A successful software R&D tax relief claim hinges on three things: clear eligibility, robust documentation, and a defensible link between qualifying activities and costs. For tech businesses, the challenge is rarely awareness of the scheme, it’s applying HMRC’s guidance consistently across fast‑moving development teams, evolving architectures, and agile delivery models.

We regularly see uncertainty around where R&D ends and business‑as‑usual begins, and how to evidence that boundary in a way that stands up to HMRC scrutiny. Below, we outline how to approach a robust, supportable software R&D claim.

What can be claimed?

HMRC has issued detailed guidance to clarify the boundary between routine software development and qualifying R&D. In practice, however, applying this guidance to real development projects is complex. The examples provided are often technology‑specific and don’t map neatly onto modern product development environments.

A common issue we see is businesses focusing on what the software does, rather than what had to be overcome technically to make it work. For R&D purposes, it’s the latter that matters. An advance in science or technology is demonstrated through the resolution of genuine technological uncertainty, not solely by the functionality delivered to users.

This means eligibility assessments need to go beyond product roadmaps and feature lists. They require a review of the technical work being undertaken, often at code, architecture, or system‑integration level. To do this properly:

• Software specialists must understand the R&D eligibility criteria

• Finance teams must work closely with technical leads

• Eligibility decisions must be made collaboratively, not in isolation

In our experience, claims often fail at this point due to poor communication between finance and development teams.

Applying R&D guidelines in an agile development environment

Although HMRC guidance includes case studies, these rarely reflect agile delivery models with multiple short‑duration sprints. As a result, many businesses struggle to apply R&D rules to their project records and default to preparing claims at a team level.

This is risky. Team‑level claims often lack clear linkage to specific technological challenges, making them difficult to defend once HMRC opens a check. Responses can quickly become vague and unconvincing.

In agile environments, it can become confusing when eligibility assessments are carried out at sprint or user‑story level. Sprints are typically too granular and often focus on delivery of a product rather than the technical uncertainty that the dev team are overcoming.

Instead, it is usually more reasonable to work at a higher level, commonly the EPIC level, where the broader technical enhancement, architectural change, or system‑level challenge can be properly assessed.

Linking costs to qualifying activity

Another common challenge is identifying and extracting the correct costs associated with R&D.

Without project‑based accounting, contractor and software costs are usually recorded under standard general ledger codes. There is often a temptation to claim a proportion of these costs, but this approach frequently results in non‑qualifying expenditure being included, leading to and difficult conversations with HMRC later down the road.

A robust claim requires:

• Clear linkage between costs and qualifying projects

• Input from technical teams to identify eligible work

• A process that produces an auditable, traceable cost trail

We have experience supporting both finance and technical teams in building this linkage, ensuring claims can be reconciled with source records with confidence.

Making a claim for capitalised costs

A misconception that we often see is around the capitalisation of development costs leading to being unable to claim. It is possible to claim R&D tax relief on capitalised development costs, but this area requires careful handling. Errors here often trigger detailed HMRC queries and can delay the cash benefit. Having tax specialists working alongside your R&D team is essential to navigating this aspect of the scheme correctly and efficiently.

Get it right — don’t leave it until it’s too late

Not all software development qualifies as R&D for tax purposes, even if it is described internally as “development”. HMRC has been clear that misunderstanding eligibility is a major source of error, particularly when it comes to claims around software. Given the sector’s historic error rates, software R&D claims are under increased scrutiny. Businesses must be confident that claims sit firmly within the eligibility boundary.

When signing off your next claim, would you be comfortable defending:

• Where R&D starts and ends?

• Why specific projects qualify?

• How costs link to technical uncertainty?

We can offer targeted training and support for senior finance and technical leaders to help them critically review claims and reduce risk before submission, or outsourcing of the claim preparation to take away the stress of submitting your claim. Whatever level of support you need we can help.

How we can help

We support scale‑up businesses in preparing robust, compliant software R&D tax credit claims. Our R&D tax specialists work closely with your finance and development teams to understand the technical challenges you’re solving and the commercial objectives behind them.

By taking the time to understand how your projects really work, we often identify more qualifying activity than clients had assessed initial, whilst ensuring claims remain fully compliant. We proactively manage the entire process, minimising disruption to your team and maximising the likelihood of a successful outcome.

If you’d like a no-obligation conversation about your R&D claim, fill in the form below and one of our experts will be in touch.