IR35 Shield

Welcome to the official channel of IR35 Shield the industry-standard IR35 compliance solution for business and individual contractors. We aim to deliver you in-depth and relevant content regarding IR35 and Off-Payroll legislation.

IR35 Shield was built by the development team at ContractorCalculator, who have 20 years’ experience of the contractor market and have been developing IR35 tools since its inception in 1999. Our team combines decades of enterprise software development experience with know-how in the crucial areas of employment case law and tax.

Our unique combination of expertise in building enterprise software, and experience on the coalface of employment status case law, means IR35 Shield is the perfect solution to help keep your business, and its contingent workforce, fully compliant with IR35 - reducing the risk of investigation and tax liabilities as a result.