R&D Tax Relief UK

R&D Tax Relief, done properly.

Specialist support for UK limited companies claiming under the post-April-2024 R&D rules, from eligibility and costing through to robust documentation, submission support, and enquiry-ready evidence.

Expert-led technical and tax review
HMRC-aware methodology and documentation
Support for merged scheme and ERIS
Built for founders, finance teams, and technical leaders

Current UK Scheme Framing

Merged scheme or ERIS, assessed carefully.

The right route depends on the accounting period, the company's position, and the underlying claim facts. We help you assess the correct structure before numbers are pushed into a return.

Merged R&D Scheme

20% taxable expenditure credit

ERIS

For loss-making R&D-intensive SMEs meeting the relevant conditions

Claim notification may be required for some claimants, and the Additional Information Form is mandatory. Getting the process right matters as much as getting the technical position right.

UK limited companies within Corporation Tax scope

Software, engineering, manufacturing, product, science, and AI-led work

Robust technical narratives and defensible costing methodology

Works alongside your existing accountant, FD, or finance team

Who This Is For

Built for companies doing real technical work, not routine delivery.

This page is for UK limited companies that want a credible assessment of whether their projects qualify and a cleaner route through the claim process.

Software and product companies

Teams building non-routine software, infrastructure, platforms, data systems, or product capabilities where genuine technical uncertainty had to be resolved.

Engineering and manufacturing businesses

Companies improving processes, tolerances, materials, tooling, automation, or production outcomes beyond readily deducible industry practice.

Technical SMEs launching new products or systems

Businesses investing in prototypes, technical testing, performance breakthroughs, or appreciable improvements to products, processes, or internal systems.

Loss-making R&D-intensive SMEs

Companies exploring whether ERIS may apply where relevant R&D expenditure reaches the current intensity threshold and the business is loss-making.

Finance teams under time pressure

FDs, controllers, and founders who need a cleaner claim process, stronger evidence, and less internal disruption during year-end and Corporation Tax work.

What Counts As R&D?

Plain-English guidance on what HMRC is actually looking for.

The core test is not whether a project was commercially important. It is whether the company sought an advance in science or technology and had to resolve real technical uncertainty in the process.

Advance in science or technology

The project must seek more than commercial novelty. The work should aim to achieve a scientific or technological advance in the field, not simply adopt an existing tool or process.

Resolving technical uncertainty

There must be genuine uncertainty that competent professionals could not readily resolve at the outset. Routine implementation, configuration, or design choice is not enough.

Creating or appreciably improving something

Qualifying work can include products, processes, systems, or services where the underlying science or technology had to move forward in a meaningful way.

Failed projects can still qualify

A project does not have to succeed commercially or technically to qualify. What matters is that eligible R&D work was undertaken to resolve uncertainty.

Examples That May Qualify

New software architecture

Reworking architecture to solve non-routine scaling, latency, resilience, or interoperability constraints.

Performance and scalability breakthroughs

Solving bottlenecks where established methods were not sufficient for the required outcome.

Manufacturing process improvements

Developing new production methods, automation logic, tolerances, or materials behaviour.

Prototypes and technical testing

Iterating, testing, and documenting technical hypotheses where uncertainty was genuine.

Automation and control systems

Building technical systems that require new approaches to control, integration, reliability, or throughput.

AI and machine learning development

Work may qualify where the project resolves real technological uncertainty rather than simply applying standard models or tooling.

Eligibility always depends on the facts, the project evidence, and the period being claimed.

What You May Be Able To Claim For

Qualifying expenditure needs a disciplined methodology, not broad assumptions.

We help finance teams identify the relevant cost base, document how it has been selected, and keep the claim proportionate to the actual R&D undertaken.

Eligibility depends on the scheme, the accounting period, the facts, and how each cost relates to qualifying R&D activity.

Staff costs for employees directly engaged in qualifying R&D

Employer NIC and pension costs for qualifying staff

Subcontractor costs where the rules allow and the facts support inclusion

Externally provided workers where relevant

Software and cloud computing directly used in qualifying R&D

Consumables and materials used up in the R&D process

Current UK R&D Schemes

The scheme comparison should be clear before a claim is built.

For accounting periods beginning on or after 1 April 2024, the old SME and old RDEC regimes were replaced by the merged R&D expenditure credit scheme and ERIS. The correct route depends on the accounting period, the company profile, and the claim facts.

