Manage your whole supply chain easily with IR35 Complete


Tailored support from our IR35 experts to your agency


Fast & easy IR35 assessment tool with insurable outcomes


Everything you need to comply with IR35


Seamless management of contractors throughout the supply chain

Our In-house Assessment Tool

The most powerful assessment tool on the market
  • Fair decisions – more correct ‘outside’ determinations vs CEST.
  • Cost-effective – great commercial offering for our customers.
  • Speed – fastest tool on the market, completed in minutes.
  • Decisive –  delivers definitive answers quickly with no need for manual review.
  • Branded – take hirers and workers on a branded journey .
  • Integrated – integrate our tool into your CRM.
  • Automated workflow – reduces time chasing SDSs.
  • Insurable – we can insure you against investigations and tax losses.
Get in touch with our IR35 experts to let us assess a sample of your workforce.

Our Solutions

We offer a range of payment solutions to suit all circumstances

Your IR35 Project Plan

It’s important to ensure you are properly prepared for IR35 reforms. Our IR35 experts are here to help every step of the way.

Click on each phase to find out more.

Phase 1


Phase 2


Phase 3

Ongoing Support

Your experienced team

We have a team of specialists who are on hand to help your agency prepare.

Any technical or compliance-related questions can be answered by Chris James, Director of Accountancy Services and Chairman of the FCSA. While any queries you may have about the assessment tool and how it works can be answered by Del Williams, our Sales Director.

“The JSA team were highly knowledgeable, […] they were also great at communicating the complexity of IR35 and helping us to understand how the legislation relates to our business” – Crystal Metcalfe (Vice President)


Professional and efficient

Having worked with a number of umbrella companies over the years, Vicky Traynor and the team JSA stand out from the crowd due to the professional and efficient service that they provide to agencies and contractors.

Matt Randall

Fantastic team

I have been working with JSA for a while now more specifically with Maria Constantinou and their services are really amazing. The team is fantastic but I would like to say a big thank you to Maria for going the extra mile and assisting

Ernesto Gomes


Download Our Guide

If you are a recruitment agency and would like to know more about how you could be affected by the upcoming off-payroll (IR35) reforms, please download our comprehensive guide, outlining where you’re liable and how we can help.

IR35 assessment and liability for tax

In this short video, we help you make sense of responsibility for IR35 assessment and liability for unpaid tax.

What makes a good IR35 assessment?

In this short video we explain what makes a good IR35 assessment.

Begin Our IR35 Assessment Masterclasses

IR35 assessments and Status Determination Statements are integral parts of the new IR35 (off-payroll) reforms. To learn everything you need to know about IR35 assessments, download our free masterclasses.


IR35: Your Project Plan

IR35: Your Project Plan

IR35 reforms are rapidly approaching and your agency needs to be prepared. We’ve detailed a project plan for you to follow so you’re ready for IR35 by April 2021.

read more

We'd love to hear from you

Call us on 01923 257 257 or Request a callback