Specialist tax
R&D tax credit claims
Research and development tax relief rewards companies for spending money on resolving scientific or technological uncertainty. The definition is statutory and narrower than most people expect: the project must seek an advance in the overall knowledge or capability of a field of science or technology, not merely in the company's own knowledge, and must involve uncertainty that a competent professional in the field could not readily resolve from existing knowledge. A new product, a new app or a new process is not R&D by itself; what qualifies is the work done to overcome the technical problems that stood in the way, and only that work.
from £999 · fixed, per claim
Next deadlines
- R&D claim deadline: 2 years after the end of the accounting period (and the pre-notification window of 6 months after the period for first-time claimants)
- Company tax return (CT600) due 12 months after your year end (a 31 December year end files by 31 December)
- Corporation Tax payment, 9 months and 1 day after your year end (a 31 December year end pays by 1 October)
- R&D claim deadline: 2 years after the end of the accounting period (and the pre-notification window of 6 months after the period for first-time claimants)
Fees
Packages, fixed and published
£0
Eligibility review — do you have a claim?
£999
Full claim: technical narrative + computation + filing
£1,999
Larger claim (qualifying spend over £100k)
£POA — fixed quote after review
HMRC enquiry support on an existing claim
Who this is for
R&D Tax Credits
Limited companies in the UK that have tried to achieve an advance in science or technology and faced genuine uncertainty doing it: software firms building something that did not exist, manufacturers developing new processes or materials, engineering businesses solving problems off the standard path, and food, biotech and clean-tech companies with development spend to recover.
What is included
Inside the fixed fee
- Eligibility review against the statutory definition of R&D for tax purposes, with a written yes or no
- Advance notification to HMRC within six months of the period end for first-time and lapsed claimants
- Technical narrative for each project: the scientific or technological uncertainty, the advance sought and how it was resolved
- Qualifying expenditure computed: staff costs, subcontractors, externally provided workers, software, consumables and data
- The Additional Information Form completed and submitted before the CT600 is filed
- Claim entered on the CT600 and the relief or payable credit tracked through to HMRC's payment
In detail
How r&d tax credits works
For accounting periods beginning on or after 1 April 2024 the two old schemes have been merged into a single expenditure credit worth 20% of qualifying costs, which is itself taxable, so the net benefit is around 15% for a company paying the main rate of Corporation Tax and 16.2% at the small profits rate. Loss-making companies whose R&D spend is at least 30% of total expenditure qualify as R&D-intensive and can claim a payable credit worth up to 27% of qualifying spend. Qualifying costs are staff costs apportioned to R&D time, externally provided workers and subcontractors at 65%, software and cloud computing, data licences and consumables used up in the work.
The administration has tightened sharply since 2023 and is where most failed claims go wrong. Companies that have not claimed in the previous three accounting periods must notify HMRC of their intention within six months of the end of the period, and a missed notification kills the claim for that period outright. Every claim must be preceded by an Additional Information Form submitted to HMRC before the CT600, giving project narratives, a cost breakdown by category, the named senior officer who takes responsibility and any adviser involved. HMRC's compliance campaign now checks a large proportion of claims, and claims without a defensible narrative or with costs that do not reconcile to the accounts are being reduced or rejected with penalties.
We approach this in the order HMRC does. The eligibility review is free and ends with a written view: the projects qualify, they do not, or they are borderline, with reasons. Only if they qualify do we proceed to the £999 claim, or £1,999 where qualifying spend exceeds £100,000. We interview the competent professional who did the work, write the technical narrative in the structure HMRC's guidance expects, with the baseline, the uncertainty, the advance and the resolution set out for each project, and build the cost computation from payroll, the ledger and timesheets or a documented apportionment. The form is submitted, the claim is entered on the CT600 and we track it through to the Corporation Tax reduction or the credit landing in your account.
