- Companies
- Civil engineering
- Brighton
- Ah Rail and Civils Limited
Ah Rail and Civils Limited
- Company number
- 17476918
- Incorporated
- 23 Sep 2026
- Registered office
- 5 Horizon Close, Portslade, Brighton, BN41 1UA
- Nature of business
- Construction of railways and underground railways
Ah Rail and Civils Limited is a newly incorporated private limited company registered in Brighton, company number 17476918, one of 27 civil engineering contractors in Brighton. Its next accounts are due at Companies House on 23 June 2028, and its first CT600 is due at HMRC on 22 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Ah Rail and Civils Limited is registered
The registered office is in Brighton (BN41), in the Brighton and Hove local authority area, South East. Show BN41 1UA on a map.
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What happens if Ah Rail and Civils 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 23 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Jun 2028 to 23 Jul 2028 | £150 |
| 1 to 3 months late | 24 Jul 2028 to 23 Sep 2028 | £375 |
| 3 to 6 months late | 24 Sep 2028 to 23 Dec 2028 | £750 |
| More than 6 months late | From 24 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17476918
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2026
- Registered office
- 5 Horizon Close, Portslade, Brighton, BN41 1UA
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 Brighton
Other active civil engineering contractors registered in Brighton.
- Big Banking Limited2016
- Carrington MGMT Limited2015
- Deanway Properties Limited1980
- Energyhubdevelopments Limited2020
- G.Rhodes Site Services Limited2010
- GD HV Services Limited2025
- GDH Utilities Ltd2026
- KKD Contractors Ltd2024
All civil engineering contractors in Brighton · All trades in Brighton · Civil engineering across the UK
Frequently asked questions
When are Ah Rail and Civils Limited's accounts due?
Ah Rail and Civils Limited's next accounts are due at Companies House by 23 June 2028 (in 619 days), covering the period to 30 September 2027.
When is Ah Rail and Civils Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 22 September 2027, due by 22 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ah Rail and Civils Limited still trading?
Ah Rail and Civils 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 Ah Rail and Civils Limited do?
Ah Rail and Civils Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is Ah Rail and Civils Limited?
Ah Rail and Civils Limited was incorporated on 23 September 2026, less than a year ago.
What is the penalty if Ah Rail and Civils 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 Ah Rail and Civils 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.