Cu Power Ltd
- Company number
- 16785175
- Incorporated
- 14 Oct 2025
- Registered office
- Morianfa, Morfa Bychan, Porthmadog, LL49 9YD
- Nature of business
- Repair of electrical equipment
Cu Power Ltd is a newly incorporated private limited company registered in Porthmadog, company number 16785175, one of 8 machinery repair and installation companies in Porthmadog. Its next accounts are due at Companies House on 14 July 2027, and its first CT600 is due at HMRC on 13 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Cu Power Ltd is registered
The registered office is in Porthmadog (LL49), in the Gwynedd local authority area, Wales. Show LL49 9YD on a map.
Other trade companies in LL49
- D.Thomas Electrical CyfElectricians
- N Commercial LtdMotor traders
- Bricsan CyfProperty developers
- White Diamond Windows LtdGlaziers
- Porthmadog No1 Hand Car Wash LtdCleaning companies
- Dragon Drone Surveys & Inspections LimitedGroundworks and demolition
- Carwyn Ap Plymio A Gwresogi CyfPlumbers and heating engineers
- Llyn Access Scaffolding LtdScaffolders
What happens if Cu Power 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 14 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Jul 2027 to 14 Aug 2027 | £150 |
| 1 to 3 months late | 15 Aug 2027 to 14 Oct 2027 | £375 |
| 3 to 6 months late | 15 Oct 2027 to 14 Jan 2028 | £750 |
| More than 6 months late | From 15 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16785175
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 October 2025
- Registered office
- Morianfa, Morfa Bychan, Porthmadog, LL49 9YD
- Nature of business
- Repair of electrical equipment (SIC 33140)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
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 Porthmadog
Other active machinery repair and installation companies registered in Porthmadog.
- Gwyn E Cyf2014
- Gwynedd Cash Registers Ltd2006
- Hamdden Caravans Limited2017
- Peirianwaith Eifionydd Engineering Ltd2018
- Ron Hughes HPS Limited2016
- Brython Tecwyn Cyf2011
- Chiara Limited1999
All machinery repair and installation companies in Porthmadog · All trades in Porthmadog · Machinery repair and installation across the UK
Frequently asked questions
When are Cu Power Ltd's accounts due?
Cu Power Ltd's next accounts are due at Companies House by 14 July 2027 (in 275 days), covering the period to 31 October 2026.
When is Cu Power Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 October 2026, due by 13 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cu Power Ltd still trading?
Cu Power 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 Cu Power Ltd do?
Cu Power Ltd is registered under Repair of electrical equipment (SIC 33140).
How old is Cu Power Ltd?
Cu Power Ltd was incorporated on 14 October 2025, less than a year ago.
What is the penalty if Cu Power 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 Cu Power 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.