- Companies
- Civil engineering
- Abbots Langley
- JSJ Civils Ltd
JSJ Civils Ltd
- Company number
- 15875702
- Incorporated
- 3 Aug 20242 years trading
- Registered office
- 71 Breakspeare Road, Abbots Langley, WD5 0ER
- Nature of business
- Construction of other civil engineering projects n.e.c.
JSJ Civils Ltd is a 2-year-old private limited company registered in Abbots Langley, company number 15875702, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Where JSJ Civils Ltd is registered
The registered office is in Abbots Langley (WD5), in the Three Rivers local authority area, East of England. Show WD5 0ER on a map.
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What happens if JSJ Civils 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15875702
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 August 2024 (2 years ago)
- Registered office
- 71 Breakspeare Road, Abbots Langley, WD5 0ER
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 2 August 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 Abbots Langley
Other active civil engineering contractors registered in Abbots Langley.
- Kingdom Earthworks & Remediation Ltd2025
- Ac Construction (London) Ltd2017
- D.Ebden Engineering Limited1999
All civil engineering contractors in Abbots Langley · All trades in Abbots Langley · Civil engineering across the UK
Frequently asked questions
When are JSJ Civils Ltd's accounts due?
JSJ Civils Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is JSJ Civils Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is JSJ Civils Ltd still trading?
JSJ Civils 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 JSJ Civils Ltd do?
JSJ Civils Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is JSJ Civils Ltd?
JSJ Civils Ltd was incorporated on 3 August 2024, 2 years ago.
What is the penalty if JSJ Civils 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 JSJ Civils 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.