Manufacturing is one of the most common areas for R&D tax relief claims. It is also one of the most misunderstood.
HMRC’s Guidelines for Compliance make clear that not all technical or engineering work qualifies. The key question is whether a project is seeking an advance in science or technology, not simply improving internal processes or applying existing knowledge.
Routine Improvement Is Not R&D
In many manufacturing environments, engineers are constantly improving efficiency, reducing downtime, or refining processes. While valuable, this type of work will not qualify unless it forms part of a defined project seeking to resolve a technological uncertainty.
HMRC gives the example of an engineer maintaining and improving a production line. Even where this involves skill and technical judgement, it does not qualify if there is no specific project aimed at achieving an advance in technology.
R&D begins when existing knowledge is no longer enough.
For example, a manufacturing team may aim to meet new production parameters and find that existing tools or methods cannot achieve this. If a competent professional recognises that a new solution is not readily deducible, and systematic work is required to develop it, a qualifying project can begin.
HMRC illustrates this with the development of a new packaging tool. Where the design requires an advance in technology and involves planned trials to resolve uncertainty, the work undertaken to achieve that advance qualifies as R&D.
Similarly, in product design, most work may be routine. But if a specific constraint means no existing solution can be used, and a new component must be developed through experimentation, that element of the project may qualify.
Only the R&D Element Qualifies
A common mistake is to treat an entire commercial project as R&D.
HMRC is clear that only the activities directly contributing to resolving the technological uncertainty qualify. In a wider manufacturing project, this is often a relatively small portion of the overall work.
Equally important is identifying when R&D stops.
Once the uncertainty has been resolved and a working solution has been demonstrated, the qualifying activity ends. Subsequent work such as scaling up production, routine testing, or optimisation will not qualify unless further technological uncertainties arise.
Final Thought
Manufacturing projects often sit on the boundary between routine engineering and genuine R&D. The distinction is not always obvious, but it is critical. Taking the time to identify where uncertainty exists, and where it has been resolved, leads to more robust claims and avoids overstating activity that falls outside the guidelines.
If you would like to sense-check whether your work genuinely meets the criteria, feel free to get in touch with the team at Asquith Bhondi. We will always give you a clear and honest view.
