IR35 status tools and consultancy for everyone
Proven IR35 experts delivering status tools, consultancy and legal services that give certainty to contractors and the businesses that hire them.


Specialist services by proven IR35 experts
We are a formidable team of proven IR35 and legal experts, providing status software tools alongside bespoke consultancy, contract reviews and specialist legal advice. We believe that business, agencies and contractors should be able to reliably engage, determine their own relationships, and work together in a frictionless manner, against a background of tax certainty.
IR35 status tools
Easy to use, powerful and accurate. Our software allows businesses and contractors to efficiently manage their IR35 assessments.
more infoExpert consultancy
A bespoke IR35 & off-payroll consultation service built around your business, delivered by proven IR35 experts.
more infoLegal services
Contract reviews, template contracts and legal consultancy services offered by our team of IR35 legal experts.
more infoIR35 status tools
IR35 Shield is powered by our expert assessment technology. Built in 2009 and refined alongside ever-changing UK IR35 case law, you can trust our tools to accurately determine if IR35 rules apply. Our latest innovation monitors status throughout an engagement, which reduces tax risk by automatically alerting you if a contractor falls Inside IR35.

What is IR35 Shield and why do I need it?
IR35 Shield provides software and services that allow Outside IR35 contracting engagements to be recognised and rewarded as such, for both businesses and the workers they engage. View the short video below for more information about us and our products.

Expert consultancy
With our success in tax tribunals against accomplished HMRC Counsel, you can be confident you've hired the right team. Our expert-led consultancy services can help your business defend an HMRC tax investigation or ensure your existing processes are robust with an IR35 Stress Test.

Legal services
Our team of legal experts have decades of IR35 experience, and are on-hand ready to help with contract reviews, template contracts and legal consultancy services.

Insurable determinations
IR35 Shield has partnered with specialist tax underwriters to give our customers comfort where further cover is desired.
More informationWhat people say about us
Choose a plan that's right for you
Whether you're an agency, corporate or contractor, we have the complete IR35 solution for you.
IR35 Shield for Business
Manage off-payroll compliance for your contingent workforce