Independent contractor: what it is and how to start

Published Wednesday 25 March 2026

Table of contents

• What is an independent contractor?
• Independent contractor vs employee: What's the difference?
• The benefits of becoming a contractor
• What are your employment rights as an independent contractor?
• Understanding the downsides of contractor life
• Plan what you will earn
• How you get started
• Five ways to find contract work
• Essential tools for independent contractors
• Succeeding as an independent contractor
• FAQs on independent contractors

Key takeaways

• Register with HMRC for Self Assessment as soon as you start contracting and use their Check Employment Status for Tax tool to confirm your classification, as getting this wrong can result in back taxes and penalties for both you and your client.
• Calculate your true earning potential by factoring in gaps between contracts, self-funded benefits like sick pay and pensions, and business costs such as professional indemnity insurance before deciding if contracting pays more than employment.
• Set up essential business foundations including a separate business bank account, professional indemnity insurance, standard contracts for clients, and cloud-based accounting software to track expenses and send invoices professionally.
• Build multiple income streams by combining freelance platforms like Upwork with LinkedIn networking, government procurement sites, existing professional contacts, and partnerships with other contractors to ensure consistent work flow.

What is an independent contractor?

An independent contractor is a self-employed worker who provides services to clients through their own business rather than as an employee. Unlike employees, contractors control how and when they complete their work, and they're responsible for their own tax and National Insurance contributions.

In the UK, His Majesty's Revenue and Customs (HMRC) considers several factors when determining contractor status. You're likely to be classified as an independent contractor if you:

• own at least part of your own business
• work for multiple clients during each tax year
• have specialised skills or expertise
• work on temporary, short-term assignments or projects
• supply most of your own materials and equipment
• control how and when you complete the work
• can send a substitute to do the work in your place

HMRC's Check Employment Status for Tax (CEST) tool can help you confirm your status. Getting this classification right matters because it affects your tax obligations and the legal protections available to you.

Independent contractor vs employee: What's the difference?

Understanding the difference between an independent contractor and an employee is important for your tax, rights, and responsibilities. Getting it wrong can cause problems for both you and your client.

Key differences between contractors and employees

The main distinction comes down to control and independence. An employee works as part of their employer's business, while a contractor runs their own business. This affects everything from how you're paid to the benefits you receive.

Employees typically have their taxes through Pay As You Earn (PAYE) and National Insurance deducted by their employer. They are entitled to sick pay, holiday pay, and other benefits. A contractor, on the other hand, is responsible for their own tax and National Insurance through Self Assessment and does not receive these employment benefits.

Independent contractor vs freelancer

In the UK, the terms 'freelancer' and 'independent contractor' are often used interchangeably. Both refer to someone who is self-employed and provides services to clients.

While some may see freelancers as working on smaller, multiple projects and contractors on larger, single contracts, legally they both fall under the umbrella of self-employment.

The benefits of becoming a contractor

Independent contracting offers flexibility, higher earning potential, and control over your career. This desire for autonomy reflects a broader trend, with an Association of Chartered Certified Accountants (ACCA) survey revealing that 48% of women finance professionals aspire to become entrepreneurs. Many contractors find these advantages outweigh the trade-offs of leaving traditional employment.

Here are the key benefits of becoming a contractor:

• Greater independence: You control your schedule, choose your clients, and decide how you work. Many contractors report feeling more secure knowing multiple clients value their skills.
• Better work-life balance: Less commuting, fewer meetings, and no office politics. You can work the hours that suit your lifestyle.
• Higher earning potential: You get paid for every hour you work at market rates. If your skills are in demand, your income can exceed what you'd earn as an employee.
• Career flexibility: You can test new industries or specialisations without committing to a full-time role. If something doesn't work out, you can pivot quickly.
• Part-time options: Contracting suits graduates exploring their options and experienced professionals building a portfolio career.
• Try before you commit: Not sure about a company? Work with them as a contractor first to see if it's the right fit.

What are your employment rights as an independent contractor?

As an independent contractor, your employment rights are different from those of an employee. You are not entitled to the same protections, such as statutory sick pay, holiday pay, or protection against unfair dismissal.

