IR35 Checker

Get IR35 Clarity in Minutes

Check if your contract falls inside or outside IR35 with our instant assessment tool based on HMRC's official criteria.

Completely free Results in 2 minutes HMRC criteria based No signup required

What is IR35?

IR35 is HMRC's legislation designed to determine whether contractors should be taxed as employees. If your contract falls "inside IR35," you'll pay income tax and National Insurance like an employee. Getting it wrong can result in significant back-taxes and penalties.