IR35 Pro – The Fully Managed IR35 Service

Announcement: Gattaca Partners with IR35Pro to help Clients Turn IR35 into a Competitive Advantage. Learn More

The Fully Managed Service for IR35

We eliminate the IR35 risk, enabling you to attract the best contractor talent whilst delivering £multi-million cost efficiencies to your bottom line.

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Clients Serviced
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Contract reviews
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Years Of Experience
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HMRC IR35 Investigations

Years Of Practical Experience

Guidance From Our Expert Team

IR35 Pro is a unique fully managed service, robust and comprehensive, covering every aspect of your needs.


Use our calculator to get an indication of the potential cost benefits of our Service

On average, it costs a company c.£25,000 more to pay a contractor the same net income inside IR35 vs outside IR35.

HMRC state 66% of your contractors should be outside IR35. In our experience, 75% is actually achievable. Our calculator shows the cost benefits of using our Service to enable the use of Ltd contractors, safely and compliantly.


HMRC state 66% of your Contractors should be outside IR35.

Working with your contractors inside IR35 is both unsustainable and, in the vast majority of cases, incorrect.

Despite HMRC’s expectations, the current reality is that many companies have the majority of their contractors working inside IR35, some have all of them . IR35 is simply not being assessed and managed correctly, we help solve this for clients.

In our experience, most companies are not aware that recruiting contractors inside IR35 costs them 35-40% more, coming directly from their bottom line.

Engaging contractors inside IR35 isn’t a viable solution for either Client or contractor. In our 15 years Legal IR35 experience, 75% of your contractors should fall outside IR35, if the have the legal expertise to understand how to do so compliantly.

Our fully managed service takes care of the headache so you don’t have to.

We guarantee a positive Return on Investment.

We take full IR35 responsibility, so you don’t have to.

IR35 Pro is a unique fully managed service, robust and compliant, covering every aspect of your needs. We take care of all the assessment, documentation, drafting and monitoring, so you can focus on finding the best Contractors to meet your needs.

Our Founder, Martyn Valentine, is considered the most experienced Legal IR35 specialist in the UK. Martyn designed the Service to ensure Clients can take advantage of the opportunities IR35 offers, safely and compliantly.

We remove the IR35 risk for Clients & Recruiters.

As Legal specialists, our Service satisfies HMRC’s requirement for ‘reasonable care’. This removes the risk for our Clients.

For further peace of mind, we provide full Legal protection for our clients, in the unlikely event of an HMRC enquiry.

How you could benefit.




No upfront costs and a guaranteed ROI.

Uniquely, we don’t charge any upfront costs. You only pay when you benefit, and with a typical 10:1 ROI on our all-inclusive fees, it’s a compelling proposition.


We will deliver more than cost savings, IR35 Pro will also enable you to attract the very best Contractors, providing a key competitive edge for your Business

SAP certified.

IR35 Pro is built for integration into the industry leading VMS platforms, including SAP Fieldglass and Salesforce, enabling you to seamlessly use our Service from within your own environment.