- Companies
- Specialist contractors
- London
- Cuprum Wing Ltd
Cuprum Wing Ltd
- Company number
- 16276855
- Incorporated
- 26 Feb 20251 year trading
- Registered office
- 60 Tottenham Court Road Suite 795A, Fitzrovia, London, W1T 2EW
- Nature of business
- Other specialised construction activities n.e.c.; Wholesale of other machinery and equipment; Wholesale of wood, construction materials and sanitary equipment; Other transportation support activities
Cuprum Wing Ltd is a 1-year-old private limited company registered in London, company number 16276855, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 28 February 2026, as filed at Companies House.
Where Cuprum Wing Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 2EW on a map.
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Also registered at this address
1 other company uses the same registered office as Cuprum Wing Ltd.
- Grey Bird LtdSpecialist contractors
What happens if Cuprum Wing Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16276855
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2025 (1 year ago)
- Registered office
- 60 Tottenham Court Road Suite 795A, Fitzrovia, London, W1T 2EW
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Wholesale of other machinery and equipment (SIC 46690)
Wholesale of wood, construction materials and sanitary equipment (SIC 46730)
Other transportation support activities (SIC 52290) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 14 May 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Curalclad Ltd2021
- Curve Management Services Ltd2020
- Cva Construction Ltd2020
- CVG Instalation Ltd2021
- CWT Advisory Ltd2022
- D Advanced Ltd2019
- D B Carpentry London Limited2019
- D C Paul Limited2014
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Cuprum Wing Ltd's accounts due?
Cuprum Wing Ltd's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is Cuprum Wing Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Cuprum Wing Ltd still trading?
Cuprum Wing Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Cuprum Wing Ltd do?
Cuprum Wing Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Wholesale of other machinery and equipment (SIC 46690); Wholesale of wood, construction materials and sanitary equipment (SIC 46730); Other transportation support activities (SIC 52290).
How old is Cuprum Wing Ltd?
Cuprum Wing Ltd was incorporated on 26 February 2025, 1 year ago.
What is the penalty if Cuprum Wing Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Cuprum Wing Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.