- Companies
- Civil engineering
- Rotherham
- KW Rail Limited
KW Rail Limited
- Company number
- 15120696
- Incorporated
- 6 Sep 20233 years trading
- Registered office
- 26 Barnsley Road, Wath-Upon-Dearne, Rotherham, S63 6QB
- Nature of business
- Construction of railways and underground railways
KW Rail Limited is a 3-year-old private limited company registered in Rotherham, company number 15120696, one of 83 civil engineering contractors in Rotherham. 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 £11K on the year before, to £11K.
- Current assets of £21K against £10K owed within a year: 2.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £11K | £21K | £10K | 1 | |
| 30 Sep 2023 | £100 |
Where KW Rail Limited is registered
The registered office is in Rotherham (S63), in the Rotherham local authority area, Yorkshire and The Humber. Show S63 6QB on a map.
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- Nuttall Heavy Engineering LtdMechanics and garages
- Ink Joinery LimitedJoiners and carpenters
- SWJL Services LtdElectricians
- Form. Landscaping LtdFinishing trades
- Goodwin Roofing Specialists LtdRoofers
- At Capital Developments LtdBuilders
Shared registered office
50 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if KW 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 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
- 15120696
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 September 2023 (3 years ago)
- Registered office
- 26 Barnsley Road, Wath-Upon-Dearne, Rotherham, S63 6QB
- 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 September 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 Rotherham
Other active civil engineering contractors registered in Rotherham.
- L & L Forecourts Civil Engineering Limited2021
- L Moore Ltd2023
- Lamb Building & Civil Engineering Limited2023
- LDH Contracts Ltd2022
- Lee Raistrick Ltd2019
- Lisden Groundworks Limited2023
- LJS Civil Engineering Ltd2023
- LSG Setting Out Limited2023
All civil engineering contractors in Rotherham · All trades in Rotherham · Civil engineering across the UK
Frequently asked questions
When are KW Rail Limited's accounts due?
KW Rail Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is KW Rail Limited'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 KW Rail Limited still trading?
KW Rail Limited is listed as active on the Companies House register (checked 13 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 KW Rail Limited do?
KW Rail Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is KW Rail Limited?
KW Rail Limited was incorporated on 6 September 2023, 3 years ago.
What is the penalty if KW 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 KW Rail Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.