a flat £1,000 instead of actual expenses. The allowance is per taxpayer per year, not per business, so if you run two sole trader ventures you still only get one £1,000 allowance across both.

Do I need a separate bank account as a sole trader?

Legally, no. A sole trader can use a personal current account. A limited company must have a separate business account. In practice, most sole traders open a business account anyway, because it keeps shop transactions clean for Self Assessment and makes MTD reporting simpler when it arrives.

Sources

1. HM Revenue & Customs, "Making Tax Digital for Income Tax". https://makingtaxdigital.campaign.gov.uk/ — checked on 26 August 2026
2. Companies House, "Making identity verification simple, secure and trusted". https://companieshouse.blog.gov.uk/2025/10/16/making-identity-verification-simple-secure-and-trusted/ — checked on 26 August 2026
3. Office for National Statistics, "UK business; activity, size and location: 2025". https://www.ons.gov.uk/businessindustryandtrade/business/activitysizeandlocation/bulletins/ukbusinessactivitysizeandlocation/2025 — checked on 26 August 2026
4. Business.gov.uk, "Comparing business structures". https://www.business.gov.uk/support/business-structures-governance-and-ethics/comparing-business-structures/ — checked on 26 August 2026
5. OECD, "Corporate Tax Statistics 2026". https://www.oecd.org/content/dam/oecd/en/publications/reports/2026/07/corporate-tax-statistics-2026_b8101038/73af6222-en.pdf — checked on 26 August 2026
6. Stripe, "What is the UK VAT threshold? What businesses need to know". https://stripe.com/gb/resources/more/what-is-the-uk-vat-threshold-what-businesses-need-to-know — checked on 26 August 2026