- Companies
- Electricians
- Bolton
- Southern Smart Energy Ltd
Southern Smart Energy Ltd
- Company number
- 15090894
- Incorporated
- 23 Aug 20233 years trading
- Registered office
- 3 Mason Street, Horwich, Bolton, BL6 5QP
- Nature of business
- Electrical installation; Other construction installation; Engineering related scientific and technical consulting activities; Other service activities n.e.c.
Southern Smart Energy Ltd is a 3-year-old private limited company registered in Bolton, company number 15090894, one of 221 electrical contractors in Bolton. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £17K (-38.6%) on the year before, to £27K.
- Current assets of £206K against £150K owed within a year: 1.4 times cover.
- 2 employees on average, up from -2 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £27K | £206K | £150K | 2 | |
| 31 Aug 2024 | £44K | £312K | £68K | -2 |
Where Southern Smart Energy Ltd is registered
The registered office is in Bolton (BL6), in the Bolton local authority area, North West. Show BL6 5QP on a map.
Other trade companies in BL6
- MR Pure Clean LtdCleaning companies
- DML HGV LimitedMechanics and garages
- TD Suction Excavations LtdSpecialist contractors
- Triple 3 Outdoor LtdFacilities management
- Meva Cleaning Solutions LtdCleaning companies
- Homefix Northwest LtdBuilders
- Al Performance Engineering LtdMechanics and garages
- Stansted Aircon LtdPlumbers and heating engineers
Also registered at this address
20 other companies use the same registered office as Southern Smart Energy Ltd.
- Adr Plant Solutions LtdMachinery repair and installation
- Avolgere LimitedProperty developers
- C M E Motors LtdMechanics and garages
- Clyde Maley & Sons LimitedProperty developers
- Evfm LtdElectricians
- Fire Tech Services UK LtdSpecialist contractors
- Heaton Gas Services LtdPlumbers and heating engineers
- Horwich Electrical LtdElectricians
- JD Landscapes NW LtdLandscapers and gardeners
- JJR Electrical & Sons LtdElectricians
- Jse Services NW LtdElectricians
- MT Inspections LtdSpecialist contractors
- Paragon Paving & Landscapes LtdSpecialist contractors
- Phase Two Bedrooms North West LimitedJoiners and carpenters
- R J Martindale LtdPlumbers and heating engineers
- Rock Solid Windows & Doors LimitedGlaziers
- Rothwell Solar LimitedElectricians
- Silver Birch Joinery LtdJoiners and carpenters
- Swift Paving & Civils LtdLandscapers and gardeners
- Wesgas LimitedPlumbers and heating engineers
What happens if Southern Smart Energy 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15090894
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 August 2023 (3 years ago)
- Registered office
- 3 Mason Street, Horwich, Bolton, BL6 5QP
- Nature of business
- Electrical installation (SIC 43210)
Other construction installation (SIC 43290)
Engineering related scientific and technical consulting activities (SIC 71122)
Other service activities n.e.c. (SIC 96090) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 June 2026
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 Bolton
Other active electrical contractors registered in Bolton.
- SP Electrical Services Ltd2018
- Sparkinusall Ltd2025
- SS Electrical Services Limited2009
- Stephen Wilson Electrical Ltd2017
- SV Automations Limited2025
- T & D Electrical Limited2003
- T&S Electrical Services Ltd2023
- Technical Alarms Ltd2023
All electrical contractors in Bolton · All trades in Bolton · Electricians across the UK
Frequently asked questions
When are Southern Smart Energy Ltd's accounts due?
Southern Smart Energy Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Southern Smart Energy Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Southern Smart Energy Ltd still trading?
Southern Smart Energy 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 Southern Smart Energy Ltd do?
Southern Smart Energy Ltd is registered under Electrical installation (SIC 43210); Other construction installation (SIC 43290); Engineering related scientific and technical consulting activities (SIC 71122); Other service activities n.e.c. (SIC 96090).
How old is Southern Smart Energy Ltd?
Southern Smart Energy Ltd was incorporated on 23 August 2023, 3 years ago.
What is the penalty if Southern Smart Energy 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 Southern Smart Energy 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.