You do, however, have rights related to health and safety in the workplace and, in some cases, protection against discrimination. Your contract with your client usually outlines the specifics of your rights. This contract is a key document that defines the working relationship, deliverables, and payment terms.

Understanding the downsides of contractor life

As a contractor, you manage your own employment arrangements rather than relying on employer-provided protections. Understanding these differences helps you plan accordingly.

Here are the key considerations:

• Variable income: You're paid for work you complete, so building savings helps you manage periods between contracts.
• Self-funded benefits: Clients aren't required to provide sick pay, holiday pay, pensions, or healthcare. You'll need to arrange and fund these yourself.
• Different workplace protections: Statutory sick pay, redundancy pay, and unfair dismissal protection don't apply to contractors. You'll also miss out on auto-enrolment pensions.
• Independent working: You work separately from the client's team structure. This means fewer meetings and company events, though team dynamics may differ from employment.
• Tax responsibility: No one withholds tax for you. You're responsible for setting aside money for your Self Assessment tax bill and paying National Insurance contributions. Good accounting software helps you track what you owe.
• Misclassification risk: If HMRC decides you should have been classified as an employee, both you and your client could face back taxes and penalties. Make sure your working arrangement genuinely reflects self-employment.

Plan what you will earn

When you plan your contractor income, calculate whether you'll earn more working for yourself than as an employee, once you account for benefits you'll arrange yourself and additional costs.

Many contractors start as employees, so they already know the going rates in their industry. If you're unsure what to charge, check freelance platforms like Upwork for current market rates.

Remember that as a contractor, you're only paid for work you complete. There's no sick pay, holiday pay, company pension, or healthcare coverage unless you arrange it yourself.

That said, skilled contractors who deliver high-value work can still come out ahead financially. To find out if contracting makes sense for you, work through these steps:

1. Calculate your potential earnings: Estimate your hourly or project rate and how many billable hours you can realistically work each month.
2. Factor in gaps: Account for time between contracts, holidays, and sick days when you won't earn.
3. Add your costs: Research the cost of professional indemnity insurance, pension contributions, private healthcare, and equipment.
4. Compare the totals: Use accounting software to forecast your net income and compare it to your current salary plus benefits.

If you fall ill, you may be able to claim benefits. Read our guide to sick pay for the self-employed in the UK for details.

Consider speaking with a financial adviser before making your final decision. They can help you stress-test your numbers and identify costs you might have missed.

How you get started

Setting up as an independent contractor involves registering with HMRC, choosing a business structure, and putting the right systems in place. Here's how to get started:

1. Choose your business structure

As a sole trader, setup is simpler, but you're personally liable for business debts and keep all profits after tax. A limited company has more admin and legal requirements, but your personal assets are protected. A limited company can be more tax-efficient at higher earnings.

Most new contractors start as sole traders and switch to a limited company later if it makes financial sense.

2. Register with HMRC

Register for Self Assessment as soon as you start contracting. You can do this online through the HMRC website, and be aware of new rules like Making Tax Digital, which requires those with gross incomes over £50,000 to keep digital accounting records and submit quarterly updates.

If you expect to earn more than £90,000 per year, you'll also need to register for VAT.

3. Set up your business essentials

Open a separate business bank account to keep your finances organised. Get professional indemnity insurance to protect against claims of negligence or mistakes, and public liability insurance if someone is injured or their property is damaged.

Create standard contracts, non-disclosure agreements (NDAs), and service agreements for clients to sign, though some clients will prefer their own documentation.

4. Get your accounting software sorted

Track expenses as you go to maximise tax deductions. Send professional invoices and monitor which payments are outstanding. Keep records organised for your Self Assessment tax return.

5. Create your business plan

Set your rates based on market research and your target income. Forecast your expenses, including insurance, software, and equipment. Consider working with an accountant to create a plan that's realistic and professional.

Check out our guide on starting a business for more detailed guidance on each step.

Five ways to find contract work

Finding contract work requires a mix of online platforms, networking, and direct outreach. The right approach depends on your industry and the type of clients you want to attract.

