- Companies
- Specialist contractors
- London
- Cai Sub Contract Ltd
Cai Sub Contract Ltd
- Company number
- 15745679
- Incorporated
- 28 May 20242 years trading
- Registered office
- 78 Monmouth Road, London, N9 0LG
- Nature of business
- Other specialised construction activities n.e.c.
Cai Sub Contract Ltd is a 2-year-old private limited company registered in London, company number 15745679, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £1,488 (+860.1%) on the year before, to £1,661.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £1,661 | £29K | £29K | 1 | |
| 31 May 2025 | £173 | £5,860 | £7,472 | 1 |
Where Cai Sub Contract Ltd is registered
The registered office is in London (N9), in the Enfield local authority area, London. Show N9 0LG on a map.
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What happens if Cai Sub Contract 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 15745679
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 May 2024 (2 years ago)
- Registered office
- 78 Monmouth Road, London, N9 0LG
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- 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 in London
Other active specialist construction companies registered in London.
- Cain Construction Services Ltd2024
- Calder Insulations Limited1982
- Calin Services Ltd2020
- Call Out Ltd2014
- Call Out Property Surveyors Limited2024
- Cam Safenet Ltd2023
- Camberley Mytchett Limited2022
- Camcai Holdings Limited2005
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Cai Sub Contract Ltd's accounts due?
Cai Sub Contract Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Cai Sub Contract Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Cai Sub Contract Ltd still trading?
Cai Sub Contract 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 Cai Sub Contract Ltd do?
Cai Sub Contract Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Cai Sub Contract Ltd?
Cai Sub Contract Ltd was incorporated on 28 May 2024, 2 years ago.
What is the penalty if Cai Sub Contract 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 Cai Sub Contract 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.