Our fee is fixed because the alternative, a percentage of the benefit, creates the wrong incentive. An adviser paid 20% of the credit is paid more for a bigger claim whether or not it is right, and the company carries the enquiry risk alone when HMRC asks questions two years later. A fixed fee means our only interest is a claim that is accurate and survives scrutiny, and for most small companies it is also considerably cheaper. For companies already facing an enquiry into a claim made elsewhere, we review the position frankly, quote a fixed fee per stage, and advise settlement where the claim was overstated rather than spending your money defending it.
Process
From first message to filed
Tell us your situation
A short message or call about what you do and what needs filing. We ask the questions that determine the right package and nothing more.
Fixed fee in writing
You receive one price for the work, confirmed by email before anything starts. It does not change if the job takes longer than we expected.
Send records, review the draft
Records come by WhatsApp or email. We prepare the draft, explain the figures in plain English and answer your questions.
We file, you get the receipts
Once you approve and the fee is settled, we submit electronically and forward the HMRC or Companies House acknowledgement the same day.
Worth knowing
Rules that come up in this work
Record keeping
Record keeping is a legal obligation with a penalty of up to £3,000 for failure, but its real value is in making every other filing cheaper and more defensible. Keep invoices, receipts, bank statements, mileage logs and any HMRC correspondence, digitally if you like, for five years after the relevant filing deadline for individuals and six years for companies and VAT.
Allowable expenses
The expenses sole traders most often miss are home working costs, claimed by actual proportion or HMRC's flat rate, the business share of phone and internet, mileage at 45p for the first 10,000 business miles, and training that maintains existing skills. The ones most often claimed wrongly are commuting, entertaining customers and clothes that could be worn outside work.
Crypto records and reporting
HMRC treats cryptoassets as property. Swapping one token for another, spending crypto or gifting it are all disposals for Capital Gains Tax, and staking and lending rewards are income. Gains are computed under pooling rules with same-day and 30-day matching. From 2026 HMRC receives data from exchanges worldwide under the Cryptoasset Reporting Framework, so unreported activity is increasingly visible.
The 60-day property CGT return
Selling UK residential property that was not your main home for the whole period of ownership triggers a separate Capital Gains Tax return, due within 60 days of completion along with payment of the tax. This is in addition to the annual Self Assessment. The gain is taxed at 18% or 24% depending on your income band, after the £3,000 annual exempt amount.
Dormant companies
A dormant company is one with no significant accounting transactions in the year, where the only permitted entries are the payment for shares on incorporation, Companies House fees and penalties. It still files a confirmation statement and simplified dormant accounts every year. A bank charge or an accountant's fee paid from the company ends dormancy and requires full accounts.
The trading and property allowances
The first £1,000 of trading income and, separately, the first £1,000 of property income each year is tax free under the trading and property allowances. Below those figures no return is needed for that income. Above them you can deduct the £1,000 allowance instead of actual expenses if that is better, which suits side businesses and single-room lets with few costs.
Employer National Insurance
The cost of an employee is more than the salary. Employer National Insurance at 15% above £5,000 a year, the 3% minimum pension contribution, holiday pay, equipment and management time all come on top. The Employment Allowance of £10,500 reduces the National Insurance for most employers with more than one person on the payroll.
Questions
R&D Tax Credits: your questions answered
Why is the eligibility review free?
Because a large share of enquiries do not qualify, and we would rather tell you that for nothing than charge £999 for a claim HMRC rejects. The review takes a short call and some questions about the projects. You get a written view: qualifies, does not qualify, or borderline with the reasons. There is no obligation afterwards.
What counts as R&D for tax purposes?
A project seeking an advance in overall knowledge or capability in a field of science or technology, through the resolution of scientific or technological uncertainty that a competent professional in the field could not readily resolve. Commercial novelty is not enough; routine development with known methods is not enough. The test is about the technology, not the product.
How much is the relief worth under the merged scheme?
For accounting periods starting on or after 1 April 2024 the merged scheme gives a 20% expenditure credit, taxable, so worth around 15% to 16.2% of qualifying spend net of tax. Loss-making companies spending at least 30% of total expenditure on R&D can claim the enhanced intensive rate, worth up to 27%.
