- Companies
- Machinery repair and installation
- Southampton
- Summit Marine Ltd
Summit Marine Ltd
- Company number
- 16480594
- Incorporated
- 28 May 20251 year trading
- Registered office
- 32 the Park, Southampton, SO32 3QQ
- Nature of business
- Repair and maintenance of ships and boats; Service activities incidental to water transportation; Other business support service activities n.e.c.
Summit Marine Ltd is a 1-year-old private limited company registered in Southampton, company number 16480594, one of 224 machinery repair and installation companies in Southampton. Its next accounts are due at Companies House on 28 February 2027, and its first CT600 is due at HMRC on 27 May 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.
Is this your company?
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Where Summit Marine Ltd is registered
The registered office is in Southampton (SO32), in the Winchester local authority area, South East. Show SO32 3QQ on a map.
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What happens if Summit Marine 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16480594
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 May 2025 (1 year ago)
- Registered office
- 32 the Park, Southampton, SO32 3QQ
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Service activities incidental to water transportation (SIC 52220)
Other business support service activities n.e.c. (SIC 82990) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 May 2026
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 Southampton
Other active machinery repair and installation companies registered in Southampton.
- T D M Electric Limited2022
- Taj Autotech Ltd2013
- Tamarisk Marine Ltd2022
- Tecserv Cleaning Equipment Services Limited1997
- The Hot Tub Man Limited2021
- The Solent Boat Butler Limited2022
- The Vital Spark Marine Services Ltd2020
- Tma Electrical Ltd2011
All machinery repair and installation companies in Southampton · All trades in Southampton · Machinery repair and installation across the UK
Frequently asked questions
When are Summit Marine Ltd's accounts due?
Summit Marine Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Summit Marine 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 27 May 2026, due by 27 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Summit Marine Ltd still trading?
Summit Marine 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 Summit Marine Ltd do?
Summit Marine Ltd is registered under Repair and maintenance of ships and boats (SIC 33150); Service activities incidental to water transportation (SIC 52220); Other business support service activities n.e.c. (SIC 82990).
How old is Summit Marine Ltd?
Summit Marine Ltd was incorporated on 28 May 2025, 1 year ago.
What is the penalty if Summit Marine 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 Summit Marine 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.