- Companies
- Machinery repair and installation
- Oxford
- JT Marine Ltd
JT Marine Ltd
- Company number
- 14896979
- Incorporated
- 26 May 20233 years trading
- Registered office
- 1 Tilbury Lane, Oxford, OX2 9NB
- Nature of business
- Repair and maintenance of ships and boats; Other service activities n.e.c.
JT Marine Ltd is a 3-year-old private limited company registered in Oxford, company number 14896979, one of 21 machinery repair and installation companies in Oxford. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 up £6,701 (+794.9%) on the year before, to £7,544.
- Current assets of £13K against £4,712 owed within a year: 2.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £7,544 | £13K | £4,712 | 1 | |
| 30 Jun 2024 | £843 | £3,642 | £2,259 | 1 |
Who runs and owns JT Marine Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| P*** T*** | Director | May 2023 |
Person with significant control
Where JT Marine Ltd is registered
The registered office is in Oxford (OX2), in the Vale of White Horse local authority area, South East. Show OX2 9NB on a map.
Other trade companies in OX2
- Construction Concierge LimitedBuilders
- Crest Maintenance Oxford LtdPainters and decorators
- Oxford Design & Build LimitedBuilders
- Paradisus Gardens LimitedLandscapers and gardeners
- Thumb and Thimble LtdRepair services
- Aj Berry LtdElectricians
- Ox Power and Renewables LtdElectricians
- Macpro GW LimitedProperty developers
What happens if JT 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 14896979
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 May 2023 (3 years ago)
- Registered office
- 1 Tilbury Lane, Oxford, OX2 9NB
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Other service activities n.e.c. (SIC 96090) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 25 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 Oxford
Other active machinery repair and installation companies registered in Oxford.
- LGL Power Limited2026
- Nautiques UK Ltd2006
- Nevada Air Conditioning & Refrigeration Ltd2026
- Newparts (Oxford) Ltd2010
- Nexval Ltd2026
- Oxford Rowing Services Ltd2025
- Oxford Violins Limited2003
- Propresso.Co.UK Ltd2022
All machinery repair and installation companies in Oxford · All trades in Oxford · Machinery repair and installation across the UK
Frequently asked questions
When are JT Marine Ltd's accounts due?
JT Marine Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is JT Marine Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is JT Marine Ltd still trading?
JT 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 JT Marine Ltd do?
JT Marine Ltd is registered under Repair and maintenance of ships and boats (SIC 33150); Other service activities n.e.c. (SIC 96090).
How old is JT Marine Ltd?
JT Marine Ltd was incorporated on 26 May 2023, 3 years ago.
Who runs JT Marine Ltd?
JT Marine Ltd has 1 active director, the longest-serving appointed in May 2023. Their names and service addresses are on the Companies House register.
Who owns JT Marine Ltd?
One person or company has significant control of JT Marine Ltd: an individual (owns 75% or more of the shares).
What is the penalty if JT 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 JT 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.