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- Trydan Engineering Ltd
Company profile · Electricians
Trydan Engineering Ltd
Trydan Engineering Ltd is a 1-year-old private limited company registered in Swansea, company number 16060483, one of 148 electrical contractors in Swansea. Its next accounts are due at Companies House on 4 November 2026, and its first CT600 is due at HMRC on 3 November 2026.
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 Trydan Engineering Ltd is registered
The registered office is in Swansea (SA7), in the Swansea local authority area, Wales. Show SA7 9JT on a map.
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- Eveo Engineering LtdElectricians
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- Ogm Pristine Cleaning LtdCleaning companies
What happens if Trydan Engineering 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 4 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Nov 2026 to 4 Dec 2026 | £150 |
| 1 to 3 months late | 5 Dec 2026 to 4 Feb 2027 | £375 |
| 3 to 6 months late | 5 Feb 2027 to 4 May 2027 | £750 |
| More than 6 months late | From 5 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 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 | 30 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
- 16060483
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 November 2024 (1 year ago)
- Registered office
- 151 Birchgrove Road, Birchgrove, Swansea, SA7 9JT
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 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 Swansea
Other active electrical contractors registered in Swansea.
- Ulex Energy Ltd2025
- Wave Energy Ltd2026
- Williams Electrical SW Ltd2023
- WLL Wanderer Holding Ltd2026
- A Bright Solution UK Limited2012
- A. & B. Electrics Limited2002
- A. Lloyd Electrical & Solar Limited2010
- Ab Solar Developments Ltd2025
All electrical contractors in Swansea · All trades in Swansea · Electricians across the UK
Frequently asked questions
When are Trydan Engineering Ltd's accounts due?
Trydan Engineering Ltd's next accounts are due at Companies House by 4 November 2026 (in 23 days), covering the period to 30 March 2026.
When is Trydan Engineering 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 3 November 2025, due by 3 November 2026, and one for the period to 30 March 2026, due by 30 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Trydan Engineering Ltd still trading?
Trydan Engineering 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 Trydan Engineering Ltd do?
Trydan Engineering Ltd is registered under Electrical installation (SIC 43210).
How old is Trydan Engineering Ltd?
Trydan Engineering Ltd was incorporated on 4 November 2024, 1 year ago.
What is the penalty if Trydan Engineering 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 Trydan Engineering 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.