Please note that our offices will be closing at 4pm on Friday 30th July 2021. We will reopen at 8:30am on Monday 2nd August. If you have any queries in the meantime, please use the information available via the website or email [email protected] and a member of the team will return your call as soon as possible. We apologise for any inconvenience caused.

Feefo Gold Merchant

IR35 Advice Centre


IR35 Case Studies

IR35 Case Studies
Contact Qdos Contractor:0116 269 0999

IR35 Guidance


IR35 Case Studies and Case Law

Qdos have been defending contractors in IR35 enquiries and investigations all the way to tribunal since the legislation was introduced in 2000.

As specialists on the legislation with over 1,600 successfully defended enquiries under our belt, we are one of the most experienced advisors in the field. Whilst an enquiry of any duration can be stressful, at Qdos, our consultants always try to close an enquiry as early as possible, avoiding the stress and uncertainty which comes with a case that goes to tribunal.

Below we provide you with some examples of cases completed by Qdos that both close early and which have been concluded at a tribunal hearing, providing you with first-hand accounts and experiences of an enquiry. Where the case did not go to tribunal and therefore the details are not publicly available, we have generalised the specifics (e.g. name of contractor) out of respect for our clients.

You will also find a number of case studies which were not completed by Qdos, giving you a wider picture of the history and application of IR35 case law.

1600+ IR35 cases successfully defended by Qdos
250 cases are committed to be tackled by HMRC at any one time
58% of cases do not have insurance in place (based on Qdos defended cases 2014-16)

Qdos IR35 Case Examples

  • Public Sector Tribunal Win
    Qdos demonstrate that HMRC do not make accurate IR35 assessments with a public sector engagement during recent public sector reform.

  • Evidence Closes Enquiry Early
    This example of a Qdos-defended case shows how having appropriate evidence in hand can prevent an enquiry from escalating.

  • No Two are Equal
    Two similar cases, both defended by Qdos under the contractors' respective Tax Liability Cover policies, which demonstrate how HMRC's approach to IR35 can vary.

  • Experience Matters
    A case which was passed to us after an accountancy firm reached their limit, demonstrating the importance of having an expert on your side.

IR35 Case Studies


    The Company


    About Us

    Why Qdos?


    Qdos Contractor are one of the leading providers of specialist contractor insurance services in the UK. Our online application process takes only a matter of minutes with all documentation issued instantly. Unlike many other brokers, we don’t hide our premiums until you've provided your details, as we are confident that our premiums, service and product are the best in the market. In addition, Qdos Contractor is one of the leading authorities on the IR35 legislation and have handled well over 1,500 IR35 enquiries on behalf of UK contractors.


    Our History


    Qdos began in 1988 as a tax consultancy business and has grown significantly over the past two decades, providing expert business services, products and advice. Over the years, Qdos has grown in both size and reputation as a trusted contractor insurance broker as well as an expert tax advisor. Our aim is to provide UK contractors with the assistance and service with IR35 issues they need as well as sustaining excellent quality and competitive premiums in the contractor insurance market.


    Selected Policies



    From £199.00 Tax Liability Cover (TLC35)

    Full IR35 insurance, covering representation costs in dealing with HMRC plus additional tax, NIC, interest and penalties arising from an IR35 enquiry....

    From £199.00 Tax Liability Cover (TLC35)
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    Only £99.00 Tax Enquiry Insurance

    Covers full representation costs in the event of a range of HMRC enquiries, including PAYE reviews, IR35, Section 660a. You can add Unlimited IR35 Co...

    Only £99.00 Tax Enquiry Insurance
    Learn more
    Only £125.00** Full IR35 Contract Review

    Provides a full and frank IR35 appraisal of your contract, commenting on each relevant clause along with our opinion as to whether the contracts falls...

    Only £125.00** Full IR35 Contract Review
    Learn more

    Need Help?


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