- Companies
- Civil engineering
- Birmingham
- Isamrailengineering Ltd
Isamrailengineering Ltd
- Company number
- 14708662
- Incorporated
- 6 Mar 20233 years trading
- Registered office
- 51 Old Bromford Lane, Birmingham, B8 2RJ
- Nature of business
- Construction of railways and underground railways
Isamrailengineering Ltd is a 3-year-old private limited company registered in Birmingham, company number 14708662, one of 278 civil engineering contractors in Birmingham. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 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 up £2,029 on the year before, to £2,097.
- Current assets of £1,192 against £2,689 owed within a year: 0.4 times cover.
- 1 employee on average, up from 0 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £2,097 | £1,192 | £2,689 | 1 | |
| 31 Mar 2024 | £68 | 0 |
Where Isamrailengineering Ltd is registered
The registered office is in Birmingham (B8), in the Birmingham local authority area, West Midlands. Show B8 2RJ on a map.
Other trade companies in B8
- Sterling Nexus LtdMotor traders
- BD Automotive LimitedMechanics and garages
- MW (Midland) UK LimitedMotor traders
- Uhz Holdings LtdMechanics and garages
- Redline Performance LtdMechanics and garages
- Revora Developments LtdFinishing trades
- Asif the Valeter LtdMechanics and garages
- Imperial Auto Care LtdMechanics and garages
What happens if Isamrailengineering 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 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 | 1 Apr 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 | 31 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
- 14708662
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2023 (3 years ago)
- Registered office
- 51 Old Bromford Lane, Birmingham, B8 2RJ
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 5 March 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 Birmingham
Other active civil engineering contractors registered in Birmingham.
- Ish TM Ltd2022
- Iybs Developments Limited2021
- J & A Site Services Ltd2018
- J7 Builders Ltd2017
- Jama Telecom Ltd2025
- Jed TM Services Ltd2018
- JF Civils Ltd2026
- JG Fencing and Landscaping Ltd2023
All civil engineering contractors in Birmingham · All trades in Birmingham · Civil engineering across the UK
Frequently asked questions
When are Isamrailengineering Ltd's accounts due?
Isamrailengineering Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Isamrailengineering Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Isamrailengineering Ltd still trading?
Isamrailengineering 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 Isamrailengineering Ltd do?
Isamrailengineering Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Isamrailengineering Ltd?
Isamrailengineering Ltd was incorporated on 6 March 2023, 3 years ago.
What is the penalty if Isamrailengineering 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 Isamrailengineering 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.