- Companies
- Civil engineering
- Larkhall
- Oet Engineering Ltd
Oet Engineering Ltd
- Company number
- SC843029
- Incorporated
- 27 Mar 20251 year trading
- Registered office
- 17 Naismith Court, Stonehouse, Larkhall, ML9 3HE
- Nature of business
- Construction of other civil engineering projects n.e.c.
Oet Engineering Ltd is a 1-year-old private limited company registered in Larkhall, company number SC843029, one of 9 civil engineering contractors in Larkhall. Its next accounts are due at Companies House on 27 December 2026, and its first CT600 is due at HMRC on 26 March 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 Oet Engineering Ltd is registered
The registered office is in Larkhall (ML9), in the South Lanarkshire local authority area, Scotland. Show ML9 3HE on a map.
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What happens if Oet 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 27 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Dec 2026 to 27 Jan 2027 | £150 |
| 1 to 3 months late | 28 Jan 2027 to 27 Mar 2027 | £375 |
| 3 to 6 months late | 28 Mar 2027 to 27 Jun 2027 | £750 |
| More than 6 months late | From 28 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- SC843029
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 March 2025 (1 year ago)
- Registered office
- 17 Naismith Court, Stonehouse, Larkhall, ML9 3HE
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 26 March 2026
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 Larkhall
Other active civil engineering contractors registered in Larkhall.
- Pedigree Planning Ltd2024
- Shawsburn Plant Limited1982
- Taylor'd Services Limited2003
- Barry Kelly Welding & Marine Services Limited2016
- C P Railway Limited2025
- Complete Project Management Ltd2026
- J S Surfacing Limited2026
- Motion Scot Construction Services Ltd2019
All civil engineering contractors in Larkhall · All trades in Larkhall · Civil engineering across the UK
Frequently asked questions
When are Oet Engineering Ltd's accounts due?
Oet Engineering Ltd's next accounts are due at Companies House by 27 December 2026 (in 76 days), covering the period to 31 March 2026.
When is Oet 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 26 March 2026, due by 26 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Oet Engineering Ltd still trading?
Oet 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 Oet Engineering Ltd do?
Oet Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Oet Engineering Ltd?
Oet Engineering Ltd was incorporated on 27 March 2025, 1 year ago.
What is the penalty if Oet 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 Oet 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.