- Companies
- Civil engineering
- Southampton
- CJC Rails Ltd
CJC Rails Ltd
- Company number
- 13156203
- Incorporated
- 25 Jan 20215 years trading
- Registered office
- 12 Copsewood Road, Southampton, SO18 1QU
- Nature of business
- Construction of railways and underground railways
CJC Rails Ltd is a 5-year-old private limited company registered in Southampton, company number 13156203, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £2,777 (+935%) on the year before, to £3,074.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £8,575 against £5,525 owed within a year: 1.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £3,074 | £8,575 | £5,525 | 0 | |
| 31 Jan 2024 | £297 | £6,868 | £7,370 | 1 | |
| 31 Jan 2023 | £6 | £12K | £13K | 1 | |
| 31 Jan 2022 | £7 | £29K | £30K | 1 |
Where CJC Rails Ltd is registered
The registered office is in Southampton (SO18), in the Southampton local authority area, South East. Show SO18 1QU on a map.
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Also registered at this address
1 other company uses the same registered office as CJC Rails Ltd.
- NBC Installations LtdCivil engineering
What happens if CJC Rails 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13156203
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 January 2021 (5 years ago)
- Registered office
- 12 Copsewood Road, Southampton, SO18 1QU
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 24 January 2026
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 Southampton
Other active civil engineering contractors registered in Southampton.
- Currie and Partners Ltd2024
- D Beament Ltd2025
- D-Max Construction Ltd2016
- Da Groundworks & Construction Ltd2021
- Da Silva Construction Ltd2021
- DMS Landholdings Limited2017
- Duty Civil Engineering Ltd2026
- DV Smith Limited2026
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are CJC Rails Ltd's accounts due?
CJC Rails Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is CJC Rails Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is CJC Rails Ltd still trading?
CJC Rails 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 CJC Rails Ltd do?
CJC Rails Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is CJC Rails Ltd?
CJC Rails Ltd was incorporated on 25 January 2021, 5 years ago.
What is the penalty if CJC Rails 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 CJC Rails 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.