Here are five proven ways to find contract work:

• Browse freelance platforms: Sites like Upwork and PeoplePerHour let you bid on projects posted by businesses. These work well for building initial experience and client reviews.
• Register on government procurement sites: Platforms like Contracts Finder list public sector contracts. You'll need to complete a supplier registration process, but competition can be lower than on commercial platforms.
• Build your LinkedIn presence: Share your expertise, engage with potential clients, and respond to contract opportunities when businesses post them. Professional networks often fill contracts before companies advertise them publicly.
• Tap your existing contacts: Let friends, former colleagues, and professional connections know you're available for contract work. Personal referrals often lead to the best client relationships.
• Partner with other contractors: Connect with contractors whose skills complement yours. You can refer work to each other and collaborate on larger projects that neither could handle alone.

If your work can be delivered remotely, you can expand your search internationally. Accounting software with multi-currency invoicing makes it straightforward to bill overseas clients.

Essential tools for independent contractors

The right tools help you manage the admin, finances, and marketing that come with running your own business. Cloud-based software lets you access everything from anywhere, on any device.

Here are the essential tools for independent contractors:

• Time tracking and project management: Track billable hours by client and project so you invoice accurately. Tools like Toggl or Harvest integrate with accounting software.
• Accounting software: This is the backbone of your business. Use it to send invoices, track expenses, monitor cash flow, and prepare for tax returns. Xero connects with your bank and automates much of the bookkeeping.
• Task management: Without a manager setting priorities, you need a system to stay organised. Simple tools like Todoist or Trello help you track deadlines and deliverables.
• Office software: Word processing, spreadsheets, and presentation tools are essential. Google Workspace and Microsoft 365 offer cloud-based options that work well for small businesses.
• Marketing tools: You'll need a professional website and social media presence to attract clients. Platforms like Squarespace, Mailchimp, and Buffer help you build visibility without needing technical skills.

Choose tools that integrate with each other to reduce manual data entry and keep everything in sync.

Succeeding as an independent contractor

To succeed as an independent contractor, you need self-discipline, initiative, and the ability to handle uncertainty. You'll need to manage your own time, find your own clients, and stay motivated without a team around you.

The trade-off is freedom. You control your schedule, choose your projects, and build a career on your own terms. Many contractors find this independence more rewarding than traditional employment.

Cloud-based tools have made contractor life simpler than ever. You can manage invoicing, expenses, and tax preparation from anywhere, leaving more time for the work you actually enjoy.

Track your expenses, send professional invoices, and stay on top of tax obligations with accounting software. Get one month free and see how simple managing your finances can be.

FAQs on independent contractors

Here are answers to common questions about working as an independent contractor in the UK.

Do I need professional indemnity insurance as an independent contractor?

Professional indemnity insurance protects you if a client claims your work caused them financial loss. It's not legally required for most contractors, but many clients won't work with you without it. Public liability insurance is also worth considering if you visit client sites or meet clients in person.

Can I work as an independent contractor while employed full-time?

Yes, you can contract alongside employment, but check your employment contract first. Many contracts include clauses restricting outside work, particularly for competitors. You'll also need to manage the additional tax complexity of having both employed and self-employed income.

What is IR35 and how does it affect independent contractors?

IR35 is tax legislation designed to identify contractors who would be employees if not for their limited company structure. If your contract falls inside IR35, you'll pay similar taxes to an employee. Since April 2021, medium and large businesses must determine your IR35 status. Use HMRC's Check Employment Status for Tax (CEST) tool to assess your situation.

How do I handle contracts with clients as an independent contractor?

Always use a written contract that specifies the scope of work, payment terms, deadlines, and intellectual property ownership. Having your own standard contract protects both parties and demonstrates professionalism. Some clients will insist on using their own contracts, so review these carefully before signing.

What happens if I get sick as an independent contractor?

You won't receive statutory sick pay as a contractor, but you may be able to claim Employment and Support Allowance (ESA) or Universal Credit if you're unable to work. Income protection insurance can replace a portion of your earnings during illness. Read our guide to sick pay for the self-employed for more details on your options.