- Companies
- Property developers
- London
- Carboncut Labs Ltd
Carboncut Labs Ltd
- Company number
- 16864369
- Incorporated
- 19 Nov 2025
- Registered office
- 3RD Floor, 86-90, Paul Street, London, England, EC2A 4NE
- Nature of business
- Development of building projects; Other specialised construction activities n.e.c.; Other research and experimental development on natural sciences and engineering
Carboncut Labs Ltd is a newly incorporated private limited company registered in London, company number 16864369, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 19 August 2027, and its first CT600 is due at HMRC on 18 November 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.
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Where Carboncut Labs Ltd is registered
The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 4NE on a map.
Other trade companies in EC2A
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- Cenlora Cleaning Group LtdCleaning companies
Shared registered office
1,581 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Carboncut Labs 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 19 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Aug 2027 to 19 Sep 2027 | £150 |
| 1 to 3 months late | 20 Sep 2027 to 19 Nov 2027 | £375 |
| 3 to 6 months late | 20 Nov 2027 to 19 Feb 2028 | £750 |
| More than 6 months late | From 20 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16864369
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 November 2025
- Registered office
- 3RD Floor, 86-90, Paul Street, London, England, EC2A 4NE
- Nature of business
- Development of building projects (SIC 41100)
Other specialised construction activities n.e.c. (SIC 43999)
Other research and experimental development on natural sciences and engineering (SIC 72190) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Card East Ham Limited2025
- Cardiff Peninsula Consortium Limited2023
- Cardona Property Limited2023
- Caresle Ltd2017
- Carling Estates Limited2025
- Carlton City Limited2007
- Carlton Country Limited2007
- Carlton Development Group Ltd2001
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Carboncut Labs Ltd's accounts due?
Carboncut Labs Ltd's next accounts are due at Companies House by 19 August 2027 (in 310 days), covering the period to 30 November 2026.
When is Carboncut Labs 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 18 November 2026, due by 18 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Carboncut Labs Ltd still trading?
Carboncut Labs 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 Carboncut Labs Ltd do?
Carboncut Labs Ltd is registered under Development of building projects (SIC 41100); Other specialised construction activities n.e.c. (SIC 43999); Other research and experimental development on natural sciences and engineering (SIC 72190).
How old is Carboncut Labs Ltd?
Carboncut Labs Ltd was incorporated on 19 November 2025, less than a year ago.
What is the penalty if Carboncut Labs 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 Carboncut Labs 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.