Inside IR35 Regulatory Affairs Contract Jobs

Contract Regulatory Affairs engagements cover work within pharmaceutical, biotechnology, medical device, and food companies to manage the regulatory submissions, approvals, and compliance activities required to bring products to market and maintain their authorisation in each territory. The work spans preparing and submitting marketing authorisation applications to the MHRA, EMA, FDA, and other national regulatory agencies, managing the lifecycle of approved products including variations, renewals, and labelling updates, advising on the regulatory strategy for new product development programmes, and ensuring that manufacturing and quality processes meet the regulatory standards required for continued product authorisation. RA contractors are brought in to manage specific submission projects, to cover regulatory vacancies, or to provide specialist regulatory expertise in a particular region or product category.

Clients expect Regulatory Affairs contractors to bring are highly specialist and require both deep knowledge of the applicable regulatory frameworks and practical experience managing the submission process. For pharmaceutical RA roles, thorough knowledge of the ICH CTD format, the EMA and MHRA centralised and national procedure routes, and the specific requirements for variation management, annual reassessment, and renewals is expected. For medical device RA contractors, knowledge of the MDR and IVDR regulatory frameworks, the CE marking and UKCA marking processes, and the technical file requirements for class II and III devices is the primary technical requirement. Most Regulatory Affairs contractors have prior experience within a regulatory affairs function of a pharmaceutical or device company, or within a regulatory consultancy or CRO, and build their contracting career on the depth of their regulatory knowledge and submission track record.

The Regulatory Affairs contract market is a well-established and active and specialist market within the life sciences sector, driven by the ongoing pipeline of product development and the continuous regulatory lifecycle management requirements of approved products. The impact of Brexit on the UK regulatory landscape, including the MHRA's development of its own regulatory routes for medicines and devices, has created additional demand for RA contractors with specific MHRA expertise. The wave of new biological and ATMP products requiring first-time regulatory submissions has generated significant demand for senior RA contractors with experience in complex biological submissions. Rates for experienced Regulatory Affairs contractors, particularly those with successful NDA, MAA, or MDR submission track records, are at the premium end of the life sciences contracting market.

IR35 is UK tax legislation that determines whether a contractor is genuinely self-employed or working in a manner that resembles employment. When a contract is classified as inside IR35, income tax and National Insurance are deducted at source, typically via an umbrella company or agency PAYE. Headline day rates on inside IR35 engagements are generally higher than equivalent outside IR35 roles to account for the tax and employment cost structure.

Inside IR35 determinations are made where the working arrangements are considered to resemble employment, based on factors including the level of client control, the absence of a genuine right of substitution, and the presence of mutuality of obligation. Since April 2021, the end client is responsible for making this determination for medium and large private sector organisations. Many employers in financial services, government, and professional services assess the majority of their contractor engagements as inside IR35.

On QualityContracts.co.uk, approximately 49% of roles with a stated IR35 status are classified as inside IR35, making it the most common arrangement across the contract market. The proportion varies by sector and role type. Each listing on this page displays its IR35 status where provided by the hiring organisation.

Regulatory affairs contracts are heavily inside IR35, at around 85% of those with a stated status. The ongoing nature of regulatory compliance, maintaining product registrations, managing variations, and ensuring the client's activities comply with evolving regulatory requirements, embeds the contractor in the regulatory function. Pharmaceutical companies, medical device manufacturers, and financial services firms subject to FCA or PRA regulation hire regulatory affairs contractors for sustained inside IR35 engagements.

Contract rates for regulatory affairs roles typically range from £450 to £800 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement. Inside IR35 rates are typically 15% to 30% higher than equivalent outside IR35 roles to account for tax and national insurance deducted at source by the fee-payer.

Over the past twelve months, we have tracked over 100 regulatory affairs contract roles across the site. Around one third of the roles currently listed on the site fall Inside IR35. Data reviewed up to March 2026.