- Companies
- Machinery repair and installation
- Ipswich
- Seapower Marine Electronics Limited
Seapower Marine Electronics Limited
- Company number
- 06500075
- Incorporated
- 11 Feb 200818 years trading
- Registered office
- Suffolk Yacht Harbour Suffolk Yacht Harbour, Levington, Ipswich, IP10 0LN
- Nature of business
- Repair and maintenance of ships and boats
Seapower Marine Electronics Limited is a 18-year-old private limited company registered in Ipswich, company number 06500075, one of 116 machinery repair and installation companies in Ipswich. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Seapower Marine Electronics LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £35K (+11.9%) on the year before, to £327K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £424K against £121K owed within a year: 3.5 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £327K | £282K | £424K | £121K | 4 |
| 31 Dec 2024 | £293K | £32K | £357K | £99K | 4 |
| 31 Dec 2023 | £272K | £104K | £291K | £86K | 5 |
| 31 Dec 2022 | £248K | £112K | £280K | £77K | 4 |
| 31 Dec 2021 | £168K | £273K | £96K | 4 | |
| 31 Mar 2021 | £112K | £237K | £135K | 4 | |
| 31 Mar 2020 | £129K | £202K | £62K | 4 | |
| 31 Mar 2019 | £106K | £180K | £84K | ||
| 31 Mar 2018 | £66K | £148K | £99K | ||
| 31 Mar 2017 | £30K | £78K | £63K |
Where Seapower Marine Electronics Limited is registered
The registered office is in Ipswich (IP10), in the East Suffolk local authority area, East of England. Show IP10 0LN on a map.
Other trade companies in IP10
- Brightwell Autos LtdMotor traders
- Green East Group LtdElectricians
- O.Brader Plumbing and Heating LtdPlumbers and heating engineers
- Fitcore Europe Build LimitedBuilders
- Acorn Trees Ipswich LimitedLandscapers and gardeners
- Trivium Developments LimitedPlasterers
- Ridgeback Estates 101 LtdBuilders
- LPH Automotive LtdMotor traders
What happens if Seapower Marine Electronics 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 06500075
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 February 2008 (18 years ago)
- Registered office
- Suffolk Yacht Harbour Suffolk Yacht Harbour, Levington, Ipswich, IP10 0LN
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 9 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 Ipswich
Other active machinery repair and installation companies registered in Ipswich.
- Seapower Marine Limited2000
- Shipp Shape Limited2009
- Simon P Oram Ltd2024
- Simply Climate Control Limited2014
- Skymount Properties Ltd2026
- Slick Motion Engineering Ltd2026
- ST Cooker Services Ltd1997
- Suffolk Welding & Fabrication Ltd2020
All machinery repair and installation companies in Ipswich · All trades in Ipswich · Machinery repair and installation across the UK
Frequently asked questions
When are Seapower Marine Electronics Limited's accounts due?
Seapower Marine Electronics Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Seapower Marine Electronics Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Seapower Marine Electronics Limited still trading?
Seapower Marine Electronics 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 Seapower Marine Electronics Limited do?
Seapower Marine Electronics Limited is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is Seapower Marine Electronics Limited?
Seapower Marine Electronics Limited was incorporated on 11 February 2008, 18 years ago.
What is the penalty if Seapower Marine Electronics 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 Seapower Marine Electronics 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.