A group of construction workers working on a construction site

In today’s rapidly evolving job market, many professionals are choosing to leave traditional employment behind to become contractors. The flexibility, higher earning potential, and ability to choose projects make contracting an attractive option.

However, becoming a contractor in the UK involves more than just quitting your current job and taking on freelance work. There are important steps, legal obligations, and strategies you need to understand before making the leap.

In this guide, we’ll walk you through how to become a contractor in the UK, covering everything from setting up your business to managing taxes, finding clients, and staying compliant with UK regulations.

Why Become a Contractor?

Before diving into the specifics of how to become a contractor, it’s worth understanding why so many people are making this career move. Here are some of the top reasons professionals in the UK are choosing contracting over permanent employment:

  • Flexibility: You can choose when, where, and for whom you work, giving you control over your schedule and work-life balance.
  • Earning Potential: Contractors can often charge higher hourly or daily rates compared to salaried employees, especially in industries like IT, engineering, or finance.
  • Variety of Work: Contracting allows you to work on diverse projects for different clients, keeping your work interesting and expanding your skillset.
  • Autonomy: As a contractor, you are your own boss. You have control over which projects you take on, how you approach your work, and how you grow your business.

With these benefits in mind, let’s look at how you can become a contractor and thrive in this competitive market.

Step 1: Decide on Your Business Structure

The first step in becoming a contractor in the UK is deciding how you want to structure your business. You have a few different options, and each comes with its own pros and cons.

1. Operate as a Sole Trader

One of the simplest ways to become a contractor is to operate as a sole trader. In this model, you are self-employed, and there is no legal distinction between you and your business. This option is straightforward, with minimal administrative requirements.

Pros of Sole Trader:

  • Easy to set up.
  • Fewer legal obligations and paperwork compared to a limited company.
  • Full control over business finances and decisions.

Cons of Sole Trader:

  • Unlimited liability (your personal assets are at risk if your business faces legal or financial trouble).
  • Less tax-efficient than a limited company for higher earners.

2. Set Up a Limited Company

Many contractors choose to set up a limited company for tax and legal reasons. A limited company is a separate legal entity, and as a contractor, you can pay yourself through a combination of salary and dividends, which can be more tax-efficient.

Pros of a Limited Company:

  • More tax-efficient for higher earners.
  • Limited liability (your personal assets are protected if something goes wrong).
  • Professional appearance, especially for larger clients.

Cons of a Limited Company:

  • More administrative tasks (filing annual accounts, corporation tax returns, etc.).
  • You may need to hire an accountant to manage financial obligations.

3. Use an Umbrella Company

If you don’t want the hassle of setting up your own business but still want to become a contractor, you can use an umbrella company. In this model, you become an employee of the umbrella company, which handles payroll, taxes, and invoicing on your behalf.

Pros of an Umbrella Company:

  • Simplified administration (the umbrella company handles taxes and payments).
  • You receive employment benefits like sick pay and holiday pay.
  • Ideal for short-term contractors or those working inside IR35.

Cons of an Umbrella Company:

  • Less take-home pay due to umbrella company fees.
  • Less control over your finances.

Choosing the right business structure is crucial when becoming a contractor, as it affects your tax obligations, liability, and how you operate day-to-day.

Step 2: Register with HMRC

Once you’ve decided on your business structure, the next step in becoming a contractor is to register with HMRC (Her Majesty’s Revenue and Customs). The registration process varies depending on your business model.

  • Sole Trader: You’ll need to register as self-employed through the HMRC website. You will be responsible for filing an annual Self-Assessment tax return and paying income tax and National Insurance.
  • Limited Company: You’ll need to register your company with Companies House and HMRC. As a director, you’ll be responsible for filing corporation tax returns, annual accounts, and potentially hiring an accountant to manage these responsibilities.
  • Umbrella Company: If you’re using an umbrella company, they will handle your tax registration and payments, so you don’t need to worry about this step.

Regardless of your business structure, it’s important to stay on top of your tax obligations from the beginning to avoid fines or legal issues.

