- Companies
- Electricians
- London
- MCB Wiring Limited
MCB Wiring Limited
- Company number
- 16977034
- Incorporated
- 21 Jan 2026
- Registered office
- 89 Colin Gardens, London, NW9 6EP
- Nature of business
- Electrical installation
MCB Wiring Limited is a newly incorporated private limited company registered in London, company number 16977034, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 21 October 2027, and its first CT600 is due at HMRC on 20 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 MCB Wiring Limited is registered
The registered office is in London (NW9), in the Barnet local authority area, London. Show NW9 6EP on a map.
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Also registered at this address
1 other company uses the same registered office as MCB Wiring Limited.
- GWCT LimitedFinishing trades
What happens if MCB Wiring Limited 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 21 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Oct 2027 to 21 Nov 2027 | £150 |
| 1 to 3 months late | 22 Nov 2027 to 21 Jan 2028 | £375 |
| 3 to 6 months late | 22 Jan 2028 to 21 Apr 2028 | £750 |
| More than 6 months late | From 22 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
- 16977034
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 January 2026
- Registered office
- 89 Colin Gardens, London, NW9 6EP
- 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.
- MCC Creative Solutions Ltd2025
- MCG Electrical Ltd2025
- MCG Lighting Ltd2023
- McGuire Holdings Limited2017
- McLymont Electrical and Building Services Limited2005
- MCM Electrical Solutions (London) Ltd2023
- McNeish Homes Limited2002
- MDBS Building Ltd2018
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are MCB Wiring Limited's accounts due?
MCB Wiring Limited's next accounts are due at Companies House by 21 October 2027 (in 373 days), covering the period to 31 January 2027.
When is MCB Wiring Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 20 January 2027, due by 20 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 MCB Wiring Limited still trading?
MCB Wiring Limited 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 MCB Wiring Limited do?
MCB Wiring Limited is registered under Electrical installation (SIC 43210).
How old is MCB Wiring Limited?
MCB Wiring Limited was incorporated on 21 January 2026, less than a year ago.
What is the penalty if MCB Wiring Limited 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 MCB Wiring Limited 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.