About Our Inside IR35 Aerospace Contract Roles
What does a aerospace contractor do?
Aerospace contracting in the UK draws on the country's position as the world's second largest aerospace industry, engaging contractors across design, manufacturing, testing, certification, and through-life support of aircraft, engines, satellites, and space systems. Contract roles span a wide technical range: stress and structural analysis, systems integration, avionics software development, flight test instrumentation, manufacturing engineering, and quality assurance. The major employers of aerospace contractors include the airframe and engine manufacturers concentrated around Bristol, Derby, and the North West, the Ministry of Defence and its prime contractors for military aviation programmes, and the growing space and satellite sector.
Aerospace contracting demands discipline-specific knowledge that distinguishes it from general engineering. Contractors are expected to work within DO-178C for airborne software, DO-254 for airborne electronic hardware, AS9100 quality management systems, and the certification requirements of the EASA or UK CAA regulatory framework. Security clearance is required for military programmes and increasingly for civil programmes with dual-use technology. Stress engineers need proficiency in Nastran and Patran, avionics developers work in Ada and C with RTCA standards, and systems engineers use DOORS and Model-Based Systems Engineering approaches. The niche nature of these requirements means aerospace contractors tend to build careers within the sector rather than moving between aerospace and unrelated industries.
What is the market like for aerospace contractors?
UK aerospace contracting is underpinned by long-duration programmes that create multi-year demand for engineering and technical contractors. Civil aviation recovery since 2023 has driven increased production rates for single-aisle aircraft, benefiting the engine and aerostructures supply chain concentrated around Derby and Bristol. Military programmes including Tempest and the ongoing Typhoon support contract sustain demand in the defence aerospace segment. The emerging UK space sector, supported by government investment and commercial launch ambitions, is adding a new dimension to the market. Aerospace contractor supply is limited by the time it takes to develop sector-specific expertise, keeping rates firm for experienced professionals.
What does Inside IR35 mean?
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.
What aerospace roles are usually Inside IR35?
The major aerospace primes and MoD programmes account for the majority of inside IR35 aerospace contracts. These organisations engage contractors as part of large integrated engineering teams, working on-site, attending programme reviews, and operating within the employer's processes and security protocols. The long duration and embedded nature of major platform programmes, often running for years, creates working patterns that are consistently assessed as inside IR35. Security clearance requirements further tie the contractor to the client's infrastructure.
How much do aerospace contractors usually earn when working Inside IR35?
Contract rates for aerospace roles typically range from £400 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.
How many Inside IR35 aerospace vacancies are there on Quality Contracts?
Over the past twelve months, we have tracked over 50 aerospace contract roles across the site. Around one third of the roles currently listed on the site fall Inside IR35. Data reviewed up to June 2026.