R&D Tax Credits · South East
R&D tax credit claims in Maidenhead
If your Maidenhead company has spent money trying to resolve a technical problem that competent professionals could not readily solve, you may have an R&D claim worth up to 16.2% of the spend under the merged scheme, or more as a loss-making R&D-intensive company. We review eligibility free, then prepare and file for a fixed fee.
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)
Who this is for
R&D Tax Credits for Maidenhead
Limited companies in Maidenhead 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
Everything 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
How it works
R&D Tax Credits from Maidenhead, step by step
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.
Why IGI
Why Maidenhead businesses file with IGI
No hourly rate and no surprise invoice. Maidenhead clients know the fee for r&d tax credits before they send a single document, and it stays fixed.
We work to the HMRC and Companies House calendar, not an appointment diary. Clients in Maidenhead get reminders at 60, 30 and 7 days before each date that applies to r&d tax credits.
We serve Maidenhead remotely by design: records by WhatsApp or email, drafts back for approval, filing electronic. The saving on premises is passed to you in the fee for r&d tax credits.
A named person handles your r&d tax credits from Maidenhead and knows the file, so you are not re-explaining your business to a different helpdesk each time.
We explain r&d tax credits in the words Maidenhead business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for Maidenhead until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.
Local facts
About Maidenhead
Maidenhead is in South East, in the SL6 postcode district, England. Income tax in England follows the UK rates: 20% basic to £50,270, 40% higher to £125,140 and 45% additional, with the personal allowance of £12,570 tapered away above £100,000. National Insurance, VAT and Corporation Tax are UK-wide, and Stamp Duty Land Tax applies to property purchases.
| Place | Distance | Direction |
|---|---|---|
| North Town, Windsor and Maidenhead | 0.6 mi | N |
| Town, North | 0.6 mi | N |
| Ellington Park | 0.7 mi | NW |
| Fishery | 0.7 mi | SE |
| Boyn Hill | 0.7 mi | SW |
| Bray Wick | 0.9 mi | S |
| Wick, Bray | 0.9 mi | S |
| Desborough Crescent | 1 mi | SW |
Worth knowing
Rules that come up in this work
Confirmation statements and identity verification
The confirmation statement is the annual check that the public register is right: officers, registered office, SIC codes, shareholders and the PSC register. It carries a £50 fee and no financial penalty for lateness, but failure to file leads to compulsory strike-off. The identity verification regime introduced in November 2025 has added a further check to every statement.
CIS deductions
CIS turns construction subcontractors into advance taxpayers: a fifth of every labour payment goes to HMRC before they see it. Registering keeps the rate at 20% rather than 30%; gross payment status, for established businesses with a clean record, removes deductions altogether. The annual return is where the overpayment comes back, and filing it early brings the refund sooner.
Switching accountants
The main reasons people switch accountant are surprise invoices, missed deadlines and not understanding what they are being told. Switching involves a clearance letter between the firms, a transfer of records and agent authorisations, and a short handover of the current position. It takes about two weeks and should cost nothing extra.
Salary versus dividends
The salary-and-dividend split is the central planning decision for an owner-managed company. Salary costs employer National Insurance above £5,000 but is deductible; dividends are not deductible but attract lower personal rates and no National Insurance. The optimum changes each April with the thresholds and depends on the director's other income, so it should be set deliberately every year.
Closing a company
Voluntary strike-off is available only to solvent companies. One that owes money it cannot pay needs a creditors' voluntary liquidation through a licensed insolvency practitioner, and directors who dissolve an insolvent company face personal consequences. For a solvent company the process takes three to four months from filing the DS01, with notice to creditors and shareholders within seven days.
Director's loan accounts
Money taken from a company has to be something: salary, dividend, expense reimbursement or loan. If it is a loan and remains outstanding nine months after the year end, the company pays tax at the dividend higher rate on it until it is repaid. Clearing the balance with a properly declared dividend before the deadline, where reserves allow, is routine year-end work.
The VAT registration threshold
Watching the rolling twelve-month turnover figure is one of the quiet jobs of monthly bookkeeping, because the £90,000 VAT threshold arrives silently. Crossing it brings quarterly returns, Making Tax Digital software and a decision about schemes. Crossing it late brings a bill for VAT you could not recover from customers and a penalty for failing to notify.
Questions
R&D Tax Credits questions from Maidenhead
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 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.
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.
Do you have an office in Maidenhead?
No. IGI Accounting is an online-only firm. We serve Maidenhead and every other UK postcode remotely, with records sent by WhatsApp or email and everything filed electronically. The absence of local premises is why the fee for r&d tax credits is the same in Maidenhead as anywhere else in the country, and why there is nothing to visit and nothing to print.
Is r&d tax credits in Maidenhead really the same price as elsewhere?
Yes. The fee published on this page is what a client in Maidenhead pays and what a client in any other part of England pays. It is confirmed in writing before work starts and the invoice matches the quote. Where a higher package applies because your situation is more complex, we say so at the quote stage, never afterwards.
Ready to fix your fee in Maidenhead?
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.