- Companies
- Machinery repair and installation
- Argonaut Group Ltd
Argonaut Group Ltd
- Company number
- 16590754
- Incorporated
- 18 Jul 20251 year trading
- Registered office
- The Rising Sun, Fawkham Green, Fawkham, Kent, DA3 8NL
- Nature of business
- Repair of electrical equipment; Plumbing, heat and air-conditioning installation
Argonaut Group Ltd is a 1-year-old private limited company registered in Fawkham, company number 16590754, one of the UK's machinery repair and installation companies. Its next accounts are due at Companies House on 18 April 2027, and its first CT600 is due at HMRC on 17 July 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?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Argonaut Group LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Argonaut Group Ltd is registered
The registered office is in Fawkham (DA3), in the Sevenoaks local authority area, South East. Show DA3 8NL on a map.
Other trade companies in DA3
- Heat Exchangers LtdPlumbers and heating engineers
- Ohq Management LimitedFinishing trades
- J Roe Scaffolding LimitedScaffolders
- A T Installations (2026) LimitedPlumbers and heating engineers
- Interlock Plumbing & Heating LimitedPlumbers and heating engineers
- Window Medic Kent LimitedJoiners and carpenters
- BMDZ Group LtdCleaning companies
- Thain Air Conditioning Services LtdPlumbers and heating engineers
What happens if Argonaut Group 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 18 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Apr 2027 to 18 May 2027 | £150 |
| 1 to 3 months late | 19 May 2027 to 18 Jul 2027 | £375 |
| 3 to 6 months late | 19 Jul 2027 to 18 Oct 2027 | £750 |
| More than 6 months late | From 19 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16590754
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 July 2025 (1 year ago)
- Registered office
- The Rising Sun, Fawkham Green, Fawkham, Kent, DA3 8NL
- Nature of business
- Repair of electrical equipment (SIC 33140)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 July (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
Other active machinery repair and installation companies.
Frequently asked questions
When are Argonaut Group Ltd's accounts due?
Argonaut Group Ltd's next accounts are due at Companies House by 18 April 2027 (in 187 days), covering the period to 31 July 2026.
When is Argonaut Group 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 17 July 2026, due by 17 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Argonaut Group Ltd still trading?
Argonaut Group Ltd is listed as active on the Companies House register (checked 13 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 Argonaut Group Ltd do?
Argonaut Group Ltd is registered under Repair of electrical equipment (SIC 33140); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Argonaut Group Ltd?
Argonaut Group Ltd was incorporated on 18 July 2025, 1 year ago.
What is the penalty if Argonaut Group 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 Argonaut Group Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.