- Companies
- Civil engineering
- Merthyr Tydfil
- G&B Murphy Rail Limited
G&B Murphy Rail Limited
- Company number
- 14052585
- Incorporated
- 19 Apr 20224 years trading
- Registered office
- 45 Penybryn, Merthyr Tydfil, CF47 9YY
- Nature of business
- Construction of railways and underground railways
G&B Murphy Rail Limited is a 4-year-old private limited company registered in Merthyr Tydfil, company number 14052585, one of 36 civil engineering contractors in Merthyr Tydfil. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 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 down £8,623 (-61%) on the year before, to £5,507.
- Current assets of £16K against £10K owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Mar 2025 | £5,507 | £16K | £10K | 1 | |
| 31 Mar 2024 | £14K | £24K | £10K | 1 | |
| 31 Mar 2023 | £8,474 | £15K | £6,664 | 1 |
Where G&B Murphy Rail Limited is registered
The registered office is in Merthyr Tydfil (CF47), in the Merthyr Tydfil local authority area, Wales. Show CF47 9YY on a map.
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What happens if G&B Murphy Rail Limited 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Mar 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
- 14052585
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 April 2022 (4 years ago)
- Registered office
- 45 Penybryn, Merthyr Tydfil, CF47 9YY
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 March 2025
- Last confirmation statement
- 18 April 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 Merthyr Tydfil
Other active civil engineering contractors registered in Merthyr Tydfil.
- GR Welding Ltd2022
- Graft Contracting Ltd2021
- Green Light Rail & Construction Ltd2023
- HSS Brickwork & Paving Limited2018
- J & T Telecoms Ltd2024
- J Hope Ltd2021
- JC Davies Rail Ltd2015
- JLC Groundwork Contractors Ltd2021
All civil engineering contractors in Merthyr Tydfil · All trades in Merthyr Tydfil · Civil engineering across the UK
Frequently asked questions
When are G&B Murphy Rail Limited's accounts due?
G&B Murphy Rail Limited's next accounts are due at Companies House by 30 December 2026 (in 78 days), covering the period to 30 March 2026.
When is G&B Murphy Rail Limited's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is G&B Murphy Rail Limited still trading?
G&B Murphy Rail Limited 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 G&B Murphy Rail Limited do?
G&B Murphy Rail Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is G&B Murphy Rail Limited?
G&B Murphy Rail Limited was incorporated on 19 April 2022, 4 years ago.
What is the penalty if G&B Murphy Rail Limited 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 G&B Murphy Rail Limited 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.