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  4. CMB Electrical Engineering UK Ltd

CMB Electrical Engineering UK Ltd

ActiveMicro-entity accountsElectriciansLisburn
Company number
NI675101
Incorporated
21 Dec 20205 years trading
Registered office
Office 10, 142A, Saintfield Road, Lisburn, BT27 6UH
Nature of business
Electrical installation
Accounts
Overdue
Were due 30 Sep 2025
Checked with Companies House 13 Oct 2026

CMB Electrical Engineering UK Ltd is a 5-year-old private limited company registered in Lisburn, company number NI675101, one of 27 electrical contractors in Lisburn. Companies House shows its accounts as overdue: they were due on 30 September 2025.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Sep 2025
Overdue by 378 days
For the period to 31 Dec 2024
CT600 due
31 Dec 2025
Date passed (HMRC does not publish filings)
Period 1 Jan 2024 to 31 Dec 2024
Corporation tax payment
1 Oct 2025
Date passed
9 months and 1 day after the period end
Confirmation statement
6 Feb 2027
in 116 days
Last made up to 23 Jan 2026

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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 £1.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 3 years, 2021 to 2023.

Net assets by year

Net assets at each year end, 2021 to 2023£0£131 December 2021: net assets £1£1202131 December 2022: net assets £1£1202231 December 2023: net assets £1£12023
Net assets at each year end, 2021 to 2023£0£131 December 2021: net assets £1£1202131 December 2022: net assets £1£1202231 December 2023: net assets £1£12023
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2023£1£10
31 Dec 2022£1£1
31 Dec 2021£1£1

Where CMB Electrical Engineering UK Ltd is registered

CMB Electrical Engineering UK Ltd's registered office on a map of the UK

The registered office is in Lisburn (BT27), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT27 6UH on a map.

Other trade companies in BT27

What happens if CMB Electrical Engineering UK Ltd files late

If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2025 to 31 Oct 2025£150
1 to 3 months late1 Nov 2025 to 31 Dec 2025£375
3 to 6 months late1 Jan 2026 to 31 Mar 2026£750
More than 6 months lateFrom 1 Apr 2026£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jan 2026£200
3 months late31 Mar 2026another £200
6 months late30 Jun 2026HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 2026another 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
NI675101
Status
Active
Company type
Private limited company
Incorporated
21 December 2020 (5 years ago)
Registered office
Office 10, 142A, Saintfield Road, Lisburn, BT27 6UH
Nature of business
Electrical installation (SIC 43210)
Year end
31 December (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 December 2023
Last confirmation statement
23 January 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 Lisburn

Other active electrical contractors registered in Lisburn.

All electrical contractors in Lisburn · All trades in Lisburn · Electricians across the UK

Frequently asked questions

When are CMB Electrical Engineering UK Ltd's accounts due?

CMB Electrical Engineering UK Ltd's accounts were due at Companies House on 30 September 2025 and the register shows them as overdue.

When is CMB Electrical Engineering UK Ltd's CT600 due?

The CT600 for the period to 31 December 2024 is due at HMRC by 31 December 2025, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2025.

Is CMB Electrical Engineering UK Ltd still trading?

CMB Electrical Engineering UK Ltd is listed as active on the Companies House register (checked 13 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 CMB Electrical Engineering UK Ltd do?

CMB Electrical Engineering UK Ltd is registered under Electrical installation (SIC 43210).

How old is CMB Electrical Engineering UK Ltd?

CMB Electrical Engineering UK Ltd was incorporated on 21 December 2020, 5 years ago.

What is the penalty if CMB Electrical Engineering UK 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 CMB Electrical Engineering UK Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.

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