- Companies
- Civil engineering
- Tonypandy
- CJS Signalling Ltd
CJS Signalling Ltd
- Company number
- 14516457
- Incorporated
- 30 Nov 20223 years trading
- Registered office
- 110 Thomas Street, Tonypandy, Rhondda Cynon Taff, CF40 2AE
- Nature of business
- Construction of railways and underground railways; Other specialised construction activities n.e.c.
CJS Signalling Ltd is a 3-year-old private limited company registered in Tonypandy, company number 14516457, one of 15 civil engineering contractors in Tonypandy. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for CJS Signalling LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £1,653 (-6.7%) on the year before, to £23K.
- Current assets of £40K against £18K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £23K | £40K | £18K | 0 | |
| 30 Nov 2024 | £25K | £61K | £43K | 1 | |
| 30 Nov 2023 | £5,266 | £36K | £38K | 1 |
Who runs and owns CJS Signalling Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** O*** | Director | Nov 2022 |
Person with significant control
Where CJS Signalling Ltd is registered
The registered office is in Tonypandy (CF40), in the Rhondda Cynon Taf local authority area, Wales. Show CF40 2AE on a map.
Other trade companies in CF40
- C S National Builders LimitedProperty developers
- Ars Aedifex LtdBuilders
- Ca54 Rail LtdCivil engineering
- Colcombe Estates LtdProperty developers
- PJF Roofing & Son LtdRoofers
- SC South West Maintenance LimitedFacilities management
- L J Civils LimitedBuilders
- R&L Hygiene LtdCleaning companies
What happens if CJS Signalling 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 14516457
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 November 2022 (3 years ago)
- Registered office
- 110 Thomas Street, Tonypandy, Rhondda Cynon Taff, CF40 2AE
- Nature of business
- Construction of railways and underground railways (SIC 42120)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 12 November 2025
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 Tonypandy
Other active civil engineering contractors registered in Tonypandy.
- David Hancock Safety Ltd2016
- Dwe Ltd2025
- KT Surfacing Ltd2021
- Lilel Rail Planning Services Ltd2016
- Rail & Civils Services Limited2020
- RDL Civils Ltd2024
- Reinforce Utilities Limited2017
- RMS Monitoring Ltd2023
All civil engineering contractors in Tonypandy · All trades in Tonypandy · Civil engineering across the UK
Frequently asked questions
When are CJS Signalling Ltd's accounts due?
CJS Signalling Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is CJS Signalling Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is CJS Signalling Ltd still trading?
CJS Signalling 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 CJS Signalling Ltd do?
CJS Signalling Ltd is registered under Construction of railways and underground railways (SIC 42120); Other specialised construction activities n.e.c. (SIC 43999).
How old is CJS Signalling Ltd?
CJS Signalling Ltd was incorporated on 30 November 2022, 3 years ago.
Who runs CJS Signalling Ltd?
CJS Signalling Ltd has 1 active director, the longest-serving appointed in Nov 2022. Their names and service addresses are on the Companies House register.
Who owns CJS Signalling Ltd?
One person or company has significant control of CJS Signalling Ltd: an individual (owns 75% or more of the shares).
What is the penalty if CJS Signalling 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 CJS Signalling 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.