Westlock Insights
Practical guidance on R&D tax relief, innovation incentives, and HMRC compliance, written for CFOs, founders, and technical leaders.
Explore topics, frameworks, and practical guidance
Short, technical notes on the merged scheme, defensible methodologies, and evidence expectations — written for CFOs, founders, and technical leads who want clarity without the noise.
Browse topics
Practical guidance on the merged scheme, HMRC processing trends, and claim methodology — with sector-led examples across Software & IT, MarTech, Engineering, Life Sciences, and more.
Merged scheme & compliance
How to frame qualifying activity, align AIF disclosures, and keep claims clear and consistent as HMRC processes evolve.
Explore →Claim methodology & cost categories
Practical guidance on apportionments, subcontractors, EPWs, overseas restrictions, and how to evidence assumptions properly.
Explore →Sector insights
Eligibility patterns and evidence expectations across Software & IT, MarTech, Engineering, Life Sciences, and more.
Explore →First merged-scheme claim: the 8 things to get right
A practical checklist to keep your narrative, AIF, and cost logic aligned — and reduce avoidable processing queries.
Explore →Presenting the credit in accounts & tax comp
Common processing delays we see when the gross credit isn’t clearly visible — and simple presentation fixes.
Explore →Subcontractors, EPWs & overseas work
What typically trips claims up under the merged rules — and how to structure the evidence and cost treatment.
Explore →AIF disclosures: what HMRC cross-checks
Where inconsistencies commonly arise between the AIF, report, and CT600 — and how to keep them aligned.
Explore →Apportionments that hold up
How to set defensible time/cost splits using project reality — not spreadsheet back-solves — and document assumptions.
Explore →Cloud, data & tooling costs
How to treat modern software cost bases (compute, environments, data) and avoid category-mapping errors.
Explore →Prototypes, pilots & go-live boundaries
Where R&D typically ends and BAU begins — and how to describe iterative deployment without undermining eligibility.
Explore →Grant funding & subsidised expenditure
How funding interacts with claim scope and why documenting the commercial framework matters as much as the tech.
Explore →RDEC payment mechanics explained
A plain-English walkthrough of the payment steps and why the cash outcome can differ from the headline credit.
Explore →Evidence packs that feel natural
Lightweight ways to stay organised: tickets, release notes, design docs, QA artefacts — without creating admin overhead.
Explore →MarTech-specific eligibility patterns
Where innovation usually sits in MarTech: attribution, identity resolution, experimentation platforms, and data pipelines.
Explore →Engineering: systems, integration & testing
How to evidence uncertainty and iterative resolution in mechanical/electrical work, integration programmes, and validation.
Explore →Browse topics
Practical guidance on the merged scheme, HMRC processing trends, and claim methodology…
Merged scheme & compliance
How to frame qualifying activity, align AIF disclosures, and keep claims clear and consistent as HMRC processes evolve.
Explore →Claim methodology & cost categories
Practical guidance on apportionments, subcontractors, EPWs, overseas restrictions, and how to evidence assumptions properly.
Explore →Sector insights
Eligibility patterns and evidence expectations across Software & IT, MarTech, Engineering, Life Sciences, and more.
Explore →-

R&D Pre-Notification Requirements: A Hidden Risk for Companies With Previously Rejected Claims
R&D Claims Previously Rejected? You May Need to Pre-Notify HMRC.
For companies whose previous R&D claims were rejected or withdrawn, particularly during HMRC’s high-volume compliance activity under the ISBC’s MREP initiative, the risk of falling within the pre-notification requirement is real.
Even if you’ve claimed before, a previously unsuccessful submission may not count as a valid claim for the purposes of exemption, meaning pre-notification could now be mandatory. -

Will the R&D Scheme Survive Another Reform Cycle?
With rising scrutiny, tightening budgets, and policy shifts on the horizon, the future of the UK’s R&D tax relief scheme is anything but certain. In this article, we explore the key drivers of reform, what may lie ahead, including proposals like mandatory Advanced Clearance, and how businesses can future-proof their claims in an evolving landscape.
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Lifecycle R&D – Recognising Qualifying Activities Across the Engineering Development Cycle
R&D isn’t typically confined to the initial design or prototyping stage. Within the broader engineering industry, innovation often continues through testing, refinement, integration, and production. In our latest article, we explore how qualifying R&D can arise throughout the entire product lifecycle and how businesses can better identify and substantiate these activities.
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Technical Uncertainty in Mechanical and Electrical Engineering R&D
Understanding and evidencing the resolution of scientific or technological uncertainty within your projects is crucial for demonstrating eligibility to claim R&D tax relief.
In our latest article, we delve into how to identify qualifying scientific or technological uncertainty in the context of Mechanical & Electrical Engineering. -

Spring Budget 2025: Key Takeaways and Westlock Partners’ Perspective on R&D Tax Relief Reforms
Chancellor's Spring Budget 2025—what does it mean for businesses? We've highlighted the key takeaways and shared our thoughts on the latest updates to R&D tax relief. Read our insights on what these changes could mean for innovation and investment.
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Autumn Budget 2024 - Key Takeaways
The Autumn 2024 Budget has introduced several significant changes that will impact UK businesses, especially regarding taxation and financial support. Read more on the implications of the budget in our latest article included below.
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Industry-Specific R&D Tax Relief Opportunities: A Software Perspective
As the tech landscape continues to evolve, software companies are finding innovative ways to solve complex challenges—many of which could qualify for R&D tax relief. Our latest article explores how software firms, from startups to established leaders, can leverage these opportunities to fund further growth. We dive into what constitutes R&D in software as well as providing industry-specific examples of qualifying activities.
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An Introduction to R&D Tax Relief: What it is & Who can Benefit
R&D tax relief is a government-backed initiative designed to incentivise innovation by providing financial support to companies investing in research and development. This article explores the basics of R&D tax relief, covering how it works, the types of businesses that qualify, and the wide range of activities that may fall under its scope—from developing new products to refining existing processes. Whether you're a start-up exploring new technologies or an established company driving industry advancements, understanding R&D tax relief could provide significant funding opportunities to fuel your growth.
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Capital Allowances & R&D Tax Relief – Are You Missing Out on Dual Benefits?
Discover how combining Capital Allowances and R&D Tax Credits can achieve more effective and comprehensive tax relief opportunities available for your business.