Private Sector Ir35 Guidance

IR35 – In and Out of Scope

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IR35 – In and Out of Scope

  • Publish Date: Posted over 4 years ago
  • Author: IR35 Team

​There’s lots of terminology surrounding IR35, but the most important to understand is the difference between contractors being In and Out of Scope of IR35.

The IR35 basics

IR35, whilst already in operation in the Public Sector, will be extended to the Private Sector in April 2021. The legislation is used by HMRC to verify the tax status of external contractors operating as a Limited Company.

Responsibility for making IR35 status determination statements will sit with the End Client, the company that the contractor is delivering the services to. In order to make accurate determinations though it’s crucial that Hiring Managers fully understand IR35.

In Scope

Put simply, an In Scope IR35 decision means that the contractor’s working practices and engagement is considered, for tax purposes, as employment with the End Client and will therefore be subject to income tax and National Insurance Contributions (NIC) at source. This is also referred to as Inside IR35.

HMRC call this Disguised Employment. A Disguised Employee is a contracted worker who fills a position in a company and works under terms that would make them an employee but doesn’t pay the corresponding income tax and NIC that an employee would. HMRC has guidance on how they evaluate the IR35 status of a contractor, including utilising their CEST (Check Employment Status for Tax) Tool.

Out of Scope

Out of Scope indicates that the working arrangement between the contractor and End Client is not deemed as employment and the contractor is operating as a genuine Limited Company. As such IR35 does not apply and no income tax and NIC deductions are required. This is also referred to as Outside IR35.

It’s important to remember though that IR35 should be assessed for each individual assignment a contractor undertakes. This means that a contractor may have a mix of In Scope and Out of Scope assignments each year, and on those In Scope assignments the fee payer is accountable for paying income tax and NIC.

Find out more

If you’d like to arrange an IR35 contractor workforce review, then contact NRL at or find out out more on the link below.

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