- Companies
- Civil engineering
- Northampton
- Aac Construction Ltd
Aac Construction Ltd
- Company number
- 15691538
- Incorporated
- 29 Apr 20242 years trading
- Registered office
- 36 Billing Road, Northampton, NN1 5DQ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Aac Construction Ltd is a 2-year-old private limited company registered in Northampton, company number 15691538, one of 152 civil engineering contractors in Northampton. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Aac Construction Ltd is registered
The registered office is in Northampton (NN1), in the West Northamptonshire local authority area, East Midlands. Show NN1 5DQ on a map.
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What happens if Aac Construction 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 15691538
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2024 (2 years ago)
- Registered office
- 36 Billing Road, Northampton, NN1 5DQ
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 27 December 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 Northampton
Other active civil engineering contractors registered in Northampton.
- Abington Civils Limited2016
- Ac Turcanu Ltd2024
- Adroluc Ltd2018
- Adw Surveying Services Ltd2015
- Alpha Services (Northampton) Limited2015
- Amn Excavations Ltd2025
- Ashmac Construction Limited2002
- Atlas Civil Engineering Ltd2026
All civil engineering contractors in Northampton · All trades in Northampton · Civil engineering across the UK
Frequently asked questions
When are Aac Construction Ltd's accounts due?
Aac Construction Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Aac Construction Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Aac Construction Ltd still trading?
Aac Construction 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 Aac Construction Ltd do?
Aac Construction Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Aac Construction Ltd?
Aac Construction Ltd was incorporated on 29 April 2024, 2 years ago.
What is the penalty if Aac Construction 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 Aac Construction 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.