R&D Tax Credits for Construction Companies: Do You Qualify?

Quick answer: Yes, UK construction companies can qualify for R&D tax credits where a project seeks an advance in science or technology and resolves technical uncertainty, such as novel structural methods, new materials or difficult ground engineering. Qualifying work is relieved under the merged scheme, currently a 20% expenditure credit.

Construction is one of the sectors most likely to leave R&D tax relief unclaimed, because the qualifying work often looks like ordinary problem-solving on site rather than laboratory research. The test is not whether a project is innovative in a commercial sense, but whether it seeks a genuine advance in science or technology, as defined in HMRC's guidelines on the meaning of R&D. This guide explains where construction work does and does not qualify. For a closely related sector, see our guide to R&D tax credits for engineering companies.

Do Construction Companies Qualify for R&D Tax Credits?

Yes, in principle, where the work clears the same test that applies to every sector. A project qualifies where it seeks an advance in science or technology through the resolution of scientific or technological uncertainty. The advance has to be in the underlying science or technology, not simply a new building or a first-for-the-company project [own-analysis]. Our construction sector page sets out the kinds of projects we most often see qualify.

What Kind of Construction Work Counts as R&D?

The qualifying work tends to sit where a project runs into a technical problem that competent professionals cannot readily solve using existing knowledge. Common examples include developing novel structural or foundation techniques, adapting materials to perform in unproven ways, integrating complex building services, and solving difficult ground or environmental engineering challenges, where each involves resolving real technical uncertainty [own-analysis]. Bespoke software or modelling written to support these problems can also form part of a claim where it meets the statutory definition of R&D.

What Does Not Count as R&D in Construction?

This is where over-claiming happens, so it is worth being blunt. Work that applies established techniques to a known specification, even on a large or prestigious project, generally does not qualify, and neither do purely aesthetic, planning or commercial decisions [own-analysis]. If a competent professional in the field could have resolved the problem without genuine uncertainty, the work falls outside the meaning of R&D. Getting this boundary right is exactly what reduces the risk of an HMRC enquiry later.

How Much Could a Construction Company Claim?

The value depends entirely on qualifying spend, not on a sector average. Qualifying work is relieved under the merged scheme, currently a 20% expenditure credit for accounting periods beginning on or after 1 April 2024, applied to eligible staff, materials, subcontractor and software costs. Our eligible expenditure guide breaks down which costs count, and our free R&D tax relief calculator gives an indicative range from your own figures.

Get a Written View, No Call Required

If you have a construction project and are unsure whether it qualifies, reply and we will send a free written eligibility assessment within 48 hours, no call involved [own-analysis].