- Companies
- Machinery repair and installation
- Larne
- TSM (N.I.) Ltd
TSM (N.I.) Ltd
- Company number
- NI736811
- Incorporated
- 12 Jan 2026
- Registered office
- Suite 4 Commercial Mews, 93-97 Main Street, Larne, BT40 1HJ
- Nature of business
- Repair and maintenance of aircraft and spacecraft
TSM (N.I.) Ltd is a newly incorporated private limited company registered in Larne, company number NI736811, one of 40 machinery repair and installation companies in Larne. Its next accounts are due at Companies House on 12 October 2027, and its first CT600 is due at HMRC on 11 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 TSM (N.I.) Ltd is registered
The registered office is in Larne (BT40), in the Mid and East Antrim local authority area, Northern Ireland. Show BT40 1HJ on a map.
Other trade companies in BT40
- GW Home Improvements and Maintenance LtdBuilders
- East Coast Contracting NI LtdBuilders
- Abbey Washing Machines LtdRepair services
- CM Fit Out & Construction LtdJoiners and carpenters
- Blackwood & Crawford LtdProperty developers
- TT Tiling LtdFloor and wall tilers
- JM Servicess LtdSpecialist contractors
- NPH Heating and Plumbing LtdPlumbers and heating engineers
Shared registered office
72 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 TSM (N.I.) 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 12 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 13 Oct 2027 to 12 Nov 2027 | £150 |
| 1 to 3 months late | 13 Nov 2027 to 12 Jan 2028 | £375 |
| 3 to 6 months late | 13 Jan 2028 to 12 Apr 2028 | £750 |
| More than 6 months late | From 13 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
- NI736811
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 January 2026
- Registered office
- Suite 4 Commercial Mews, 93-97 Main Street, Larne, BT40 1HJ
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 January (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 Larne
Other active machinery repair and installation companies registered in Larne.
- WJW Services Ltd2025
- Ada Services (N.I.) Limited2017
- Aviation Solutions KB Ltd2021
- BJG Solutions Ltd2024
- Cja (N.I.) Ltd2021
- CMCC Vehicle Solutions Ltd2024
- Coast Road Enterprises Ltd2020
- D and J Drain Services Limited2016
All machinery repair and installation companies in Larne · All trades in Larne · Machinery repair and installation across the UK
Frequently asked questions
When are TSM (N.I.) Ltd's accounts due?
TSM (N.I.) Ltd's next accounts are due at Companies House by 12 October 2027 (in 364 days), covering the period to 31 January 2027.
When is TSM (N.I.) 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 11 January 2027, due by 11 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 TSM (N.I.) Ltd still trading?
TSM (N.I.) 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 TSM (N.I.) Ltd do?
TSM (N.I.) Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is TSM (N.I.) Ltd?
TSM (N.I.) Ltd was incorporated on 12 January 2026, less than a year ago.
What is the penalty if TSM (N.I.) 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 TSM (N.I.) 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.