- Companies
- Machinery repair and installation
- Plymouth
- Tntjb Marine Limited
Tntjb Marine Limited
- Company number
- 14145122
- Incorporated
- 31 May 20224 years trading
- Registered office
- 46 Hemerdon Heights, Plymouth, PL7 2EY
- Nature of business
- Repair and maintenance of ships and boats
Tntjb Marine Limited is a 4-year-old private limited company registered in Plymouth, company number 14145122, one of 98 machinery repair and installation companies in Plymouth. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £1,897 (+7.3%) on the year before, to £28K.
- Current assets of £7,373 against £1,661 owed within a year: 4.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £28K | £2 | £7,373 | £1,661 | 1 |
| 31 May 2024 | £26K | £1,405 | £8,776 | £3,323 | 1 |
| 31 May 2023 | £25K | £41K | £41K | £38K | 1 |
Where Tntjb Marine Limited is registered
The registered office is in Plymouth (PL7), in the Plymouth local authority area, South West. Show PL7 2EY on a map.
Other trade companies in PL7
- Taurus Scaffolding SW LimitedScaffolders
- Devon German Motor Works LtdMechanics and garages
- Wae LimitedProperty developers
- Munera Construction LtdInstallers
- Vision Retail (Southern) LimitedProperty developers
- Moor to Coast Electrical Services SW LtdElectricians
- Sound Structural LtdSpecialist contractors
- Great White Estates LtdProperty developers
What happens if Tntjb Marine Limited 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
- 14145122
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 May 2022 (4 years ago)
- Registered office
- 46 Hemerdon Heights, Plymouth, PL7 2EY
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 30 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 Plymouth
Other active machinery repair and installation companies registered in Plymouth.
- Tony Hole Marine SW Limited2014
- UK Pack.Net Ltd2018
- Uni-Lec Contractors Limited2012
- Uplifto Ltd2014
- Voyager Boat Yard Limited2017
- Weee Recycle Ltd2019
- Welding Equipment Online Ltd2010
- Wells Marine Engineering Ltd2026
All machinery repair and installation companies in Plymouth · All trades in Plymouth · Machinery repair and installation across the UK
Frequently asked questions
When are Tntjb Marine Limited's accounts due?
Tntjb Marine Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Tntjb Marine Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Tntjb Marine Limited still trading?
Tntjb Marine Limited 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 Tntjb Marine Limited do?
Tntjb Marine Limited is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is Tntjb Marine Limited?
Tntjb Marine Limited was incorporated on 31 May 2022, 4 years ago.
What is the penalty if Tntjb Marine Limited 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 Tntjb Marine Limited 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.