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R&D Tax Relief Claims & Reviews

The R&D regime has tightened considerably. We prepare claims that will survive scrutiny, and we review other people's claims before they are submitted.

Who this is for

Software, engineering and product companies doing genuine development work under the merged scheme, and loss-making businesses that may qualify as R&D intensive. It is equally for directors who have been handed a claim by another adviser and want it checked before they sign, or who have already received an HMRC enquiry.

10Named areas on this page
5Chapters, in the order the work happens
Fixed feeAgreed in writing before anything starts
CharteredReviewed and signed off before it leaves us
On this page · 10 areas

01Before you claim 2 areas

R&D Eligibility Assessment

An honest read on whether the work qualifies before anyone spends money on a claim.

The assessment starts with a conversation with the people who did the work, not the finance team. We test each project against the statutory definition: a competent professional, a scientific or technological uncertainty, and an attempt to resolve it that went beyond routine adaptation. You receive a short written view on which projects qualify, which do not, and where the evidence is thin. If nothing qualifies, we say so, and the R&D eligibility assessment ends there.

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Grant & Subsidised Expenditure Interaction

How grant funding affects the relief available and how to structure around it.

Innovate UK awards, local growth funds and customer-funded development all raise the same question: who is entitled to claim, and on what. The treatment changed when the merged scheme arrived, and assumptions carried over from the old SME rules are often wrong. Before a grant agreement is signed, we look at the grant and subsidised expenditure interaction on the specific project, including who bears the risk and who contracted the work. You receive a written position that the claim is then built on.

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02Preparing the claim 4 areas

Merged RDEC Scheme Claims

Full claim preparation under the merged scheme for accounting periods in scope.

Merged RDEC scheme claims are built from the ledger up: qualifying projects identified, costs traced to payroll and purchase records, and the credit computed and brought into the CT600 with the right disclosures. Contracted-out R&D and overseas expenditure rules are worked through project by project rather than assumed. The claim pack you receive includes the computation, the supporting schedules and the narrative, so the file can be picked up later by anyone, including HMRC.

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Enhanced R&D Intensive Support (ERIS)

Claims for loss-making R&D intensive SMEs meeting the intensity condition.

Enhanced R&D Intensive Support depends on a ratio: relevant R&D expenditure measured against total expenditure across the company and, where relevant, connected companies. We compute the intensity condition properly rather than estimating it, check the SME test, and confirm that the loss position supports a payable credit. Where a company narrowly misses in one year, we explain how the grace period operates so the claim strategy for the following period is clear. The ERIS computation sits alongside the merged scheme workings in the same claim pack.

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Technical Narrative Preparation

Writing the advance in science or technology and the uncertainty in HMRC's language.

A good technical narrative is written with your engineers or scientists, not for them. We interview the competent professionals, identify the baseline that existed at the start, and describe what was uncertain, what was attempted and what was learned, in the structure HMRC's caseworkers expect to read. Marketing language and product features are left out. The result is a narrative that matches the cost schedule line by line, which is what an enquiry will test first.

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Cost Schedule & Apportionment

Staff time, EPWs, subcontractors, consumables, software and cloud, apportioned defensibly.

The cost schedule is where claims most often come apart under scrutiny, so each line is tied to a source: payroll records for staff, invoices for externally provided workers and subcontractors, and licence or usage statements for software, data and cloud computing. Apportionments are agreed with the people who managed the projects and documented, with the reasoning recorded. Every figure you sign off reconciles back to the accounts, so the cost schedule and apportionment can be reproduced years later if HMRC asks.

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03Filing 1 area

Additional Information Form & Pre-Notification

AIF submission and claim notification within the statutory deadlines.

Two filings now sit in front of every R&D claim. Pre-notification must reach HMRC within the notification window for a first claim or after a gap in claiming, and a missed window ends the claim before it starts. The Additional Information Form then has to be submitted before the CT600 that carries the claim, naming the projects, costs and agent involved. We diarise both dates from your accounting period, prepare the forms from the claim pack and keep the submission receipts on file.

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04Review and defence 2 areas

Second Opinion & Claim Review

Independent review of a claim prepared by another adviser before you sign it.

The director signs the CT600, not the boutique that prepared the claim, and the liability for an overstated claim sits with the company. A second opinion and claim review reads the narrative against the statutory tests, traces the cost schedule to your records and checks the merged scheme or ERIS computation. You get a written report listing what is sound, what is overstated and what is missing, so you can decide whether to file as drafted, revise, or withdraw before HMRC ever sees it.

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R&D Enquiry Defence

Responding to HMRC challenges, information notices and rejected claims.

An R&D enquiry opens with a long list of questions and a short deadline. We take over the correspondence, agree a timetable with the caseworker and answer with evidence rather than assertion: project records, the competent professional's account and the cost reconciliation. Where a claim is rejected or an assessment raised, we set out the grounds for review and prepare the file for alternative dispute resolution or appeal if it cannot be settled by correspondence. R&D enquiry defence is offered on the same terms for claims prepared elsewhere.

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05Beyond R&D 1 area

Patent Box

Election, streaming and the relevant IP profit calculation.

Patent Box is worth considering once a qualifying patent has been granted or is pending, provided the company has taken part in developing the invention. The work involves making the election in time, identifying the income streams that flow from the qualifying IP, and calculating relevant IP profits using the streaming rules and the R&D fraction that links back to your claim history. We model the benefit before the election is made and prepare the computation and CT600 entries each year it applies.

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Related
Questions

Frequently asked

What counts as R&D for tax relief purposes?

A project qualifies if it seeks an advance in science or technology by resolving a scientific or technological uncertainty that a competent professional in the field could not readily resolve. Building something new for your own business is not enough on its own; the advance has to be to the field, not just to you. We test each project against those conditions before any claim is prepared and tell you honestly if it does not qualify. Read more.

What is the merged R&D scheme and who can claim?

For accounting periods beginning on or after 1 April 2024, the separate SME and RDEC regimes were replaced by a single merged scheme that gives an above-the-line credit to companies of every size, with loss-making R&D intensive SMEs able to claim enhanced support instead. Which route applies depends on your period, your size and your intensity ratio. We identify the correct regime, prepare the computation and file the claim with the CT600. Read more.

Do I need to notify HMRC before making an R&D claim?

If you have not claimed R&D relief in the last three years, you must submit a claim notification within six months of the end of the accounting period, or the claim cannot be made at all. Every claim also needs an Additional Information Form submitted before the CT600, with project descriptions and cost breakdowns. We diarise both deadlines and prepare the forms as part of every claim we handle. Read more.

Can you review an R&D claim prepared by another adviser?

Yes. Before you sign a claim you are responsible for, we review whether the projects meet the definition of R&D, whether the costs are in the right categories and correctly apportioned, and whether the technical narrative would stand up to an HMRC compliance check. You receive a written view on what is well supported, what is at risk and what we would change, so the decision to submit is an informed one. Read more.

What happens if HMRC opens an enquiry into my R&D claim?

HMRC will write asking for evidence that the projects meet the definition of R&D and that the costs claimed are correct, usually with a deadline and a detailed list of questions. The quality of the first reply matters, because it sets the terms for everything that follows. We take over the correspondence, prepare the technical and financial responses with your engineers, and where a claim has been rejected we request a review or appeal where the grounds exist. Read more.

Despite having very messy accounts ruined by our previous accountants, Bilal spotted inconsistencies and was patient with all the concerns we had. We filed our annual accounts and helped us with the R&D tax credits report flawlessly. Highly recommended!
Alina Iigilikova
Review from Google
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