- Companies
- Electricians
- Belfast
- Mourne Electrix Ltd
Mourne Electrix Ltd
- Company number
- NI736294
- Incorporated
- 17 Dec 2025
- Registered office
- Office 1535, 92 Castle Street, Belfast, BT1 1HE
- Nature of business
- Electrical installation
Mourne Electrix Ltd is a newly incorporated private limited company registered in Belfast, company number NI736294, one of 126 electrical contractors in Belfast. Its next accounts are due at Companies House on 17 September 2027, and its first CT600 is due at HMRC on 16 December 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 Mourne Electrix Ltd is registered
The registered office is in Belfast (BT1), in the Belfast local authority area, Northern Ireland. Show BT1 1HE on a map.
Other trade companies in BT1
- Atlas Property and Holdings LtdProperty developers
- Geohac LimitedGroundworks and demolition
- XM Vehicle Solutions LimitedMotor traders
- Shine Renewables NI LimitedElectricians
- The Rathstone Group LtdCleaning companies
- Chenyukeji LtdMotor traders
- Linnexttech Shop LtdMotor traders
- Techright Environmental Ireland LtdCleaning companies
What happens if Mourne Electrix 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 17 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Sep 2027 to 17 Oct 2027 | £150 |
| 1 to 3 months late | 18 Oct 2027 to 17 Dec 2027 | £375 |
| 3 to 6 months late | 18 Dec 2027 to 17 Mar 2028 | £750 |
| More than 6 months late | From 18 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- NI736294
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2025
- Registered office
- Office 1535, 92 Castle Street, Belfast, BT1 1HE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (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 Belfast
Other active electrical contractors registered in Belfast.
- N.Brown Electrical Ltd2021
- N.I. Solar Roofs Limited2012
- Nelson Electrical Contracts Limited2023
- Nugent Electricals Services Ltd2025
- One Electrical Services (N.I.) Limited2025
- Onm Electrical Ltd2026
- P B Proctor Electrical Limited2012
- P Lavery & Sons Limited2013
All electrical contractors in Belfast · All trades in Belfast · Electricians across the UK
Frequently asked questions
When are Mourne Electrix Ltd's accounts due?
Mourne Electrix Ltd's next accounts are due at Companies House by 17 September 2027 (in 339 days), covering the period to 31 December 2026.
When is Mourne Electrix 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 16 December 2026, due by 16 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mourne Electrix Ltd still trading?
Mourne Electrix 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 Mourne Electrix Ltd do?
Mourne Electrix Ltd is registered under Electrical installation (SIC 43210).
How old is Mourne Electrix Ltd?
Mourne Electrix Ltd was incorporated on 17 December 2025, less than a year ago.
What is the penalty if Mourne Electrix 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 Mourne Electrix 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.