Merged R&D Scheme

Applies to accounting periods beginning on or after 1 April 2024

Taxable R&D expenditure credit

Current headline credit rate: 20%

Common route for many profitable companies and non-R&D-intensive claimants

ERIS

For loss-making R&D-intensive SMEs that meet the relevant conditions

Extra 86% deduction, giving a total 186% deduction

Payable credit worth up to 14.5% of the surrenderable loss

Current R&D intensity threshold: relevant R&D expenditure of at least 30% of total expenditure

Compliance note: the correct route depends on the accounting period, company profile, and claim facts. This page is general information, not tax advice for a specific set of circumstances.
How Our Process Works

A structured process designed to reduce internal workload and improve claim quality.

The goal is not just to produce a number. It is to build a claim pack that is better evidenced, better organised, and easier for finance and technical teams to support.

1. Discovery and eligibility assessment

We review the company, the accounting period, and the projects to determine whether there is a credible basis for a claim and which scheme may be relevant.

2. Technical and financial information gathering

We work with technical and finance stakeholders to gather project history, uncertainty evidence, staffing data, and cost records without creating unnecessary internal drag.

3. Cost analysis and claim methodology

We identify qualifying expenditure, apply the right methodology, and document how costs have been selected, apportioned, and supported.

4. Supporting narrative and schedules

We prepare the technical narrative, cost schedules, and supporting documentation in a format designed to stand up to scrutiny.

5. Claim notification and AIF support

Where relevant, we help assess whether claim notification is needed and make sure the required Additional Information Form is prepared properly.

6. Submission and HMRC follow-through

We support CT600 or CT600L filing with your accountant or finance team and help respond coherently if HMRC raises questions later.

Why Companies Choose Us

Deep technical and tax understanding rather than volume-led claim farming

Robust, enquiry-ready documentation built around methodology and evidence

A practical process that reduces the burden on founders, engineers, and finance teams

Clear scope and commercial communication from the outset

Works alongside your existing accountant or can integrate with wider Q Accountants support

Claims framed carefully for current HMRC expectations, not aggressive marketing rhetoric

Common Risks We Help You Avoid

Claiming projects that do not meet the science or technology test

Weak technical narratives that describe activity but not uncertainty or advance

Incomplete cost analysis or unsupported apportionment methodology

Missing claim notification deadlines where notification is required

Failing to submit the mandatory Additional Information Form

Overclaiming or building a claim with a weak evidence trail

Illustrative Case Studies

Examples of where a specialist, evidence-led process matters.

These are representative scenarios rather than public client endorsements. They show the kinds of situations where better technical review and cleaner documentation change the quality of the claim process.

Software infrastructure SME

Challenge

A scaling software company had multiple engineering streams but no clean way to distinguish routine platform work from genuine technological uncertainty.

What we assessed

We reviewed architecture changes, performance issues, and staffing time across several development areas to isolate the qualifying R&D work.

Outcome

Helped identify qualifying R&D across multiple projects, produced a robust claim pack aligned to the current rules, and reduced pressure on the internal finance lead.

Manufacturing process improvement business

Challenge

A manufacturer had invested heavily in new process design and testing but the evidence was scattered across production notes, spreadsheets, and engineering discussions.

What we assessed

We mapped the project chronology, documented the uncertainty, and built a cleaner cost methodology around the qualifying activities.

Outcome

Produced a more defensible technical and financial submission and gave management a clearer audit trail for future claims.

Loss-making product-led SME

Challenge

A product business wanted to understand whether its current position might bring it within ERIS, but internal teams were unclear on intensity and scheme fit.

What we assessed

We reviewed the accounting period, expenditure profile, and project evidence to assess whether the company appeared to meet the relevant conditions.

Outcome

Clarified the likely route, structured the claim process early, and reduced uncertainty for both the founders and their finance function.

R&D Tax Relief FAQ

Straight answers to the questions finance teams, founders, and technical leaders usually ask before moving ahead with a claim.

Make an Inquiry

Book a free R&D eligibility review

Share a short outline of your projects, the accounting period, and whether your business is currently profit-making or loss-making. We will review the position and follow up with the next sensible step.

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This content is general information for UK companies considering an R&D claim. Specific eligibility, claim treatment, and filing requirements depend on the accounting period and the company's facts.