Step 3: Understand IR35 Legislation

One of the key things to understand when learning how to become a contractor in the UK is IR35 legislation. IR35 is a set of tax rules designed to prevent contractors from operating as “disguised employees.” If your contract work is deemed to fall inside IR35, you will be taxed as an employee, losing some of the tax benefits of contracting through a limited company.

How to Determine IR35 Status:

  • Inside IR35: You’re considered a “disguised employee,” meaning you must pay income tax and National Insurance like a regular employee.
  • Outside IR35: You are genuinely self-employed, and you can benefit from the tax advantages of contracting through a limited company.

Factors That Determine IR35 Status:

  • Control: How much control does the client have over how, when, and where you work?
  • Substitution: Can you send someone else to do the work on your behalf?
  • Mutual Obligation: Is there an expectation that the client will offer work and that you must accept it?

If you’re unsure about your IR35 status, it’s a good idea to seek professional advice or use HMRC’s Check Employment Status for Tax (CEST) tool.

Step 4: Set Up Business Banking and Insurance

A key step in becoming a contractor is setting up a separate business bank account to keep your personal and business finances separate. This is especially important if you’re operating through a limited company, as it helps with managing cash flow, invoicing, and tax obligations.

Types of Business Insurance Contractors Should Consider:

  • Professional Indemnity Insurance: Protects you in case a client claims your work caused them financial loss or damage.
  • Public Liability Insurance: Covers you if someone is injured or their property is damaged because of your work.
  • Employer’s Liability Insurance: Required by law if you hire any employees.
  • Income Protection Insurance: Provides a safety net if you are unable to work due to illness or injury.

Having the right insurance in place is essential to protect your business and meet client requirements when you become a contractor.

Step 5: Find Contracting Opportunities

Now that you’ve set up your business and taken care of the legal aspects of becoming a contractor, it’s time to find work. Securing contracting gigs is one of the most important steps in how to become a contractor, and there are several ways to do this.

1. Use Contract-Specific Job Boards

There are numerous online job boards dedicated to contract work across various industries. Set up alerts for new opportunities that match your skills and industry experience.

2. Leverage Your Professional Network

Word of mouth and networking are crucial for finding contract opportunities. Let former colleagues, friends, and industry contacts know you’re available for contract work.

3. Work with Recruitment Agencies

Specialist recruitment agencies often have access to unadvertised contracting opportunities. Partnering with an agency can help you get your foot in the door with larger clients or projects.

4. Utilize LinkedIn

Update your LinkedIn profile to reflect your status as a contractor, highlighting your skills, experience, and availability for contract work. Joining industry groups and participating in discussions can also help you build connections and find opportunities.

Step 6: Manage Your Finances and Taxes

Successfully becoming a contractor means staying on top of your financial obligations. This includes invoicing clients, managing cash flow, and setting aside money for taxes.

Key Financial Tips for Contractors:

  • Set Aside Tax Contributions: Regularly set aside a percentage of your earnings to cover income tax, National Insurance, and (if applicable) VAT.
  • Track Expenses: Keep detailed records of your business expenses, such as travel, office equipment, and insurance, as these can be claimed to reduce your tax liability.
  • Hire an Accountant: If managing taxes and finances feels overwhelming, consider hiring an accountant to help with annual tax returns, bookkeeping, and VAT submissions.

Step 7: Stay Compliant and Continue Learning

Once you’ve landed your first few contracts, your journey of becoming a contractor doesn’t end there. You must ensure you remain compliant with all relevant laws and continue to improve your skills to stay competitive in the contracting market.

Compliance Tips:

  • File Taxes on Time: Whether you’re a sole trader or running a limited company, ensure that you file your tax returns on time to avoid penalties.
  • Review IR35 Status: Regularly review your IR35 status for each new contract, as it may change depending on the terms of the work.
  • Professional Development: Keep updating your skills and knowledge through training, certifications, or workshops relevant to your industry.

Final Thoughts

Becoming a contractor in the UK can be a highly rewarding career move, offering flexibility, autonomy, and the potential for high earnings. However, how to become a contractor involves careful planning and a solid understanding of your legal and financial obligations. By following these steps, you can set yourself up for success in the world of contracting and enjoy the freedom of working on your own terms.