# IR35 Contractor Checker

> Source: https://bryter.com/de/use-cases/ir35-contractor-checker/

The IR35 Contractor Checker helps to assess the impact of the April 2021 changes to IR35 for companies who employ contractors.

#### Background

On 6 April 2021, the [new off-payroll working rules](https://www.gov.uk/guidance/understanding-off-payroll-working-ir35) came into effect in the UK, with the consequence that the duty of complying with the off-payroll working rules shifts from the individual contractors and their PSCs to the businesses that engage the services of contractors. 

The new rules mandate these businesses are now responsible for: ​ 

- **deciding whether** the new rules apply to a contractor; and ​ 
- **deducting **the employment taxes and National Insurance contributions of the contractor. ​ 

The IR35 Contractor Checker enables companies to quickly establish if they are affected by the changes. Moreover, our [risk and compliance](https://bryter.com/team/risk-and-compliance/) tool allows affected companies to quickly identify the tasks required to ensure the company is compliant and complete the required determinations for engaged contractors.

[Book a demo](https://bryter.com/get-demo/) to find out how BRYTER can help you [automate your documents](https://bryter.com/applications/document-automation/). Or if you’re still researching how to improve your processes, check out our [Legal Operations](https://bryter.com/trends/what-is-legal-operations/) and [Data Privacy Automation](https://bryter.com/trends/getting-started-with-data-privacy-automation/) guides.