- Companies
- Civil engineering
- London
- Isle of Tri Ltd
Isle of Tri Ltd
- Company number
- 16752321
- Incorporated
- 30 Sep 20251 year trading
- Registered office
- 109 Goddard Place, London, N19 5GT
- Nature of business
- Construction of other civil engineering projects n.e.c.; Management consultancy activities other than financial management; Other engineering activities; Other sports activities
Isle of Tri Ltd is a 1-year-old private limited company registered in London, company number 16752321, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 30 June 2027, and its first CT600 is due at HMRC on 29 September 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 Isle of Tri 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 Isle of Tri Ltd is registered
The registered office is in London (N19), in the Islington local authority area, London. Show N19 5GT on a map.
Other trade companies in N19
- DR Pro Services LtdCleaning companies
- Rams Property Services LtdSpecialist contractors
- Lushi Plumbing and Heating LtdPlumbers and heating engineers
- One Fix Gutter Solutions LtdRoofers
- Mmway Construction LtdSpecialist contractors
- Elio's Landscaping Ltd LtdBuilders
- Novix Smart Wash LtdMachinery repair and installation
- Alex Maintenance LtdPainters and decorators
What happens if Isle of Tri 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16752321
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 September 2025 (1 year ago)
- Registered office
- 109 Goddard Place, London, N19 5GT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Management consultancy activities other than financial management (SIC 70229)
Other engineering activities (SIC 71129)
Other sports activities (SIC 93199) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Italservices Ltd2025
- Itc Constructions Ltd2015
- Ivp BG Ltd2024
- J Addy Engineering Limited2025
- J E Reinstatement Ltd2026
- J F Property Maintenance Limited2006
- J Miles Ev Solutions Ltd2023
- J Track Ltd2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Isle of Tri Ltd's accounts due?
Isle of Tri Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Isle of Tri 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 29 September 2026, due by 29 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Isle of Tri Ltd still trading?
Isle of Tri 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 Isle of Tri Ltd do?
Isle of Tri Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Management consultancy activities other than financial management (SIC 70229); Other engineering activities (SIC 71129); Other sports activities (SIC 93199).
How old is Isle of Tri Ltd?
Isle of Tri Ltd was incorporated on 30 September 2025, 1 year ago.
What is the penalty if Isle of Tri 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 Isle of Tri 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.