- Companies
- Electricians
- London
- Carter Sparks Electrical Ltd
Carter Sparks Electrical Ltd
- Company number
- 12727780
- Incorporated
- 8 Jul 20206 years trading
- Registered office
- 142 Hollydale Road, London, SE15 2TQ
- Nature of business
- Electrical installation
Carter Sparks Electrical Ltd is a 6-year-old private limited company registered in London, company number 12727780, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
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 unchanged on the year before, at £0.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- 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 Jul 2025 | £0 | £0 | £0 | 1 | |
| 31 Jul 2024 | £0 | £0 | £0 | 1 | |
| 31 Jul 2023 | £1,541 | £1 | £1,542 | 1 | |
| 31 Jul 2022 | £311 | £1 | £312 | 1 | |
| 31 Jul 2021 | £12 | £374 | £362 | 1 |
Where Carter Sparks Electrical Ltd is registered
The registered office is in London (SE15), in the Southwark local authority area, London. Show SE15 2TQ on a map.
Other trade companies in SE15
- Solmay Services LtdCleaning companies
- Max Lee Robinsons Property Services LtdPlumbers and heating engineers
- Aaluxe Cleaning LimitedCleaning companies
- Bronzewood Environmental Services LimitedFinishing trades
- Bashfield Facilities LtdCleaning companies
- Parcel Works Development LimitedProperty developers
- BSF Building Services LtdElectricians
- Pro Decor London LtdBuilders
What happens if Carter Sparks Electrical 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12727780
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 July 2020 (6 years ago)
- Registered office
- 142 Hollydale Road, London, SE15 2TQ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 5 July 2026
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.
- Cartercomm Intercoms Ltd2024
- Cas Capital Ventures Ltd2026
- Cas Network Ltd2022
- Casafix Ltd2019
- Caspian Electrical Ltd2018
- Casstec Ltd2025
- Castor Site Services Ltd2017
- Cat Electrics Ltd2025
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Carter Sparks Electrical Ltd's accounts due?
Carter Sparks Electrical Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Carter Sparks Electrical Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Carter Sparks Electrical Ltd still trading?
Carter Sparks Electrical 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 Carter Sparks Electrical Ltd do?
Carter Sparks Electrical Ltd is registered under Electrical installation (SIC 43210).
How old is Carter Sparks Electrical Ltd?
Carter Sparks Electrical Ltd was incorporated on 8 July 2020, 6 years ago.
What is the penalty if Carter Sparks Electrical 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 Carter Sparks Electrical 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.