What is CEST?

Definition of CEST

CEST is short for Check Employment Status for Tax. It’s a digital tool designed by HMRC to help public authorities decide if a worker falls inside or outside the scope of IR35.

The tool comes in a quiz-like format and can be accessed here.

Why was CEST introduced?

When off-payroll working rules were introduced to the public sector in 2017, the onus to certify whether a worker fell inside or outside IR35 shifted from the worker to the public sector authority.

HMRC produced the CEST tool to help public sector authorities make these decisions quickly and cheaply.

An updated version of the CEST tool was released in November 2019.

Does CEST only apply to the public sector?

CEST can be used in both the private sector and the public sector but it’s important to note that the private sector is assessed differently under the off-payroll regulations. In the private sector, the onus is on contractors to declare whether they fall inside or outside IR35, rather than their clients.

From April 2021, the rules on off-payroll working in the private sector are set to change, bringing it in line with the rules that apply to the public sector for contractors working with large and medium-sized business clients.

Disclaimer: The content included in this glossary is based on our understanding of tax law at the time of publication. It may be subject to change and may not be applicable to your circumstances, so should not be relied upon. You are responsible for complying with tax law and should seek independent advice if you require further information about the content included in this glossary. If you don't have an accountant, take a look at our directory to find a FreeAgent Practice Partner based in your local area.

Bookkeeping and tax tips

If you check this box, we’ll send you business tips tailored for landlords. If you’d like more general small business tips, leave it unchecked.

We are committed to keeping your information safe. Read our Privacy Policy to find out more.

Related Definitions

Are you an accountant or bookkeeper?

Find out more about FreeAgent for your practice.