Accounting

R&D Tax Credits · South East

R&D tax credit claims in Lewes

If your Lewes 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 Lewes

Limited companies in Lewes 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 Lewes, step by step

  1. 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.

  2. 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.

  3. 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.

  4. 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 Lewes businesses file with IGI

No hourly rate and no surprise invoice. Lewes 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 Lewes get reminders at 60, 30 and 7 days before each date that applies to r&d tax credits.

We serve Lewes 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 Lewes and knows the file, so you are not re-explaining your business to a different helpdesk each time.

Plain English, with the numbers. Every draft for Lewes comes with a short explanation of what the figures mean and what, if anything, you should do about them.

You stay in control of r&d tax credits: drafts go to Lewes clients first, with the figures explained, and nothing leaves us until you say so.

Local facts

About Lewes

Lewes is in South East, in the BN7 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.

Nearby places we also serve for r&d tax credits
PlaceDistanceDirection
Wallands Park0.2 miW
St Anne's0.3 miSW
Landport, South East0.5 miN
Southover, Lewes0.5 miS
South Malling0.5 miNE
Cliffe, Lewes0.6 miE
Cuilfail0.8 miE
Southerham1 miSE

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

Under the Construction Industry Scheme, contractors deduct 20% from a registered subcontractor's labour invoices, or 30% if unregistered, and pay it to HMRC. The subcontractor reclaims the deductions against their actual tax through Self Assessment, usually producing a refund because deductions are on turnover while tax is on profit. Contractors file a monthly return by the 19th.

Late filing penalties

Penalties are the clearest reason to work to deadlines. A Self Assessment return one day late costs £100 regardless of whether any tax is due; three months late adds £10 a day. Late company accounts start at £150 and reach £1,500, and double if the previous year was also late. None of this is negotiable afterwards except through a narrow reasonable-excuse appeal.

Making Tax Digital for Income Tax

The biggest change to Self Assessment in a generation is Making Tax Digital for Income Tax, now live for higher-earning sole traders and landlords and arriving for the rest in stages. Quarterly updates are due by 7 August, 7 November, 7 February and 7 May, built from digital records. The practical consequence is that spreadsheet-and-shoebox bookkeeping is ending for anyone above the threshold.

The Self Assessment calendar

Four dates govern Self Assessment: 5 October to register, 31 October for paper returns, 31 January to file online and pay, and 31 July for the second payment on account. Missing the January date triggers an automatic £100 penalty before any tax is even considered, so we treat it as the fixed point around which the rest of the year is planned.

Payments on account

If your Self Assessment bill exceeds £1,000 and less than 80% of your tax was collected at source, HMRC asks for two advance payments towards the following year, each half of the current bill, due 31 January and 31 July. The first year this happens the January payment is effectively one and a half times the bill. We model it in advance and show you how to reduce the payments if income is falling.

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.

Questions

R&D Tax Credits questions from Lewes

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.

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.

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 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.

Do you have an office in Lewes?

No. IGI Accounting is an online-only firm. We serve Lewes 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 Lewes as anywhere else in the country, and why there is nothing to visit and nothing to print.

Is r&d tax credits in Lewes really the same price as elsewhere?

Yes. The fee published on this page is what a client in Lewes 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.

One message from Lewes, one fixed price

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote