- Companies
- Electricians
- Lowestoft
- Karl Sparky Ltd
Karl Sparky Ltd
- Company number
- 16341590
- Incorporated
- 25 Mar 20251 year trading
- Registered office
- Number Sixty One, Alexandra Road, Lowestoft, Suffolk, NR32 1PL
- Nature of business
- Electrical installation
Karl Sparky Ltd is a 1-year-old private limited company registered in Lowestoft, company number 16341590, one of 63 electrical contractors in Lowestoft. Its next accounts are due at Companies House on 25 December 2026, and its first CT600 is due at HMRC on 24 March 2027.
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 Karl Sparky Ltd is registered
The registered office is in Lowestoft (NR32), in the East Suffolk local authority area, East of England. Show NR32 1PL on a map.
Other trade companies in NR32
- Ezra Access Solutions LtdScaffolders
- SLC Plumbing LtdPlumbers and heating engineers
- Yare Developments LimitedProperty developers
- RLB Cleaning and Maintenance LtdFacilities management
- Tech Sparrow LtdMachinery repair and installation
- A J Knights LtdProperty developers
- Cool Beans Air LtdPlumbers and heating engineers
- HR Electrical (East Anglia) LtdElectricians
Shared registered office
57 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Karl Sparky 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 25 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Dec 2026 to 25 Jan 2027 | £150 |
| 1 to 3 months late | 26 Jan 2027 to 25 Mar 2027 | £375 |
| 3 to 6 months late | 26 Mar 2027 to 25 Jun 2027 | £750 |
| More than 6 months late | From 26 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16341590
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 March 2025 (1 year ago)
- Registered office
- Number Sixty One, Alexandra Road, Lowestoft, Suffolk, NR32 1PL
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 March 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 Lowestoft
Other active electrical contractors registered in Lowestoft.
- KM Electronics Limited2003
- L.H Services (Ea) Ltd2024
- Luna Electrical Limited2025
- M.J. & N.M. Partridge Electrical Limited2006
- Magee Solutions Limited2021
- Moelex Limited2015
- Neotech Electrical Services Ltd2021
- Norfolk & Suffolk Security Ltd2024
All electrical contractors in Lowestoft · All trades in Lowestoft · Electricians across the UK
Frequently asked questions
When are Karl Sparky Ltd's accounts due?
Karl Sparky Ltd's next accounts are due at Companies House by 25 December 2026 (in 73 days), covering the period to 31 March 2026.
When is Karl Sparky 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 24 March 2026, due by 24 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Karl Sparky Ltd still trading?
Karl Sparky 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 Karl Sparky Ltd do?
Karl Sparky Ltd is registered under Electrical installation (SIC 43210).
How old is Karl Sparky Ltd?
Karl Sparky Ltd was incorporated on 25 March 2025, 1 year ago.
What is the penalty if Karl Sparky 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 Karl Sparky 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.