- Companies
- Civil engineering
- CJM Thomson Limited
CJM Thomson Limited
- Company number
- 16651285
- Incorporated
- 14 Aug 20251 year trading
- Registered office
- 2D-2E Fitz Gilbert Court, Castledown Business Park, Ludgershall, Wiltshire, SP11 9FA
- Nature of business
- Construction of other civil engineering projects n.e.c.
CJM Thomson Limited is a 1-year-old private limited company registered in Ludgershall, company number 16651285, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 14 May 2027, and its first CT600 is due at HMRC on 13 August 2027.
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 CJM Thomson Limited is registered
The registered office is in Ludgershall (SP11), in the Wiltshire local authority area, South West. Show SP11 9FA on a map.
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Also registered at this address
11 other companies use the same registered office as CJM Thomson Limited.
- Acdc Electrical Services LimitedElectricians
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- Nic's Services LimitedElectricians
- Thermo-Flow Energy LtdPlumbers and heating engineers
- Tidworth Electrical LimitedElectricians
What happens if CJM Thomson 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 14 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 May 2027 to 14 Jun 2027 | £150 |
| 1 to 3 months late | 15 Jun 2027 to 14 Aug 2027 | £375 |
| 3 to 6 months late | 15 Aug 2027 to 14 Nov 2027 | £750 |
| More than 6 months late | From 15 Nov 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
- 16651285
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2025 (1 year ago)
- Registered office
- 2D-2E Fitz Gilbert Court, Castledown Business Park, Ludgershall, Wiltshire, SP11 9FA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (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
Other active civil engineering contractors.
Frequently asked questions
When are CJM Thomson Limited's accounts due?
CJM Thomson Limited's next accounts are due at Companies House by 14 May 2027 (in 214 days), covering the period to 31 August 2026.
When is CJM Thomson 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 13 August 2026, due by 13 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CJM Thomson Limited still trading?
CJM Thomson Limited is listed as active on the Companies House register (checked 12 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 CJM Thomson Limited do?
CJM Thomson Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is CJM Thomson Limited?
CJM Thomson Limited was incorporated on 14 August 2025, 1 year ago.
What is the penalty if CJM Thomson 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 CJM Thomson Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.