- Companies
- Civil engineering
- London
- BKT Rail Limited
BKT Rail Limited
- Company number
- 13438149
- Incorporated
- 4 Jun 20215 years trading
- Registered office
- 98 Teviot Street, London, E14 6QR
- Nature of business
- Construction of railways and underground railways
BKT Rail Limited is a 5-year-old private limited company registered in London, company number 13438149, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £12K (+62.5%) on the year before, to -£6,989.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- 2 employees on average, up from 0 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£6,989 | £0 | £6,989 | 2 | |
| 30 Jun 2024 | -£19K | £0 | £19K | 0 | |
| 30 Jun 2023 | -£2,089 | £0 | £2,089 | 1 | |
| 30 Jun 2022 | -£11K | £0 | £11K | 1 |
Where BKT Rail Limited is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 6QR on a map.
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What happens if BKT 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 13438149
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2021 (5 years ago)
- Registered office
- 98 Teviot Street, London, E14 6QR
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 30 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 London
Other active civil engineering contractors registered in London.
- Black Cone TM Ltd2026
- Black Temple Limited2018
- Blackstar Thermal Ltd2025
- Bldtech- Consult Ltd2019
- Blue Boson Tech Ltd2018
- Blue Property Developments Ltd2019
- Bluemethane Limited2021
- Blutek Engineering Ltd2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are BKT Rail Limited's accounts due?
BKT Rail Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is BKT Rail Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is BKT Rail Limited still trading?
BKT 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 BKT Rail Limited do?
BKT Rail Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is BKT Rail Limited?
BKT Rail Limited was incorporated on 4 June 2021, 5 years ago.
What is the penalty if BKT 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 BKT 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.