IR35 Lists

This is the core category page for IR35 articles and other content.

What is IR35?

IR35, also known as the off-payroll working legislation, is a form of taxation that was introduced to the public sector in 2017 and to the private sector in 2021, to prevent tax avoidance by contractors who are working as ‘disguised’ employees.

You can find out more in our IR35 Hub, which provides valuable information, resources, guides and news to help you to successfully navigate the reform, whether you are a contractor or engager.

For tax investigation and legal expenses insurance, please call 0333 321 1403.