- Companies
- Electricians
- Alliant Energy Ltd
Alliant Energy Ltd
- Company number
- 15982592
- Incorporated
- 27 Sep 20242 years trading
- Registered office
- Unit 214 Northlight Industries Northlight House, Pendle Road, Brierfield,nelson, BB9 5FL
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Plastering; Joinery installation
Alliant Energy Ltd is a 2-year-old private limited company registered in Brierfield,nelson, company number 15982592, one of the UK's electrical contractors. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 30 September 2025, as filed at Companies House.
Where Alliant Energy Ltd is registered
The registered office is in Brierfield,nelson (BB9), in the Pendle local authority area, North West. Show BB9 5FL on a map.
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- Barden Motor Factors LtdMotor traders
- Stoian LtdBuilders
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What happens if Alliant Energy 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 15982592
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 September 2024 (2 years ago)
- Registered office
- Unit 214 Northlight Industries Northlight House, Pendle Road, Brierfield,nelson, BB9 5FL
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Plastering (SIC 43310)
Joinery installation (SIC 43320) - Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 26 September 2025
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies
Other active electrical contractors.
Frequently asked questions
When are Alliant Energy Ltd's accounts due?
Alliant Energy Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Alliant Energy Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Alliant Energy Ltd still trading?
Alliant Energy 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 Alliant Energy Ltd do?
Alliant Energy Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Plastering (SIC 43310); Joinery installation (SIC 43320).
How old is Alliant Energy Ltd?
Alliant Energy Ltd was incorporated on 27 September 2024, 2 years ago.
What is the penalty if Alliant Energy 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 Alliant Energy 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.