
HMRC has introduced a new R&D tax relief eligibility tool to help UK businesses check whether their projects qualify for research and development tax credits. The online checker simplifies the initial assessment process by guiding users through key questions about their project, though final eligibility still depends on HMRC’s review and supporting evidence.
In an effort to make R&D tax credit claims clearer and reduce submission errors, HMRC has rolled out a new R&D tax relief eligibility tool. This online checker allows businesses to gauge whether their projects meet the qualifying criteria for R&D tax purposes before submitting a formal claim.
Much like the IR35 CEST tool, the eligibility checker takes users through a detailed series of questions to assess whether their work meets HMRC’s definition of research and development. While the process takes roughly ten minutes, HMRC recommends that a ‘competent professional’ — someone qualified in the relevant field of science or technology — completes or assists with the technical sections.
The tool is designed for first-time claimants, companies new to R&D tax relief, or businesses unsure if their projects qualify. Although its use is not mandatory, HMRC “strongly encourages” businesses to use it, noting that while it is not a guarantee of acceptance, it is a reliable indicator of eligibility.
The questionnaire is divided into three sections:
If any answers suggest ineligibility, the tool immediately pauses and provides an explanation, allowing users to revise their responses. Once completed, results are displayed instantly, confirming either that the project “includes qualifying R&D for tax purposes” or outlining why it does not meet the criteria — for example, lacking a competent professional or insufficient information.
Businesses can preview, save, or print their results, and HMRC advises retaining these records as evidence for future reference. However, it’s important to note that the tool doesn’t assess all qualifying conditions — for instance, it doesn’t verify eligible costs or scheme selection. These aspects still need to be reviewed separately under HMRC’s official R&D guidance.
By simplifying the early stages of R&D tax relief assessment, the new tool aims to reduce confusion and prevent invalid claims — helping more UK businesses innovate with confidence.
Get in touch with Naail & Co Chartered Certified Accountants & Tax Advisors for tailored advice on R&D tax relief claims and eligibility.
The HMRC R&D tax relief eligibility tool is an online checker launched by HMRC to help businesses determine whether their projects qualify for research and development (R&D) tax relief before submitting a claim. It guides users through a series of structured questions about their project’s scientific or technological objectives and challenges.
The tool is designed for first-time claimants or companies with limited experience in R&D tax credits. It’s ideal for businesses unsure whether their project meets HMRC’s R&D definition or those seeking clarity before filing a claim.
No, using the R&D tax relief eligibility tool is optional. However, HMRC strongly encourages businesses to use it as an early step to reduce errors and improve claim accuracy.
No, the tool only provides an indicator of eligibility, not a guarantee. A full claim still requires meeting other conditions, such as verifying eligible costs and selecting the correct R&D scheme when submitting your application.
A competent professional is someone with relevant qualifications or experience in the field of science or technology related to the project. HMRC expects this person to have the technical expertise to assess whether the work sought a genuine scientific or technological advance.
According to HMRC, the average completion time is around 10 minutes, depending on the complexity of the project and the information available.
You’ll need details about your project’s purpose, the challenges faced, the work undertaken to overcome those challenges, and input from a competent professional familiar with the technical aspects.
If you’re unsure how to use the HMRC R&D tax relief eligibility tool or whether your project qualifies, it’s best to seek professional advice. Get in touch with Naail & Co Chartered Certified Accountants & Tax Advisors for expert guidance on R&D tax relief claims, eligibility assessments, and compliance with HMRC requirements.








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