- Companies
- Machinery repair and installation
- Carrickfergus
- MJN Engineering Services Ltd
MJN Engineering Services Ltd
- Company number
- NI741913
- Incorporated
- 2 Jul 2026
- Registered office
- 2 Market Place, Carrickfergus, BT38 7AW
- Nature of business
- Repair and maintenance of aircraft and spacecraft
MJN Engineering Services Ltd is a newly incorporated private limited company registered in Carrickfergus, company number NI741913, one of 58 machinery repair and installation companies in Carrickfergus. Its next accounts are due at Companies House on 2 April 2028, and its first CT600 is due at HMRC on 1 July 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 MJN Engineering Services Ltd is registered
The registered office is in Carrickfergus (BT38), in the Mid and East Antrim local authority area, Northern Ireland. Show BT38 7AW on a map.
Other trade companies in BT38
- Bepsontee Autos LimitedMotor traders
- MK Aero Tech LtdMachinery repair and installation
- Agcontractingservices LtdMachinery repair and installation
- Elliott Electrical Contracts LtdInstallers
- CBNZ Aviation LtdMachinery repair and installation
- RCR (N.I.) LtdMechanics and garages
- McAtamney Garden Services LtdLandscapers and gardeners
- Medigas Engineering LimitedFacilities management
Shared registered office
68 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 MJN Engineering Services 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 2 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Apr 2028 to 2 May 2028 | £150 |
| 1 to 3 months late | 3 May 2028 to 2 Jul 2028 | £375 |
| 3 to 6 months late | 3 Jul 2028 to 2 Oct 2028 | £750 |
| More than 6 months late | From 3 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- NI741913
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 July 2026
- Registered office
- 2 Market Place, Carrickfergus, BT38 7AW
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Carrickfergus
Other active machinery repair and installation companies registered in Carrickfergus.
- MK Aero Tech Ltd2026
- ML Aerospace Ltd2017
- Murphy Aviation Services Ltd2026
- Oakley Aviation Ltd2025
- Oilibhiair Ltd2026
- Peak Performance Engineering Ltd2021
- PJK Aviation Ltd2016
- RL Lifts Ltd2025
All machinery repair and installation companies in Carrickfergus · All trades in Carrickfergus · Machinery repair and installation across the UK
Frequently asked questions
When are MJN Engineering Services Ltd's accounts due?
MJN Engineering Services Ltd's next accounts are due at Companies House by 2 April 2028 (in 538 days), covering the period to 31 July 2027.
When is MJN Engineering Services 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 1 July 2027, due by 1 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is MJN Engineering Services Ltd still trading?
MJN Engineering Services 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 MJN Engineering Services Ltd do?
MJN Engineering Services Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is MJN Engineering Services Ltd?
MJN Engineering Services Ltd was incorporated on 2 July 2026, less than a year ago.
What is the penalty if MJN Engineering Services 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 MJN Engineering Services 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.