- Companies
- Civil engineering
- London
- Jjec Corporation Ltd
Jjec Corporation Ltd
- Company number
- 14644540
- Incorporated
- 7 Feb 20233 years trading
- Registered office
- 11 Loughborough Road, London, SW9 7TA
- Nature of business
- Construction of railways and underground railways; Retail sale via mail order houses or via Internet; Other letting and operating of own or leased real estate; Other engineering activities
Jjec Corporation Ltd is a 3-year-old private limited company registered in London, company number 14644540, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
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 £2,240 (+41.5%) on the year before, to £7,639.
- Current assets of £18K against £10K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £7,639 | £18K | £10K | 1 | |
| 29 Feb 2024 | £5,399 | £12K | £11K | 1 |
Where Jjec Corporation Ltd is registered
The registered office is in London (SW9), in the Lambeth local authority area, London. Show SW9 7TA on a map.
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What happens if Jjec Corporation 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 14644540
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2023 (3 years ago)
- Registered office
- 11 Loughborough Road, London, SW9 7TA
- Nature of business
- Construction of railways and underground railways (SIC 42120)
Retail sale via mail order houses or via Internet (SIC 47910)
Other letting and operating of own or leased real estate (SIC 68209)
Other engineering activities (SIC 71129) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 6 February 2026
- Previous names
- Jjec Coropartion Ltd (until 18 Oct 2023)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
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- JJM Utilities Ltd2010
- Jkander Ltd2014
- JLB Electrical Contractor Ltd2020
- JM Hodgetts Limited2018
- Jnpinitiative Ltd2026
- Jod Solutions Ltd2021
- Joe Carey Ltd2023
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Jjec Corporation Ltd's accounts due?
Jjec Corporation Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Jjec Corporation Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Jjec Corporation Ltd still trading?
Jjec Corporation 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 Jjec Corporation Ltd do?
Jjec Corporation Ltd is registered under Construction of railways and underground railways (SIC 42120); Retail sale via mail order houses or via Internet (SIC 47910); Other letting and operating of own or leased real estate (SIC 68209); Other engineering activities (SIC 71129).
How old is Jjec Corporation Ltd?
Jjec Corporation Ltd was incorporated on 7 February 2023, 3 years ago.
What is the penalty if Jjec Corporation 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 Jjec Corporation 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.