R&D tax credit claims in Holland Park

Limited companies in Holland Park 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.

• 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

1. Scope the job

   We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.

2. Agree the price

   The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

3. Hand over the records

   Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.

4. Approve, then we submit

   You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.

Holland Park is in West London, within Kensington and Chelsea, in the W8 postcode district, England. For businesses in England the tax rules are those set by the UK Parliament: the 20/40/45% income tax bands, Class 4 National Insurance for the self-employed at 6% and 2%, Corporation Tax at 19% to 25%, and Stamp Duty Land Tax on property. Business rates are set locally by the council.

CIS deductions

The Construction Industry Scheme affects both sides of a construction payment. Contractors must verify subcontractors, deduct the right amount, issue statements and file monthly, with penalties from £100 for each late return. Subcontractors suffer deductions on turnover and recover the excess at the year end. Limited company subcontractors offset deductions against PAYE monthly instead.

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.

Payments on account

A common surprise in Self Assessment is the January payment that is far larger than expected. That is the balancing payment for the year just ended plus the first payment on account for the year ahead, which HMRC sets at half of the bill just calculated. We put the figure in your hands months ahead and tell you how to adjust it legitimately when circumstances change.

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.

Making Tax Digital for Income Tax

Making Tax Digital for Income Tax began in April 2026 for sole traders and landlords with qualifying income over £50,000, extends to those over £30,000 in April 2027 and is planned for £20,000 in April 2028. It requires digital records in compatible software and four quarterly updates to HMRC each year, with a final declaration replacing the traditional return. Payment dates are unchanged.

Late filing penalties

HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.

Corporation Tax rates and marginal relief

Companies pay Corporation Tax at 19% on profits up to £50,000 and 25% on profits over £250,000. Between those figures marginal relief applies, producing an effective rate that rises gradually and a marginal rate of 26.5% on each pound in the band. The thresholds are divided by the number of associated companies, so a director with two companies has thresholds of £25,000 and £125,000 for each.