What costs qualify?
Staff costs including employer NI and pension for time spent on R&D, externally provided workers at 65%, subcontracted R&D at 65% with new rules on who claims, software licences, cloud computing and data costs, consumables transformed or used up in the R&D, and some clinical trial payments. Capital spend, rent and marketing do not qualify.
What is the advance notification requirement?
Companies that have not claimed in the previous three accounting periods must notify HMRC of their intention to claim within six months of the end of the period. Miss it and the claim for that period is lost entirely. We check your position at the eligibility stage and file the notification as part of the service.
What is the Additional Information Form?
Since August 2023 every R&D claim must be accompanied by a form submitted to HMRC before the CT600, giving project descriptions, cost breakdowns, the named senior officer responsible and any agent involved. Claims without it are removed from the return. We complete and submit it as part of the £999 fee.
How long does a claim take to pay out?
HMRC aims to process 85% of claims within 40 days but the compliance campaign has lengthened this for many. Relief reducing a Corporation Tax bill takes effect when the return is processed; payable credits are paid to the company's bank account. We track the claim and chase HMRC if it stalls.
Why do you charge a fixed fee rather than a percentage?
Percentage fees reward inflating the claim, which is exactly what HMRC's campaign targets. A fixed fee means our only interest is a claim that is right. For most small company claims £999 is also considerably cheaper than the 15% to 30% of benefit that contingent advisers charge.
What if HMRC opens an enquiry into an existing claim?
We review the claim, the narrative and the cost basis, tell you how robust it is, and quote a fixed fee for handling the enquiry before any work starts. Where a claim was overstated by a previous adviser, the best outcome is often an agreed reduction, and we say so rather than fight a losing position at your expense.
Can I claim for subcontracted work?
Under the merged scheme the company that decides to undertake the R&D and bears the risk generally claims, even if it subcontracts the work. Subcontractor costs are included at 65%. Overseas subcontractor and worker costs are largely excluded unless the conditions cannot be met in the UK. We apply the rules to your contracts.
How far back can I claim?
A claim can be made up to two years after the end of the accounting period, by amending the CT600. If you have two open periods both can be claimed. The notification rule applies to the later periods if you have not claimed recently, so the two-year window and the six-month window interact; we check both.
Does claiming R&D relief increase my chance of an enquiry?
HMRC now checks a far higher proportion of claims than before 2023, so any claim carries some risk of questions. A claim with a clear technical narrative, costs that reconcile to the accounts and payroll, and a named competent professional behind it is answered quickly. We write claims to that standard.
Where
R&D Tax Credits across the UK
This service has a local page for the 1,680 larger towns and cities we cover, and is delivered nationally everywhere else. A selection:
- Acton Green, Ealing
- Bakers Arms
- Becontree
- Becontree Heath
- Blackhorse Road
- Boston Manor
- Brentford Lock
- Carshalton Beeches
- Chadwell Heath
- Charing Cross, Westminster
- Dulwich Village
- Enfield Highway
- Enfield Lock
- Harrow Town Centre
- Hatton, Hounslow
- Headstone
- Hendon, Barnet
- Highams Park
- Hounslow Central
- Hounslow Heath
- London Bridge
- Marks Gate
- Mitcham Eastfields
- Mitcham Junction
- Old Kent Road
- Peckham Rye
- Plumstead
- Royal Docks
- Rush Green, Havering
- Sipson
- South Chingford
- South Woodford
- Stockley Park
- Tooting Bec
- Tooting Broadway
- Uxbridge Moor
- West Hendon
- West Hill, Wandsworth
- Whipps Cross
- Wood Street, Waltham Forest
England: Central London · East London · East Midlands · East of England · M25 Fringe · North East · North East London · North London · North West · North West London · South East · South East London · South London · South West · South West London · West London · West Midlands · Yorkshire
Scotland: Scotland
Wales: Wales
Northern Ireland: Northern Ireland
Related
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Get r&d tax credits for a fixed fee
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.