- Companies
- Civil engineering
- Lincoln
- A J Engineering UK Ltd
A J Engineering UK Ltd
- Company number
- 05083839
- Incorporated
- 25 Mar 200422 years trading
- Registered office
- Century House Lincoln Road, Aisthorpe, Lincoln, Lincolnshire, LN1 2SG
- Nature of business
- Construction of other civil engineering projects n.e.c.
A J Engineering UK Ltd is a 22-year-old private limited company registered in Lincoln, company number 05083839, one of 108 civil engineering contractors in Lincoln. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
A J Engineering UK Ltd over the years
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 down £23K on the year before, to -£23K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £47K against £87K owed within a year: 0.5 times cover.
- 7 employees on average, up from 6 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£23K | £47K | £87K | 7 | |
| 31 Mar 2024 | £101 | £87K | £98K | 6 | |
| 31 Mar 2023 | £11K | £103K | £98K | 6 | |
| 31 Mar 2022 | £7,549 | £107K | £73K | 7 | |
| 31 Mar 2021 | £5,084 | £126K | £84K | 7 | |
| 31 Mar 2020 | £5,982 | £98K | £107K | 7 | |
| 31 Mar 2019 | £5,840 | £94K | £102K | ||
| 31 Mar 2018 | £2,368 | £0 | £86K | £95K | 7 |
| 31 Mar 2017 | -£13K | £55K | £87K | ||
| 31 Mar 2016 | £91K | £88K |
Where A J Engineering UK Ltd is registered
The registered office is in Lincoln (LN1), in the West Lindsey local authority area, East Midlands. Show LN1 2SG on a map.
Other trade companies in LN1
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- Ag Home Developments LtdProperty developers
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- Wright Aviate LtdMachinery repair and installation
- Riverside Tyres LimitedMechanics and garages
- Queen Bee Pest Management LtdCleaning companies
- Rain & Root Landscaping & Construction LtdLandscapers and gardeners
- Moulds Fencing LimitedInstallers
What happens if A J Engineering UK 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 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
- 05083839
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 March 2004 (22 years ago)
- Registered office
- Century House Lincoln Road, Aisthorpe, Lincoln, Lincolnshire, LN1 2SG
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 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 Lincoln
Other active civil engineering contractors registered in Lincoln.
- A. Chamberlain Combination Contracting Ltd.2011
- Abf Surfacing Services Ltd2025
- Ag Construction (UK) Ltd2003
- Agr Surface Preparation Ltd2022
- Alpha Paving and Groundworks Ltd2020
- Amr Paving & Landscaping Ltd2024
- Ashley Stockbridge Brickwork Ltd2019
- Barkers Civil Engineering Ltd2026
All civil engineering contractors in Lincoln · All trades in Lincoln · Civil engineering across the UK
Frequently asked questions
When are A J Engineering UK Ltd's accounts due?
A J Engineering UK Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is A J Engineering UK Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is A J Engineering UK Ltd still trading?
A J Engineering UK 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 A J Engineering UK Ltd do?
A J Engineering UK Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is A J Engineering UK Ltd?
A J Engineering UK Ltd was incorporated on 25 March 2004, 22 years ago.
What is the penalty if A J Engineering UK 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 A J Engineering UK 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.