- Companies
- Civil engineering
- Southampton
- Aimac Construction Limited
Aimac Construction Limited
- Company number
- 16683061
- Incorporated
- 30 Aug 20251 year trading
- Registered office
- 6 Oakley Close, Holbury, Southampton, SO45 2PJ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Aimac Construction Limited is a 1-year-old private limited company registered in Southampton, company number 16683061, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 30 May 2027, and its first CT600 is due at HMRC on 29 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 Aimac Construction Limited is registered
The registered office is in Southampton (SO45), in the New Forest local authority area, South East. Show SO45 2PJ on a map.
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What happens if Aimac Construction 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 30 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 May 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 30 Aug 2027 | £375 |
| 3 to 6 months late | 31 Aug 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
- 16683061
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 August 2025 (1 year ago)
- Registered office
- 6 Oakley Close, Holbury, Southampton, SO45 2PJ
- 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 in Southampton
Other active civil engineering contractors registered in Southampton.
- Altoria TM Services Ltd2026
- Aquila Project Services Ltd2024
- Aspect Projects Southern Limited2015
- B Harris Surfacing Ltd2021
- Balkars Civils and Groundworks Ltd2026
- Bbsig Ltd2019
- BGM Civils Limited2026
- Bogdan Groundworks Ltd2026
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are Aimac Construction Limited's accounts due?
Aimac Construction Limited's next accounts are due at Companies House by 30 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Aimac Construction 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 29 August 2026, due by 29 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 Aimac Construction Limited still trading?
Aimac Construction 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 Aimac Construction Limited do?
Aimac Construction Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Aimac Construction Limited?
Aimac Construction Limited was incorporated on 30 August 2025, 1 year ago.
What is the penalty if Aimac Construction 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 Aimac Construction 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.