R&D Tax Credits · East of England
R&D tax credit claims in Cambridge
R&D tax credit claims for companies in Cambridge, starting with a free eligibility review that tells you honestly whether you have a claim. If you do, the full claim is £999 fixed: technical narrative, computation, the Additional Information Form and filing. The fee is published and the same in Cambridge as in every part of England.
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 Cambridge
Limited companies in Cambridge 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 Cambridge, 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
The IGI way of working, in Cambridge
One fixed fee for r&d tax credits in Cambridge, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.
Nothing for Cambridge is left to the last week. Each deadline relevant to r&d tax credits is tracked from the day you join, with the next four shown on every page we send you.
We serve Cambridge 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 Cambridge 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 Cambridge business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for Cambridge 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 Cambridge
Cambridge is in East of England, in the CB1 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 |
|---|---|---|
| Peter's Field | 0.5 mi | NW |
| Brookfields, Cambridge | 0.6 mi | E |
| Barnwell | 0.6 mi | N |
| Romsey Town | 0.6 mi | SE |
| Newtown, Cambridge | 0.7 mi | W |
| Butt Green, East of England | 0.9 mi | NW |
| Midsummer Common | 1 mi | NW |
| Jesus Green | 1 mi | NW |
Worth knowing
Rules that come up in this work
Confirmation statements and identity verification
Companies House has tightened its requirements under the Economic Crime and Corporate Transparency Act: every company needs a registered email address and an appropriate registered office, every statement includes a lawful-purpose declaration, and every director and PSC must verify their identity. The confirmation statement, due annually with a £50 fee, is where most of this is confirmed.
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.
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.
Corporation Tax rates and marginal relief
Corporation Tax is not a flat rate. Profits to £50,000 pay 19%, profits above £250,000 pay 25%, and the band between is taxed at an effective marginal rate of 26.5% through the marginal relief mechanism. Associated companies share the thresholds, which catches directors who own more than one company and is the most common cause of underpaid tax in owner-managed groups.
Salary versus dividends
Directors of their own companies usually take a salary at or just above the National Insurance thresholds, which keeps the year qualifying for State Pension and is deductible for Corporation Tax, with further income as dividends. Dividends above the £500 allowance are taxed at 10.75%, 35.75% and 39.35% by band and can only be paid from distributable profits after tax, with a minute and voucher each time.
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 Self Assessment calendar
Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.
Questions
R&D Tax Credits questions from Cambridge
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.
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.
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.
Which deadlines matter most for r&d tax credits?
The next four dates that apply to r&d tax credits are shown at the top of this page, calculated from today. For Cambridge clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.
How do I get started from Cambridge?
Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for r&d tax credits. Once you confirm, we tell you exactly which records to send and the work begins. Most Cambridge clients are set up within a day.
Let us take the deadlines off your plate in Cambridge
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.