- Companies
- Electricians
- London
- Autospark Engineering Ltd
Autospark Engineering Ltd
- Company number
- 16032633
- Incorporated
- 21 Oct 20241 year trading
- Registered office
- Flat 4 Clyde House, 2 Waverley Crescent, London, SE18 7QS
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Business and domestic software development; Engineering design activities for industrial process and production
Autospark Engineering Ltd is a 1-year-old private limited company registered in London, company number 16032633, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 October 2025, as filed at Companies House.
Where Autospark Engineering Ltd is registered
The registered office is in London (SE18), in the Greenwich local authority area, London. Show SE18 7QS on a map.
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- Cleo Clean LtdCleaning companies
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What happens if Autospark 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16032633
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 October 2024 (1 year ago)
- Registered office
- Flat 4 Clyde House, 2 Waverley Crescent, London, SE18 7QS
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Business and domestic software development (SIC 62012)
Engineering design activities for industrial process and production (SIC 71121) - Year end
- 31 October (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 7 November 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 in London
Other active electrical contractors registered in London.
- Aux88 Service Ltd2024
- Av & LED Ltd2025
- Av Power Ltd2025
- Av11 Ltd2023
- Ava Electrical Contractors Ltd2019
- Avant Garde Electrical & Building Services Ltd2011
- Avdi Electrical Services Limited2026
- Ave-Group Ltd.2015
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Autospark Engineering Ltd's accounts due?
Autospark Engineering Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Autospark Engineering Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Autospark Engineering Ltd still trading?
Autospark 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 Autospark Engineering Ltd do?
Autospark Engineering Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Business and domestic software development (SIC 62012); Engineering design activities for industrial process and production (SIC 71121).
How old is Autospark Engineering Ltd?
Autospark Engineering Ltd was incorporated on 21 October 2024, 1 year ago.
What is the penalty if Autospark 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 Autospark 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.