- Companies
- Electricians
- London
- Ac Sparks Ltd
Ac Sparks Ltd
- Company number
- 16972327
- Incorporated
- 19 Jan 2026
- Registered office
- 42 Wentworth Gardens, London, N13 5SN
- Nature of business
- Electrical installation
Ac Sparks Ltd is a newly incorporated private limited company registered in London, company number 16972327, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 19 October 2027, and its first CT600 is due at HMRC on 18 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Ac Sparks Ltd is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 5SN on a map.
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- Danni Plumbing LtdPlumbers and heating engineers
What happens if Ac Sparks 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 19 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Oct 2027 to 19 Nov 2027 | £150 |
| 1 to 3 months late | 20 Nov 2027 to 19 Jan 2028 | £375 |
| 3 to 6 months late | 20 Jan 2028 to 19 Apr 2028 | £750 |
| More than 6 months late | From 20 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16972327
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 January 2026
- Registered office
- 42 Wentworth Gardens, London, N13 5SN
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Ac/DC Electrical London Limited2020
- Ac1 Electrical Services Limited2018
- Acdc 81 Ltd2020
- Ace M&E Ltd2015
- Aceco Services Ltd2021
- Acep Services Ltd2026
- Acesha Nova Ltd2025
- Acharge Electrical Services Ltd2021
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Ac Sparks Ltd's accounts due?
Ac Sparks Ltd's next accounts are due at Companies House by 19 October 2027 (in 371 days), covering the period to 31 January 2027.
When is Ac Sparks Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 January 2027, due by 18 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ac Sparks Ltd still trading?
Ac Sparks 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 Ac Sparks Ltd do?
Ac Sparks Ltd is registered under Electrical installation (SIC 43210).
How old is Ac Sparks Ltd?
Ac Sparks Ltd was incorporated on 19 January 2026, less than a year ago.
What is the penalty if Ac Sparks 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 Ac Sparks 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.