- Companies
- Electricians
- London
- Core Secur Ltd
Company profile · Electricians
Core Secur Ltd
Core Secur Ltd is a newly incorporated private limited company registered in London, company number 16870566, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 24 August 2027, and its first CT600 is due at HMRC on 23 November 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.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Core Secur LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Core Secur Ltd is registered
The registered office is in London (N16), in the Hackney local authority area, London. Show N16 6QA on a map.
Other trade companies in N16
- Jrdesign&Renovations LtdCleaning companies
- RSV2Cleaning LtdCleaning companies
- Tura Property Solutions LtdBuilders
- Stokey Group LtdPlumbers and heating engineers
- Core Maintenance London LtdFinishing trades
- JSW Bathrooms LimitedElectricians
- Y.E.D. Building and Construction Services LtdPlumbers and heating engineers
- Olga Services LtdBuilders
What happens if Core Secur 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 24 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Aug 2027 to 24 Sep 2027 | £150 |
| 1 to 3 months late | 25 Sep 2027 to 24 Nov 2027 | £375 |
| 3 to 6 months late | 25 Nov 2027 to 24 Feb 2028 | £750 |
| More than 6 months late | From 25 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16870566
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 November 2025
- Registered office
- 14 Firsby Road, London, N16 6QA
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 November (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.
- Corecroft Limited2001
- Coring & Grant Electrical Projects Ltd2021
- Correct Electrical Ltd2019
- Corrigan's (Electrical) Ltd2026
- Corva Ltd2025
- Cosmar Electrical Contractors Limited2003
- Cosmic Facilty Services Ltd2023
- Cosmo Av & Security Ltd.2025
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Core Secur Ltd's accounts due?
Core Secur Ltd's next accounts are due at Companies House by 24 August 2027 (in 316 days), covering the period to 30 November 2026.
When is Core Secur 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 23 November 2026, due by 23 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Core Secur Ltd still trading?
Core Secur 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 Core Secur Ltd do?
Core Secur Ltd is registered under Electrical installation (SIC 43210).
How old is Core Secur Ltd?
Core Secur Ltd was incorporated on 24 November 2025, less than a year ago.
What is the penalty if Core Secur 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 Core Secur Ltd on Companies House for filed documents, officers and the full history.
Is something here wrong, or would you like this page removed? Request a correction or removal.
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.