Thinking about becoming a sole trader? You’re not the only one. It’s the most straightforward way to get a business off the ground. As it gives you total freedom over your work and what you earn.
But the word “register” often makes people nervous. It sounds complicated yet in reality the process is quite straightforward once you know the steps.
This guide will walk you through everything you need to know about sole trader, including:
- What Is a Sole Trader,
- Why Become a Sole Trader,
- How Do I Register as a Sole Trader, and
- Much More..
Let’s get into it!
See Our Packages
What Is a Sole Trade?
A sole trader is a simple business setup where one person owns and runs everything. There is no legal difference between you and your business. This means you get to keep all the profits. But it also means you’re personally responsible for any business debts.
Why Become A Sole Trader?
The main reason is that it’s the easiest way to launch a business. The setup is fast and cheap. And there’s hardly any paperwork. This structure gives you total freedom.
It’s an ideal choice for freelancers, contractors and other small-scale entrepreneurs who want to test a business idea without a lot of hassle.
When You Need To Set Up As a Sole Trader?
You must register as a sole trader if:
- You earn more than £1,000 in a tax year from self-employment.
- You want to pay voluntary Class 2 National Insurance to qualify for benefits.
- You need proof of self-employment for things like childcare or mortgage applications.
- You work as a subcontractor under the Construction Industry Scheme (CIS).
How Do I Register Myself As A Sole Trader?
To register as a sole trader you must register for Self Assessment with HMRC. The most efficient way to register is online, but you can also do it by post or phone.
You will need your National Insurance number to register for Self Assessment. And if you do not have an NI number, you can apply for a National Insurance number.
Online Registration with HMRC
Here is a step-by-step guide on how to register as a sole trader:
- Gather Necessary Information: Before you start, you will need the following details:
- Your National Insurance number (NINO)
- Full name and date of birth
- Current home address and contact details
- The date you started self employment
- A description of the nature of your business/work
- Your business name (if you are using one other than your own name)
- Create a Government Gateway Account (if you don’t have one): Visit the GOV.UK website. Create a new account for HMRC’s online services. This will give you a user ID and password.
- Register for Self Assessment: Once logged in to your new or existing account, look for the option to “add a tax, duty or scheme” and choose “Self Assessment”. Follow the prompts to register as a sole trader and complete the online form. You will need to provide the information you gathered in step 1.
- Receive Your UTR Number: After submitting the form, HMRC will send you a letter containing your 10-digit Unique Taxpayer Reference (UTR) number and an activation code. The UTR number is essential for all future tax communications and filings, so keep it safe.
- Activate Your Online Account: Use the activation code sent in the post to activate your online account fully.
Other Registration Methods
- By post: Print the relevant form from the GOV.UK website and send it to the address on the form.
- By phone: Call HMRC on 0300 200 3310.
How Long Does It Take to Register as a Sole Trader?
The registration part online only takes around 10 to 20 minutes. What takes longer is receiving your UTR number in the post. Your UTR usually arrives within 10 working days (or up to 21 days if you’re abroad).
If you have not received your UTR within 15 (or 21 days), you can check when to expect it.
You can start working as a sole trader immediately. You do not have to wait for the UTR to begin trading.
See Our Packages
How Much Does it Cost to Register as a Sole Trader?
Registering as a sole trader with HMRC is completely free. The only costs you might face are:
- Accounting or bookkeeping software (optional but recommended).
- Professional advice or accountant fees.
- Insurance, if you choose to protect your business.
What Actually Changes After You Register as a Sole Trader?
So once you are officially a sole trader, here is what you need to get ready for:
You’re Now Responsible for Your Own Taxes
You will need to file a Self Assessment tax return each year. HMRC won’t automatically deduct tax from your income. So it is totally up to you to set money aside.
National Insurance contributions also become part of your yearly obligations.
Record Keeping Becomes Essential
Every invoice, receipt & expense matters. You will need to keep accurate records to calculate profits and claim allowable expenses.
Many sole traders use accounting software for this or hire an accountant to make this easier.
Business Identity
You can trade under your own name or a chosen business name. You may want to open a separate business bank account to keep finances clear.
Branding, website and marketing often become the next step once you are registered.
Access to Benefits and Support
As a registered sole trader, you can apply for business loans or grants. You can register for VAT if your turnover passes the threshold.
You will also be part of the Making Tax Digital system which requires digital record keeping from April 2026.
Personal Responsibility
- Unlike a limited company there is no legal separation between you and the business.
- This means you’re personally liable for debts but you also keep full control of profits.
What Happens If You Do Not Register (or Register Late)
- Missing the 5 October deadline for self assessment registration may result in penalties.
