How to Become Self-Employed in the UK: A Step-by-Step Guide

Becoming self-employed in the UK means choosing a business structure, registering with HMRC, keeping records and paying your own tax and National Insurance. Here are the steps, the deadlines, VAT and Making Tax Digital, insurance, pricing, invoicing and finding work.

By Tony Musso on Thu Oct 22 2026

Becoming self-employed in the UK is more straightforward than many people expect. For most sole traders it means telling HMRC, keeping good records and filing a tax return once a year. The hard parts are usually finding steady work, pricing it properly and putting money aside for tax.

This guide takes you through it step by step: choosing a structure, registering, how tax and National Insurance work, records and Making Tax Digital, VAT, insurance, banking, pricing, invoicing and finding clients.

Step 1: Check you will really be self-employed

You are self-employed if you run your own business and are responsible for its success or failure: you decide how, when and where to do the work, you can usually send someone else to do it, you set your prices, you can work for several clients and you bear the risk if something goes wrong.

If a single "client" controls your hours, supervises you and treats you like staff, you may legally be an employee or a worker, with rights to holiday pay and the minimum wage. Calling someone self-employed doesn't make it so. GOV.UK has a guide to employment status if you are unsure.

You can be self-employed and employed at the same time. Many people start a business on evenings and weekends while keeping a job, paying tax on their salary through PAYE and on their business profit through Self Assessment.

Step 2: Choose sole trader or limited company

Most people start as a sole trader because it is quick, cheap and simple. A limited company can make sense as profits grow or if a client insists on it, but it brings more admin and the tax comparison depends on your figures. Speak to an accountant before switching. If you run a company you must register for Corporation Tax within three months of starting to do business.

There are also partnerships, where two or more people run a business together and each partner files their own return.

Step 3: Register with HMRC

As a sole trader you register for Self Assessment through GOV.UK. You will need a Government Gateway account, and HMRC will send you a Unique Taxpayer Reference (UTR).

The deadline is 5 October after the end of the tax year in which you started. Tax years run from 6 April to 5 April. For example, if you start trading in November 2026:

• that falls in the 2026/27 tax year, which ends on 5 April 2027
• you must register by 5 October 2027
• your first online tax return and payment are due by 31 January 2028

You don't need to register if your total self-employed income (before expenses) is £1,000 or less in a tax year, because of the trading allowance. If you earn more than that, you register, and you can usually choose either to deduct the £1,000 allowance or your actual expenses, whichever is better.

Registering early costs nothing and avoids a rush. Your business can trade under your own name or a business name, but it can't include "limited" or "Ltd", and some sensitive words need permission.

Step 4: Understand your tax and National Insurance

As a sole trader you pay tax on your profit: your income minus allowable business expenses.

• Income Tax. Your profit is added to any other income. You get the same personal allowance and tax bands as an employee. Our guide to how tax works in the UK explains the 2026/27 bands.
• Class 4 National Insurance is paid on profits above £12,570. The main rate has been 6% since April 2024, with a lower rate on profits above £50,270. Check GOV.UK for the current year's rates.
• Class 2 National Insurance. Since April 2024, if your profits are above the Small Profits Threshold you no longer pay Class 2, but you still get National Insurance credits towards your State Pension. If your profits are below it, you can choose to pay voluntarily to protect your record. Check GOV.UK for the current threshold.

Allowable expenses are costs you have wholly and exclusively for the business, such as stock, materials, tools, software, a share of phone and internet costs, and business travel. You can't claim for personal spending or ordinary commuting. GOV.UK lists what is allowable and offers simplified flat rates for some costs, such as vehicles and working from home.

Payments on account. Once your yearly tax bill is more than £1,000 (unless most of your tax is already taken at source), HMRC asks you to pay towards next year's bill in advance, in two instalments on 31 January and 31 July, each usually half of your last bill. In your first year this can mean paying one and a half years' tax at once. If your first bill is £4,000, for example, you could owe £6,000 on 31 January (the bill plus a £2,000 payment on account), then another £2,000 on 31 July.

The simplest habit is to move a share of every payment you receive into a separate savings account for tax.

Step 5: Keep records and get ready for Making Tax Digital

Keep a record of every sale and every business expense, with receipts and invoices. You must keep your records for at least five years after the 31 January deadline for the tax year they relate to.

Making Tax Digital for Income Tax changes how many sole traders and landlords report. It started in April 2026 for people with qualifying income over £50,000, and is due to extend to those over £30,000 from April 2027. Qualifying income is your total income from self-employment and property, before expenses. If you are in it, you keep digital records in compatible software, send HMRC quarterly updates and then file a final return. If you are starting out with lower income, using simple bookkeeping software from day one makes the move easier later. Check GOV.UK to see if and when it applies to you.

Step 6: Know when to register for VAT

You must register for VAT if your VAT-taxable turnover goes over £90,000 in any rolling 12-month period, or you expect to go over it in the next 30 days alone. The threshold has been £90,000 since April 2024. It is based on turnover, not profit. You can also register voluntarily below the threshold, which can help if your customers are mainly VAT-registered businesses. Check GOV.UK for the current threshold.

Step 7: Set up banking, insurance and permissions

• Bank account. Sole traders don't legally need a separate business account, but one makes records far easier. Some banks require a business account for business use, so check the terms of your personal account.
• Insurance. Employers' liability insurance is compulsory once you employ staff, with some exceptions. Public liability insurance covers claims from customers or the public, and professional indemnity covers claims that your advice or work caused a loss. Some clients, regulators and trade bodies require these.
• Licences and registration. Some work needs a licence or registration, for example food businesses register with their local council before they start trading, and some trades need certification. GOV.UK has a licence finder.
• Data protection. If you hold customers' personal data, you must look after it properly, and you may need to pay the Information Commissioner's Office data protection fee.

Step 8: Price your work properly

Self-employed pricing has to cover more than your time. You don't get paid holiday, sick pay or employer pension contributions, and not every hour is billable, because finding clients, admin and travel take time too.

A simple way to set a day rate:

1. Decide the yearly income you need before tax.
2. Add your yearly business costs.
3. Estimate realistic billable days, after holidays, quiet spells and admin.
4. Divide the total by your billable days.

Then compare the result with what others in your field charge, and review it every year.

Step 9: Invoice clearly

An invoice should include a unique invoice number, your name or business name and address, the customer's name and address, the date, a description of the work, the amount owed and your payment terms. If you are VAT-registered, extra details are required. Agree payment terms before you start, send invoices promptly and follow up politely but firmly when they are late.

Step 10: Find work and protect your future

Most new self-employed people find their first clients through people they already know: former employers and colleagues, personal recommendations and local networks. A simple website or profile, a portfolio of examples and a clear description of what you do help others refer you. Our guide to freelance work in the UK covers finding clients and platforms in more detail, and our list of work from home jobs includes many roles that work well on a self-employed basis.

Plan your own safety net, too. Consider a personal pension, keep a cash buffer for quiet months and check GOV.UK for what support you could get if you are ill. If you are not yet sure which kind of work to build a business around, the Career Compass assessment can help you match your strengths to work that suits you.

This guide is general information, not legal or tax advice. Rules and rates can change each tax year, so check GOV.UK or speak to an accountant about your own situation.

Find work that fits your strengths

If you are weighing up options, our guide to choosing a career test explains what a good one tells you and what it cannot.