- Companies
- Electricians
- Southampton
- Idec Ltd
Idec Ltd
- Company number
- 06381395
- Incorporated
- 25 Sep 200719 years trading
- Registered office
- 118 Columbus Drive, Sarisbury Green, Southampton, SO31 7NJ
- Nature of business
- Electrical installation
Idec Ltd is a 19-year-old private limited company registered in Southampton, company number 06381395, one of 342 electrical contractors in Southampton. Its next accounts are due at Companies House on 29 October 2026, and the CT600 for the period to 29 January 2026 is due at HMRC on 29 January 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 down £4,757 (-73.7%) on the year before, to £1,700.
- Net assets rose in 5 of 9 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 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1,700 | £13 | £66K | 0 | |
| 31 Mar 2024 | £6,457 | £6,392 | £87K | £72K | 1 |
| 31 Mar 2023 | £45 | £81K | £70K | 1 | |
| 31 Mar 2022 | £155 | £700 | £71K | £58K | 2 |
| 31 Mar 2021 | £215 | £900 | £58K | £42K | 3 |
| 31 Mar 2020 | £33 | £3,092 | £26K | £29K | 3 |
| 31 Mar 2019 | £185 | £23K | £26K | ||
| 31 Mar 2018 | £84 | £25K | £25K | ||
| 31 Mar 2017 | £10 | £19K | £20K | ||
| 31 Mar 2016 | -£21 | £0 | £15K | £17K |
Where Idec Ltd is registered
The registered office is in Southampton (SO31), in the Fareham local authority area, South East. Show SO31 7NJ on a map.
Other trade companies in SO31
- MNC Cleaning LtdCleaning companies
- Mars Eng. LtdMachinery repair and installation
- Amc Plumbing and Heating LtdPlumbers and heating engineers
- Pride & Bloom LtdLandscapers and gardeners
- Hampshire Heating and Cooling LtdPlumbers and heating engineers
- Kelpie Landscape & Build LtdFinishing trades
- FSC Facilities Services LtdInstallers
- Fitton & Redding Services LimitedMechanics and garages
What happens if Idec 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 29 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Oct 2026 to 29 Nov 2026 | £150 |
| 1 to 3 months late | 30 Nov 2026 to 29 Jan 2027 | £375 |
| 3 to 6 months late | 30 Jan 2027 to 29 Apr 2027 | £750 |
| More than 6 months late | From 30 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jan 2027 | £200 |
| 3 months late | 29 Apr 2027 | another £200 |
| 6 months late | 29 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jan 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
- 06381395
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 September 2007 (19 years ago)
- Registered office
- 118 Columbus Drive, Sarisbury Green, Southampton, SO31 7NJ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 September 2025
- Previous names
- I D Electrical Southern Ltd (until 25 Feb 2013)
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Southampton
Other active electrical contractors registered in Southampton.
- Imagine Electrical Ltd2024
- Infinigreen Limited2021
- Infinity Energy Services Limited2011
- Intandem Systems Limited1997
- J J E S Limited2004
- J Lampard Electrical Ltd2004
- J Volt Electrical Limited2024
- Jam Electrical (Southampton) Ltd2013
All electrical contractors in Southampton · All trades in Southampton · Electricians across the UK
Frequently asked questions
When are Idec Ltd's accounts due?
Idec Ltd's next accounts are due at Companies House by 29 October 2026 (in 17 days), covering the period to 29 January 2026.
When is Idec Ltd's CT600 due?
The CT600 for the period to 29 January 2026 is due at HMRC by 29 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 October 2026.
Is Idec Ltd still trading?
Idec Ltd is listed as active on the Companies House register (checked 12 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 Idec Ltd do?
Idec Ltd is registered under Electrical installation (SIC 43210).
How old is Idec Ltd?
Idec Ltd was incorporated on 25 September 2007, 19 years ago.
What is the penalty if Idec 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 Idec Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.