- Failing to file your tax return or pay on time can lead to late filing fines, interest, and more.
- Without proper registration, you may miss out on voluntary NIC contributions. This could hurt your benefits or State Pension later.
Advantages and Disadvantages of Being a Sole Trader
Advantages of being a sole trader
- Easy to set up
- Low running costs
- Profits go straight to you
- Fewer reporting requirements
- You keep full control of the business
- Simpler record-keeping compared to a limited company
Disadvantages of Being a Sole Trader
- Harder to raise investment
- You’re personally responsible for any business debts
- Your personal and business finances are tied together
- You may pay more tax once your profits reach higher levels
- Your business name isn’t protected in the same way as a limited company name
Can I Give My Sole Trader Business a Name?
Yes. You can. As a sole trader, you’re free to trade under your own name or pick a separate business name. Many people choose a name that feels more professional or better reflects what they do.
How Do I Register a Sole Trader Name?
As a sole trader, you do not officially register your business name with a central UK authority like Companies House.
You are legally trading as yourself (e.g., Jane Smith trading as “Jane’s Art Studio”).
Naming Rules and Guidelines:
- Use Your Name: You must include your personal name and address on official documents like invoices and your website if you trade under a business name that is not your own.
- No Restricted Words: Your name cannot contain sensitive words (like ‘Bank,’ ‘Royal,’ or ‘University’) without special permission.
- No Misleading Words: You cannot use words that suggest your business is a Limited Company (like ‘Ltd’, ‘Limited’, or ‘LLP’).
- Trade Mark Check: While not mandatory, it is highly recommended to search the UK Intellectual Property Office (UKIPO) trade mark register to ensure your chosen name is not already trademarked by another business. As this could lead to legal action against you later.
Your business name is simply a trading name. Not a legal entity.
What Records Do I Need to Keep?
You’ll need to keep:
- Records of all sales and income.
- Receipts and invoices for expenses.
- Bank statements.
- Mileage logs if you use a vehicle for business.
HMRC requires you to keep records for at least 5 years after the 31 January submission deadline.
What’s The Difference Between A Sole Trader And Self-Employed?
The two terms are related but not the same.
- Self-employed is a broad term that describes anyone who works for themselves instead of for an employer.
- Sole trader is a specific type of business structure, where one person owns and runs the business entirely.
In other words all sole traders are self employed. But not all self-employed people are sole traders. For example, a person who is self-employed but runs a limited company is not a sole trader.
How Much Tax Will I Pay as a Sole Trader?
The amount of tax you pay depends on your business profits (your total income minus your allowable expenses).
As a sole trader in 2025/26, you’ll pay:
1. Income Tax
You only pay tax if your total income is above your personal allowance (usually around £12,570).
The tax rates are calculated based on your total income:
| Taxable Income Band (England, Wales, NI) | Rate |
| £0 to £12,570 | 0% (Personal Allowance) |
| £12,571 to £50,270 | 20% (Basic Rate) |
| £50,271 to £125,140 | 40% (Higher Rate) |
| Over £125,140 | 45% (Additional Rate) |
2. National Insurance (NI)
You’ll pay:
Class 4 NI on your profits once they pass the annual threshold
Class 2 NI is voluntary at lower profits, but many people still pay it so their State Pension record stays healthy.
If your turnover exceeds £90,000, you must register for VAT too.
The Key Deadlines for Self Assessment
You’ll report your income for the tax year ending 5 April, and you’ll pay your tax bill in the following payments:
| Deadline | What it’s for |
| October 5th | Register for Self Assessment (if you haven’t before) |
| January 31st | Online Self Assessment tax return submission and final tax payment for the previous tax year. |
| January 31st | First Payment on Account (a prepayment towards next year’s bill). |
| July 31st | Second Payment on Account (the second prepayment). |
Tip: A good rule of thumb is to set aside 20 to 30 percent of anything you earn. So the tax bill doesn’t surprise you.
Are you looking for professional tech-savvy tax advisors and accountants in the UK to guide you? Contact us now!
The Bottom Line
Becoming a sole trader is an exciting step. And the registration process itself is manageable if you tackle it early. The most important thing is simply to tell HMRC you exist by registering for Self Assessment.
Once you have your UTR, focus on keeping clear records of all your income and expenses. Stick to the deadlines and you’ll be absolutely fine.
WE CAN HELP
If you need help with your registration or any other accounting services, visit Accotax. We offer a range of packages designed to fit your unique needs.
Reach out, get an instant quote and let us help you stay compliant!
Disclaimer: All the information provided in this article on How Do I Register as a Sole Trader? including all the texts and graphics, is general in nature. It does not intend to disregard any of the professional advice.