What is IR35? A guide for employers

What is IR35? A guide for employers


In the ever-evolving landscape of employment and taxation in the United Kingdom, IR35 has become a buzzword for both employers and self-employed contractors. If you're an employer looking to hire contractors or freelancers, understanding IR35 is crucial. This guide will demystify IR35 and help you navigate the complexities of this legislation to ensure compliance and smooth hiring processes.

What is IR35?

IR35 is a piece of tax legislation introduced by the UK government to address what they call "disguised employment." In essence, it aims to determine whether a contractor or freelancer should be classified as an employee for tax purposes. The primary focus of IR35 is to tackle tax avoidance by workers who operate as contractors but enjoy the benefits of employees, such as job security and employment rights, while paying less tax and National Insurance contributions.

IR35 Assessment

To determine whether the IR35 legislation applies to a particular contractor, employers need to conduct an IR35 assessment. The assessment evaluates the nature of the working relationship between the contractor and the company. There are key factors to consider during this assessment:

  • Control & Direction
  • Personal Service & Substitution
  • Mutuality of Obligation
  • Financial Risk
  • Provision of Equipment
  • Basis of Payment
  • Part & Parcel / Integration
  • Exclusive Service


You can read more about the considerations when making an IR35 assessment here.

Implications for Employers

Understanding IR35 is essential for employers, as misclassification can result in hefty fines and potential legal issues. If the IR35 assessment shows that a contractor should be considered an employee for tax purposes, you'll be responsible for deducting the appropriate tax and National Insurance contributions from their earnings. Failure to comply with IR35 can lead to financial penalties and reputational damage for your company.

Ways to Stay Compliant

  • To ensure compliance with IR35, here are some steps employers can take:
  • Regularly conduct IR35 assessments for all contractors to evaluate their status.
  • Seek professional advice from tax experts or legal consultants to help you navigate the complex legislation.
  • Implement clear contractual agreements that accurately represent the working relationship.
  • Communicate openly with your contractors about the implications of IR35 and any changes to their tax status.

IR35 is a critical aspect of hiring and working with contractors and freelancers in the UK. Employers must understand its implications, conduct proper IR35 assessments and establish a compliant process. By doing so, you can ensure that your hiring practices align with the law, mitigate potential risks and foster positive working relationships with your contractors while avoiding the consequences of non-compliance.

To find out more about the steps your business needs to take to stay compliant, download our guide to IR35

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1st November

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