R&D Expenditure Credit (RDEC)

As the UK’s leading specialist R&D tax consultancy, we’re here to help you get the most out of your RDEC claim.Our dedicated team provides an end-to-end service for larger businesses, allowing them to receive up to 20% tax relief on eligible expenses.

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    What is RDEC?

    Large companies (and certain SMEs) can claim a Research and Development Expenditure Credit (RDEC). This R&D Tax Credit is available for businesses working on projects that make an advance in science or technology.
    From 1 April 2020 to 31 March 2023, the RDEC rate was 13% of eligible R&D expenditure. From 1 April 2023, the rate rose from 13% to 20%.

    Is RDEC right for my business?

    Large companies, and SMEs unable to claim under the SME R&D Scheme, can generally apply for RDEC benefits. Companies are classed as large if they:
    • employ more than 500 people;
    • have a turnover of more than €100m and a balance sheet of more than €86m.

    Maximising RDEC Claims

    Leyton is the largest independent R&D tax consultancy in Europe with the highest volume of R&D tax claims across the UK.

    Many businesses often overlook qualifying research & development (R&D) expenditures, potentially missing out on valuable credits like the Research & Development Expenditure Credit (RDEC). This is where our team of experts, with their practical experience in scientific, technological, and engineering roles, come into play.

    Our consultants are educated to MSc/PhD level with 5+ years’ experience in industry, allowing them to work closely with your business to identify all qualifying expenditure to maximise the financial benefits you can claim. They have the skills to identify all eligible expenses, ensuring that no opportunities to claim back R&D expenses are missed.

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    Minimising risk

    Beyond just identifying expenses, our team’s expertise and familiarity with HMRC processes ensure that all claims are made in compliance with the latest laws and regulations.

    Leyton is a member of the HMRC consultative committee for R&D incentives. As a result, we meet with the HMRC team overseeing R&D quarterly.

    Identifying qualifying RDEC expenditure

    Qualifying R&D expenditure for the RDEC scheme might include staff costs; subcontracted R&D costs; software, cloud computing and data licences; externally provided workers (EPW) and even consumable items used in the R&D process.

    However, identifying these costs can often be complex and nuanced. That’s where our team’s experience becomes invaluable. Our experts, with their deep understanding of the legislation and practical field experience, will identify all potential qualifying expenditures. This ensures you’re claiming for every eligible cost, maximising the financial benefits you receive.

    Find out if you qualify today >

    Our Solution

    • Increase efficiency – Our experts will review your existing R&D record-keeping process and input improvements to help maximise the value of your claim
    • Mitigate risk – From a compliance perspective, our wealth of tax expertise and close links with HMRC ensure you are consistently aligned with new tax legislation and regulations, mitigating the risk of an enquiry.
    • Improve your net financial benefit – Our team are dedicated to maximising the potential value of claims, and our technical processes get under the skin of your business to uncover all possible areas which can be claimed for, rather than a one-size-fits-all approach.

    Our process


      Consultancy team introduction and key claim stakeholder identification. Previous R&D claims assessment and delivery timeline agreed.

      Financial Discovery

      Exploration of expenditure categories, R&D project expenditure data provision, financial document provision.

      Technical Scoping

      Review and discussion of all eligible projects, selection of key project(s) for claim substantiation (case study).

      Financial Discovery

      Introduction to expenditure categories, R&D project expenditure data provision, financial document provision.

      Claim Package

      Compilation of technical and financial documentation, internal quality audit and resolution of queries.


      Final documentation sign-off, tax benefit option agreement, detailed submission guidance and additional submission support.

    Other Leyton services which may interest you

    Our highly qualified in-house teams constantly monitor market develop­ment and government funding opportunities to provide the most up-to date cost saving solutions. We offer support around a number of other government schemes including:

    • Patent Box

      We identify, map and analyse patent tax relief opportunities.

    • Grants

      We help cutting-edge businesses to win innovation funding.

    • Land Remediation

      We help businesses claim back the costs of ‘cleaning up’ contaminated land.

    Our Partners

    Speak to one of our innovation funding specialists

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