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- Mannabdellium Ltd
Company profile · Civil engineering
Mannabdellium Ltd
Mannabdellium Ltd is a 6-year-old private limited company registered in Slough, company number 12841304, one of 39 civil engineering contractors in Slough. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 August 2025, as filed at Companies House.
Mannabdellium 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 up £4,789 (+229.2%) on the year before, to £6,878.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £8,470 against £1,592 owed within a year: 5.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £6,878 | £8,470 | £1,592 | 1 | |
| 31 Aug 2024 | £2,089 | £2,089 | £0 | 1 | |
| 31 Aug 2023 | £4,636 | £5,760 | £1,124 | 1 | |
| 31 Aug 2022 | £1,843 | £2,486 | £643 | 1 | |
| 31 Aug 2021 | £1,103 | £5,409 | £4,306 | 1 |
Where Mannabdellium Ltd is registered
The registered office is in Slough (SL2), in the Slough local authority area, South East. Show SL2 2PD on a map.
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What happens if Mannabdellium 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12841304
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 August 2020 (6 years ago)
- Registered office
- 103 Littlebrook Avenue, Slough, SL2 2PD
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 10 September 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 Slough
Other active civil engineering contractors registered in Slough.
- Megan Services Ltd2008
- Meterit Utilities Ltd2018
- MP&M Builders Ltd2020
- Neshanth Construction Limited2020
- Nextlink Solutions Limited2026
- Nykps Ltd2019
- Powell Civils Limited2014
- Revolutcoutur Ltd2026
All civil engineering contractors in Slough · All trades in Slough · Civil engineering across the UK
Frequently asked questions
When are Mannabdellium Ltd's accounts due?
Mannabdellium Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Mannabdellium Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Mannabdellium Ltd still trading?
Mannabdellium 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 Mannabdellium Ltd do?
Mannabdellium Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Mannabdellium Ltd?
Mannabdellium Ltd was incorporated on 27 August 2020, 6 years ago.
What is the penalty if Mannabdellium 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 Mannabdellium 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.