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- Osn Engineering Ltd
Company profile · Civil engineering
Osn Engineering Ltd
Osn Engineering Ltd is a newly incorporated private limited company registered in Wirral, company number 17318912, one of 39 civil engineering contractors in Wirral. Its next accounts are due at Companies House on 3 April 2028, and its first CT600 is due at HMRC on 2 July 2028.
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 Osn Engineering Ltd is registered
The registered office is in Wirral (CH63), in the Wirral local authority area, North West. Show CH63 8LT on a map.
Other trade companies in CH63
- Osborne Electrical Solutions LtdElectricians
- Commercial Coatings NW LtdFloor and wall tilers
- CCR Carpet Fitters LimitedFinishing trades
- Monval Residential LtdProperty developers
- Alan Ball NW LimitedFinishing trades
- RSR Wirral LtdMachinery repair and installation
- Leneghan Property Developments LtdProperty developers
- Specialist Light & Power LtdElectricians
What happens if Osn Engineering 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 3 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Apr 2028 to 3 May 2028 | £150 |
| 1 to 3 months late | 4 May 2028 to 3 Jul 2028 | £375 |
| 3 to 6 months late | 4 Jul 2028 to 3 Oct 2028 | £750 |
| More than 6 months late | From 4 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2029 | 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
- 17318912
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2026
- Registered office
- 70 Malpas Drive, Wirral, CH63 8LT
- 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 Wirral
Other active civil engineering contractors registered in Wirral.
- Peninsula Power Solutions Limited2025
- Sage Engineering GSJJ Limited2026
- SRS Projects Ltd2008
- TSS Rowlands Groundworks Ltd2025
- Williams Civils Ltd2011
- Wirral Specialist Projects Limited2014
- A J Welding Ltd2026
- Adc Civils Ltd2024
All civil engineering contractors in Wirral · All trades in Wirral · Civil engineering across the UK
Frequently asked questions
When are Osn Engineering Ltd's accounts due?
Osn Engineering Ltd's next accounts are due at Companies House by 3 April 2028 (in 539 days), covering the period to 31 July 2027.
When is Osn Engineering 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 2 July 2027, due by 2 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Osn Engineering Ltd still trading?
Osn Engineering 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 Osn Engineering Ltd do?
Osn Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Osn Engineering Ltd?
Osn Engineering Ltd was incorporated on 3 July 2026, less than a year ago.
What is the penalty if Osn Engineering 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 Osn Engineering 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.