- Companies
- Machinery repair and installation
- Knottingley
- John Harker's Shipyard Ltd
John Harker's Shipyard Ltd
- Company number
- 12450329
- Incorporated
- 7 Feb 20206 years trading
- Registered office
- The Slipway, Fernley Green Road, Knottingley, WF11 8DH
- Nature of business
- Repair and maintenance of ships and boats
John Harker's Shipyard Ltd is a 6-year-old private limited company registered in Knottingley, company number 12450329, one of 11 machinery repair and installation companies in Knottingley. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £2,518 (+74.8%) on the year before, to £5,884.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £5,884 | £5,884 | 0 | ||
| 29 Feb 2024 | £3,366 | £3,366 | £0 | 0 | |
| 28 Feb 2023 | £8,645 | £8,645 | £0 | 1 | |
| 28 Feb 2022 | £4,797 | £4,797 | £0 | 0 | |
| 28 Feb 2021 | £3,008 | £1,223 | £0 | 0 |
Where John Harker's Shipyard Ltd is registered
The registered office is in Knottingley (WF11), in the Wakefield local authority area, Yorkshire and The Humber. Show WF11 8DH on a map.
Other trade companies in WF11
- Grout Line Tiling LtdFloor and wall tilers
- WVR Building Services LtdFacilities management
- Crosland Property Group LtdProperty developers
- Rca Industrial Solutions LtdMachinery repair and installation
- Veridian Plant Hire LtdGroundworks and demolition
- McAteer Developments LtdProperty developers
- Agw Pipework LimitedSpecialist contractors
- Elite Data Cabling LtdCivil engineering
What happens if John Harker's Shipyard 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 12450329
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2020 (6 years ago)
- Registered office
- The Slipway, Fernley Green Road, Knottingley, WF11 8DH
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 6 February 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 Knottingley
Other active machinery repair and installation companies registered in Knottingley.
- LC Plant Services Ltd2017
- Pswelding&Engineering Ltd2012
- Rca Industrial Solutions Ltd2026
- Rhe Plant Limited2026
- Russell's Machinery Inspection Services Limited2025
- Thorpe Brothers Limited2003
- Trans-Fix Commercials Limited2012
- Astech Engineering Services Ltd2014
All machinery repair and installation companies in Knottingley · All trades in Knottingley · Machinery repair and installation across the UK
Frequently asked questions
When are John Harker's Shipyard Ltd's accounts due?
John Harker's Shipyard Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is John Harker's Shipyard Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is John Harker's Shipyard Ltd still trading?
John Harker's Shipyard 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 John Harker's Shipyard Ltd do?
John Harker's Shipyard Ltd is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is John Harker's Shipyard Ltd?
John Harker's Shipyard Ltd was incorporated on 7 February 2020, 6 years ago.
What is the penalty if John Harker's Shipyard 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 John Harker's Shipyard 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.