- Companies
- Electricians
- London
- Ironvolt Ltd
Ironvolt Ltd
- Company number
- 17361680
- Incorporated
- 25 Jul 2026
- Registered office
- 4TH Floor Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Electrical installation
Ironvolt Ltd is a newly incorporated private limited company registered in London, company number 17361680, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 25 April 2028, and its first CT600 is due at HMRC on 24 July 2028.
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.
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Where Ironvolt Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 6EB on a map.
Other trade companies in W1T
- Preschools Cleaning Company LtdCleaning companies
- Northheat Plumbing & Heating LtdPlumbers and heating engineers
- Leuk Lift Engineering UK LtdMachinery repair and installation
- Az Maintenance Services LimitedFinishing trades
- Braintree Property Service LtdBuilders
- Nona Construction & Retrofit LtdBuilders
- Denvav LimitedBuilders
- Marshall Roofing Services LtdRoofers
Shared registered office
53 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Ironvolt 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 25 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Apr 2028 to 25 May 2028 | £150 |
| 1 to 3 months late | 26 May 2028 to 25 Jul 2028 | £375 |
| 3 to 6 months late | 26 Jul 2028 to 25 Oct 2028 | £750 |
| More than 6 months late | From 26 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2029 | 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
- 17361680
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2026
- Registered office
- 4TH Floor Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Irving Electrical Integration Ltd2015
- Ise London Ltd2021
- Isecurity Systems Limited2006
- Ish Electrical UK Ltd2026
- Islington Electrical Limited2013
- Italian Home Design Ltd2024
- Ivan Coyne Limited2014
- Iwatch CCTV Ltd2025
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Ironvolt Ltd's accounts due?
Ironvolt Ltd's next accounts are due at Companies House by 25 April 2028 (in 561 days), covering the period to 31 July 2027.
When is Ironvolt 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 24 July 2027, due by 24 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ironvolt Ltd still trading?
Ironvolt 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 Ironvolt Ltd do?
Ironvolt Ltd is registered under Electrical installation (SIC 43210).
How old is Ironvolt Ltd?
Ironvolt Ltd was incorporated on 25 July 2026, less than a year ago.
What is the penalty if Ironvolt 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 Ironvolt 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.