- Companies
- Civil engineering
- London
- Autron UK Limited
Autron UK Limited
- Company number
- 17393308
- Incorporated
- 11 Aug 2026
- Registered office
- Laytons Etl Yarnwicke, 119-121 Cannon Street, London, EC4N 5AT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Autron UK Limited is a newly incorporated private limited company registered in London, company number 17393308, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 11 May 2028, and its first CT600 is due at HMRC on 10 August 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.
Is this your company?
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Where Autron UK Limited is registered
The registered office is in London (EC4N), in the City of London local authority area, London. Show EC4N 5AT on a map.
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What happens if Autron UK Limited 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 11 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 May 2028 to 11 Jun 2028 | £150 |
| 1 to 3 months late | 12 Jun 2028 to 11 Aug 2028 | £375 |
| 3 to 6 months late | 12 Aug 2028 to 11 Nov 2028 | £750 |
| More than 6 months late | From 12 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 17393308
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2026
- Registered office
- Laytons Etl Yarnwicke, 119-121 Cannon Street, London, EC4N 5AT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (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.
- Av Fitting Ltd2024
- Aventura UK Limited2000
- Avesta Building Services Ltd2003
- Avm Utilities Ltd2024
- Avram Engineering Limited2025
- Axis Consultancy & Services Ltd2024
- Axj Visuals Ltd2026
- Axon NW Ltd2023
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Autron UK Limited's accounts due?
Autron UK Limited's next accounts are due at Companies House by 11 May 2028 (in 576 days), covering the period to 31 August 2027.
When is Autron UK Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 10 August 2027, due by 10 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Autron UK Limited still trading?
Autron UK Limited 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 Autron UK Limited do?
Autron UK Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Autron UK Limited?
Autron UK Limited was incorporated on 11 August 2026, less than a year ago.
What is the penalty if Autron UK Limited 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 Autron UK Limited 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.