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- Hariharan Constructions Ltd
Company profile · Civil engineering
Hariharan Constructions Ltd
Hariharan Constructions Ltd is a 1-year-old private limited company registered in Southampton, company number 16618533, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 30 April 2027, and its first CT600 is due at HMRC on 30 July 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 Hariharan Constructions Ltd is registered
The registered office is in Southampton (SO40), in the New Forest local authority area, South East. Show SO40 2GL on a map.
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What happens if Hariharan Constructions 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16618533
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 July 2025 (1 year ago)
- Registered office
- 3 Blackwater Mews, Totton, Southampton, SO40 2GL
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 July (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.
- HB Groundworks Limited2016
- Horton Barns Limited2003
- Hus Corporation Ltd2016
- I&P Construction Ltd2025
- I.M.Currie Formwork Ltd2015
- Iga Signalling Limited2011
- Imperial Traffic Management Ltd2021
- J&G Gibbs Limited2006
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are Hariharan Constructions Ltd's accounts due?
Hariharan Constructions Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Hariharan Constructions Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 July 2026, due by 30 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Hariharan Constructions Ltd still trading?
Hariharan Constructions Ltd 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 Hariharan Constructions Ltd do?
Hariharan Constructions Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Hariharan Constructions Ltd?
Hariharan Constructions Ltd was incorporated on 31 July 2025, 1 year ago.
What is the penalty if Hariharan Constructions 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 Hariharan Constructions Ltd on Companies House for filed documents, officers and the full history.
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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.