- Companies
- Electricians
- London
- Potestas Services Limited
Potestas Services Limited
- Company number
- 11066855
- Incorporated
- 16 Nov 20178 years trading
- Registered office
- TC Group 6TH Floor Kings House, 9 - 10 Haymarket, London, SW1Y 4BP
- Nature of business
- Electrical installation
Potestas Services Limited is a 8-year-old private limited company registered in London, company number 11066855, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 29 November 2026, and its first CT600 is due at HMRC on 29 November 2026.
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 £4,002 (+9.3%) on the year before, to £47K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £17K against £7,168 owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 29 Nov 2024 | £47K | £7,882 | £17K | £7,168 | 0 |
| 29 Nov 2023 | £43K | £139 | £21K | £5,539 | 1 |
| 29 Nov 2022 | £40K | £30K | £22K | 1 | |
| 30 Nov 2021 | -£28K | £18K | £18K | £66K | 1 |
| 30 Nov 2020 | -£58K | £4,033 | £4,034 | £62K | 0 |
| 30 Nov 2019 | -£28K | £2,111 | £30K | 0 | |
| 30 Nov 2018 | -£16K | £16K | £33K | 1 |
Where Potestas Services Limited is registered
The registered office is in London (SW1Y), in the Westminster local authority area, London. Show SW1Y 4BP on a map.
Other trade companies in SW1Y
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- Blackstone Stay Management LtdBuilders
- Blackstone Construction Management LtdBuilders
- Star Plant Construction & Property Management LtdBuilders
- Star Plant Construction Works LtdGroundworks and demolition
- Premier Construction Works LtdGroundworks and demolition
- Premier Construction & Real Estate Management LtdBuilders
Also registered at this address
6 other companies use the same registered office as Potestas Services Limited.
- North London Head Gardeners LtdLandscapers and gardeners
- One United LimitedProperty developers
- Sale United LimitedProperty developers
- Shannon Utilities LimitedSpecialist contractors
- Sworks LimitedSpecialist contractors
- Turnstone Group LimitedProperty developers
What happens if Potestas Services 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 29 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Nov 2026 to 29 Dec 2026 | £150 |
| 1 to 3 months late | 30 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 29 May 2027 | £750 |
| More than 6 months late | From 30 May 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
- 11066855
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 November 2017 (8 years ago)
- Registered office
- TC Group 6TH Floor Kings House, 9 - 10 Haymarket, London, SW1Y 4BP
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 November 2024
- Last confirmation statement
- 15 November 2025
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 London
Other active electrical contractors registered in London.
- Power & Pipes Ltd2022
- Power Connexions Limited2011
- Power Delivery Co Ltd2025
- Power Electrical Services LDN Limited2022
- Power Energy Net Ltd2017
- Power Factor Electrical Ltd2026
- Power Fix Electrical Solutions Ltd2023
- Power Link Electrical Solutions Ltd2011
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Potestas Services Limited's accounts due?
Potestas Services Limited's next accounts are due at Companies House by 29 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Potestas Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 November 2025, due by 29 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Potestas Services Limited still trading?
Potestas Services 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 Potestas Services Limited do?
Potestas Services Limited is registered under Electrical installation (SIC 43210).
How old is Potestas Services Limited?
Potestas Services Limited was incorporated on 16 November 2017, 8 years ago.
What is the penalty if Potestas Services 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 Potestas Services 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.