How to Set Up as a Sole Trader in the UK

Knowing how to set up as a sole trader in the UK starts with understanding when you need to register with HMRC, what records you must keep and how you will report and pay tax. A sole trader is self-employed and personally responsible for the business, but the setup process is usually simpler than forming a limited company.

This guide explains how to become a sole trader, the key steps involved in sole trader registration, your ongoing responsibilities with HMRC sole trader rules, and the advantages and disadvantages of operating as a sole trader so you can make an informed decision before starting your business. If you’d like wider context on how sole trader income fits into the UK tax system as a whole, our ultimate guide to personal tax in the UK covers income tax, reliefs and reporting obligations in more depth.

How to Set Up as a Sole Trader: Quick Checklist

What Is a Sole Trader?

A sole trader is an individual who owns and operates a business in their own name. Unlike a limited company, there is no legal separation between you and your business, meaning you are personally responsible for its profits, taxes and liabilities.

Many freelancers, consultants, contractors, tradespeople, online sellers and small business owners choose this structure because it is simple to establish and involves fewer reporting requirements than running a limited company. This structure is also common for people whose income started informally, for example, through online selling and paying tax on eBay or marketplace sales, or as a side project that has grown beyond a hobby. If your activity has reached that point, it’s worth reviewing whether income from hobbies is taxable before assuming sole trader registration is the right next step.

Content creators and influencers who monetise their audience through brand deals or platform payouts often face this exact transition. Our complete 2026 UK tax guide for content creators and influencers explains how that income is typically treated.

Is a Sole Trader the Same as Being Self-Employed?

A sole trader is self-employed, but “self-employed” is the wider description of someone who works for themselves rather than as an employee. A sole trader is one particular business structure used by a self-employed individual.

A sole trader is not a limited company. There is no separate legal entity between the owner and the business, so the owner is personally responsible for the business’s debts and tax obligations.

Does a Sole Trader Have a Company Registration Number?

No. A sole trader does not normally receive a Companies House company registration number because a sole-trader business is not incorporated as a company.

After registering for Self Assessment, HMRC will issue tax identifiers such as a Unique Taxpayer Reference where applicable, but this is different from a Companies House registration number.

Advantages of Setting Up as a Sole Trader

There are several benefits when you Set up as a Sole Trader, including:

• Quick and straightforward business setup.
• Complete control over business decisions.
• You keep all business profits after paying tax.
• Fewer administrative responsibilities than a limited company.
• Lower accountancy and compliance costs for many small businesses.
• Greater flexibility when managing your business.

Advantages and Disadvantages of Being a Sole Trader

Before deciding to Set up as a Sole Trader, you should also understand the potential drawbacks:

• • You have unlimited personal liability for business debts.
  • Your personal assets could be at risk if the business cannot meet its financial obligations.
  • Higher business profits may result in higher Income Tax and National Insurance contributions compared with other business structures.
  • You are solely responsible for managing records, tax returns and compliance.
  • Access to external investment may be more limited than for limited companies.

How to Become a Sole Trader

If you are considering how to become a sole trader, HMRC recommends following several key steps before you begin trading.

1. Decide whether the sole trader structure is right for your business.
2. Choose a suitable business name.
3. Understand which financial and business records you must keep.
4. Register as a sole trader with HMRC if required.
5. Determine whether VAT registration is necessary.
6. Budget for Income Tax and National Insurance contributions.
7. Seek professional advice where appropriate.

How to Register as a Sole Trader With HMRC

You register as a sole trader by registering for Self Assessment with HMRC. You normally need to register if your gross trading income is more than £1,000 in a tax year, although registration can also be required or useful in other circumstances.

If you need to submit a tax return for the previous tax year and have not previously registered, HMRC normally requires you to notify them by 5 October following the end of that tax year.

One of the most important steps is completing your sole trader registration. In most cases, you will need to register as a sole trader with HMRC if your gross trading income exceeds the £1,000 trading allowance during a tax year or if you otherwise meet the Self Assessment registration requirements.

Once registered, HMRC will issue you with a Unique Taxpayer Reference (UTR), allowing you to submit your annual Self Assessment tax return and report your business profits.

Do I Need a Business Bank Account as a Sole Trader?

A sole trader is not a separate legal entity from the individual running the business, so there is not generally the same legal requirement for a separate business bank account that applies to a limited company.

However, using a separate account for business income and expenses can make bookkeeping, tax returns and cash-flow management much easier. It can also prevent personal and business transactions becoming mixed together when preparing your accounts.

What Do You Need to Open a Sole Trader Business Account?

The exact requirements depend on the bank, but providers commonly ask for personal identification, proof of address and information about the business and its expected activity. Some accounts may also require your Unique Taxpayer Reference once HMRC has issued one.

Before opening an account, check the provider’s fees, transaction limits and whether its terms allow business use.

Your Tax Responsibilities

After you register as a sole trader, you will generally be responsible for:

• Submitting an annual Self Assessment tax return.
• Paying Income Tax on your taxable business profits.
• Paying National Insurance contributions where applicable.
• Maintaining accurate financial records.
• Keeping supporting evidence for business income and allowable expenses.

If you’re unsure whether these obligations apply in your specific case, our guide on who must send in a tax return sets out the full range of circumstances HMRC considers, while newly self-employed taxpayers can find a broader first-year overview of what to expect.

Planning for your future tax liabilities throughout the year can help avoid unexpected tax bills and improve your business cash flow.

Sole Trader National Insurance in 2026/27

For the 2026/27 tax year, self-employed people normally pay Class 4 National Insurance at 6% on profits above £12,570 up to £50,270 and 2% on profits above £50,270.

If profits are at least £7,105, Class 2 contributions are normally treated as paid to protect the individual’s National Insurance record without an actual Class 2 payment being required. Those with lower profits may choose to pay voluntary Class 2 contributions, which are £3.65 a week for 2026/27.

Making Tax Digital for Sole Traders in 2026/27

Making Tax Digital for Income Tax now applies to some sole traders. From 6 April 2026, sole traders with total qualifying income from self-employment and property above £50,000 must use MTD for Income Tax unless an exemption applies.

Those within scope need compatible software to:

• keep digital records of business income and expenses;
• send quarterly updates to HMRC; and
• complete their Income Tax reporting through compatible software.

The threshold is scheduled to reduce to more than £30,000 from 6 April 2027 and more than £20,000 from 6 April 2028.

Qualifying income for these thresholds is broadly the total income from self-employment and property before expenses, based on the relevant previous tax return.

Do You Need to Register for VAT?

You must normally register for VAT if your taxable turnover goes above £90,000 in a rolling 12-month period, or if you expect your taxable turnover to exceed £90,000 within the next 30 days. Businesses below the threshold can also choose to register voluntarily.

Depending on your taxable turnover and business activities, you may also need to register for VAT. Even if registration is not compulsory, some businesses choose to register voluntarily where it benefits their commercial circumstances or allows them to recover VAT on eligible business purchases.

Why Choosing the Right Business Structure Matters

Although many businesses successfully Set up as a Sole Trader, it is not always the most tax-efficient option as your business grows. Regardless of structure, though, the underlying question of whether you need to file a Self Assessment tax return remains relevant every year your circumstances change. Increasing profits, taking on employees or expanding operations may mean another business structure, such as a limited company, becomes more suitable. Reviewing your circumstances regularly can help ensure your business remains both tax-efficient and compliant with current HMRC sole trader requirements.