- Companies
- Civil engineering
- Luton
- Osz Engineering Limited
Osz Engineering Limited
- Company number
- 11360386
- Incorporated
- 14 May 20188 years trading
- Registered office
- 33 Eaton Valley Road, Eaton Valley Road, Luton, LU2 0SN
- Nature of business
- Construction of other civil engineering projects n.e.c.
Osz Engineering Limited is a 8-year-old private limited company registered in Luton, company number 11360386, one of 164 civil engineering contractors in Luton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £9,400 (+27.4%) on the year before, to £44K.
- Net assets rose in 6 of 6 year-on-year comparisons on record.
- Current assets of £53K against £6,955 owed within a year: 7.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £44K | £53K | £6,955 | 1 | |
| 31 May 2024 | £34K | £48K | £6,665 | 1 | |
| 31 May 2023 | £31K | £46K | £3,603 | 2 | |
| 31 May 2022 | £31K | £52K | £4,803 | 2 | |
| 31 May 2021 | £25K | £53K | £7,317 | 2 | |
| 31 May 2020 | £19K | £21K | £2,343 | 2 | |
| 31 May 2019 | £8,986 | £8,985 | 2 |
Where Osz Engineering Limited is registered
The registered office is in Luton (LU2), in the Luton local authority area, East of England. Show LU2 0SN on a map.
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What happens if Osz Engineering 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11360386
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 May 2018 (8 years ago)
- Registered office
- 33 Eaton Valley Road, Eaton Valley Road, Luton, LU2 0SN
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 13 May 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 Luton
Other active civil engineering contractors registered in Luton.
- Ozzy Engineering Limited2019
- Pamma Construction Limited2020
- Pando Civil Engineering Solutions Limited2016
- Panoptic Surveyors and Engineers UK Ltd2024
- Par Build Ltd2016
- Paul Edwards Logistics PVT Ltd2013
- PD Engineering Consultancy Ltd2022
- Pipeline Specialists Supply Limited2025
All civil engineering contractors in Luton · All trades in Luton · Civil engineering across the UK
Frequently asked questions
When are Osz Engineering Limited's accounts due?
Osz Engineering Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Osz Engineering Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Osz Engineering Limited still trading?
Osz Engineering Limited 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 Osz Engineering Limited do?
Osz Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Osz Engineering Limited?
Osz Engineering Limited was incorporated on 14 May 2018, 8 years ago.
What is the penalty if Osz Engineering 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 Osz Engineering Limited 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.