- Companies
- Specialist contractors
- Structured Carbon Ltd
Structured Carbon Ltd
- Company number
- 16478799
- Incorporated
- 28 May 20251 year trading
- Registered office
- 6 Ivanhoe Road, Hogwood Industrial Estate, Finchampstead, Wokingham, Berkshire, RG40 4QQ
- Nature of business
- Other specialised construction activities n.e.c.
Structured Carbon Ltd is a 1-year-old private limited company registered in Finchampstead, Wokingham, company number 16478799, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 28 February 2027, and its first CT600 is due at HMRC on 27 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Structured Carbon Ltd is registered
The registered office is in Finchampstead, Wokingham (RG40), in the Wokingham local authority area, South East. Show RG40 4QQ on a map.
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What happens if Structured Carbon 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | 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
- 16478799
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 May 2025 (1 year ago)
- Registered office
- 6 Ivanhoe Road, Hogwood Industrial Estate, Finchampstead, Wokingham, Berkshire, RG40 4QQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 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
Other active specialist construction companies.
Frequently asked questions
When are Structured Carbon Ltd's accounts due?
Structured Carbon Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Structured Carbon Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 May 2026, due by 27 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Structured Carbon Ltd still trading?
Structured Carbon 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 Structured Carbon Ltd do?
Structured Carbon Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Structured Carbon Ltd?
Structured Carbon Ltd was incorporated on 28 May 2025, 1 year ago.
What is the penalty if Structured Carbon 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 Structured Carbon 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.