Become a Contractor in the UK
Becoming a contractor can give you greater freedom, higher earning potential, and control over the work you take on. But making the leap from employment to contracting involves a few important decisions, from how you structure your business to understanding tax rules like IR35. The good news is that getting started is more straightforward than many people think. At Form My Company, we help new and experienced contractors set up properly so they can focus on winning work and getting paid.
This guide walks you through how to become a contractor in the UK, step by step, covering everything from finding contracts to choosing the right setup.
What Is a Contractor?
A contractor is a self-employed professional who provides services to clients on a project or fixed-term basis, rather than working as a permanent employee. Contractors are common across many sectors, including IT, engineering, construction, consulting, healthcare, finance, and creative industries. Instead of a single employer, you typically work with multiple clients over time, often securing contracts through agencies or directly.
Contracting offers flexibility and often higher day rates than equivalent permanent roles, in exchange for taking on responsibilities like managing your own taxes, finding your own work, and arranging your own benefits.
Step 1: Decide If Contracting Is Right for You
Before making the move, it helps to weigh up the realities of contracting. The advantages include flexibility over which projects you take, the potential to earn more, variety in your work, and being your own boss. The trade-offs include less job security, no employer-provided benefits like paid holiday or sick pay, responsibility for your own taxes, and the need to keep finding new contracts. If the independence appeals and you’re comfortable managing your own business affairs, contracting could be an excellent fit.
Step 2: Choose Your Business Structure
How you set up determines how you’re paid, how you’re taxed, and how much admin you’ll handle. The main options are:
- Limited company. Often called a personal service company (PSC) in contracting, this is a popular choice. It can be tax-efficient, gives you control of your finances, and presents you professionally to clients and agencies. It involves more admin, usually handled with an accountant.
- Umbrella company. The umbrella acts as your employer and handles your tax through PAYE, deducting a fee. It’s simpler and suits short-term or inside-IR35 contracts, though it’s generally less tax-efficient.
- Sole trader. Simple to set up, but many agencies and clients won’t engage contractors as sole traders, and it offers no limited liability protection.
For many contractors, a limited company strikes the best balance of control, credibility, and tax efficiency. The right choice depends on your circumstances, so it’s worth discussing with a contractor accountant.
Step 3: Understand IR35
IR35, also known as the off-payroll working rules, is one of the most important things for any contractor to understand. The rules make sure that a worker who provides services through their own intermediary pays broadly the same Income Tax and National Insurance as an employee would, where they would have been an employee if providing services directly to the client.
A contract is either “outside IR35” (genuinely self-employed and taxed more efficiently through your company) or “inside IR35” (treated like employment for tax). There’s also a recent change worth knowing about. From 6 April 2026, the thresholds that determine whether an end client counts as small for IR35 purposes increased, with turnover rising from £10.2 million to £15 million and the balance sheet total from £5.1 million to £7.5 million, while the employee headcount remains at 50. This affects who is responsible for your status. Private sector businesses classed as small do not need to consider the off-payroll rules, and the limited company contractors they engage must consider their own IR35 status under the original Chapter 8 rules. Because IR35 is complex and getting it wrong can be costly, specialist accounting advice is strongly recommended.
Step 4: Set Up Your Company
If you choose the limited company route, setting up is quick and fully online with Form My Company:
Choose Your Company Name
Pick a unique, professional name and we’ll check its availability with Companies House instantly.
Appoint Yourself as Director and Shareholder
Most contractors are the sole director and shareholder of their company. We’ll guide you through the details.
Add a Registered Office Address
You’ll need a UK registered office address. Use our professional Bolton BL1 address to keep your home address off the public register.
Complete Identity Verification and File
We help you complete the required identity verification remotely, then file your company with Companies House, often with documents issued within hours.
Step 5: Sort Out the Essentials
Once your company is set up, a few practical steps get you ready to trade:
- Open a business bank account. Essential for keeping your finances separate. We can introduce you to suitable banking partners.
- Register for taxes. Register for Corporation Tax, and consider VAT registration and PAYE if you’ll take a salary.
- Appoint an accountant. A contractor accountant helps with tax, dividends, and your IR35 position, and is well worth the investment.
- Get insured. Many contracts require professional indemnity and public liability insurance.
Step 6: Find Your First Contract
With the setup done, it’s time to win work. Common routes include recruitment agencies that specialise in your sector, professional networks and word of mouth, online platforms and job boards, and approaching potential clients directly. A strong CV, a clear sense of your day rate, and a professional limited company all help you stand out and secure contracts.
How Form My Company Helps New Contractors
We take the hassle out of getting set up so you can start contracting sooner. You get an instant company name check, expert handling of your Companies House filing, a professional UK registered office address to protect your privacy, identity verification support, and banking introductions. With the formalities handled correctly, you can focus on finding work and building your contracting career.
Start Your Contracting Journey Today
Becoming a contractor in the UK is an exciting step toward independence and greater earning potential. With the right structure, a clear understanding of IR35, and a professional setup, you’ll be ready to hit the ground running. With Form My Company, getting your limited company set up is fast and fully supported. Get started today and take the first step in your contracting career.
Frequently Asked Questions
How do I become a contractor in the UK?
You decide if contracting suits you, choose a business structure such as a limited company or umbrella, understand your IR35 position, set up your company and finances, and then find contracts through agencies, networks, or directly with clients.
Do I need a limited company to be a contractor?
Not always, but many contractors use one because it’s tax-efficient and professional, and many agencies prefer it. Alternatives include working through an umbrella company or, less commonly for contractors, as a sole trader.
What is IR35 and why should contractors care?
IR35, or the off-payroll working rules, ensures contractors working like employees pay broadly similar tax to employees. Your contracts are either inside or outside IR35, which affects your tax, so understanding it is essential.
Did IR35 change recently?
Yes. From 6 April 2026, the small company thresholds rose, meaning more contractors working for smaller clients are now responsible for assessing their own IR35 status. Reviewing your contracts and seeking specialist advice is wise.
Is contracting through a limited company or umbrella better?
It depends on your situation. A limited company offers more control and tax efficiency but more admin, while an umbrella is simpler and suits short-term or inside-IR35 work. An accountant can help you decide.
Do I need an accountant as a contractor?
It’s not legally required but highly recommended. A contractor accountant helps with tax, dividends, and your IR35 position, which carries real financial risk if handled incorrectly.
How quickly can I set up my contracting company?
With Form My Company, your company can often be formed within hours of submitting your details and completing identity verification, so you can start contracting quickly.
