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- Bignath Limited
Company profile · Civil engineering
Bignath Limited
Bignath Limited is a newly incorporated private limited company registered in London, company number 16839126, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 7 August 2027, and its first CT600 is due at HMRC on 6 November 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.
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Where Bignath Limited is registered
The registered office is in London (SE18), in the Greenwich local authority area, London. Show SE18 7SU on a map.
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What happens if Bignath 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 7 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Aug 2027 to 7 Sep 2027 | £150 |
| 1 to 3 months late | 8 Sep 2027 to 7 Nov 2027 | £375 |
| 3 to 6 months late | 8 Nov 2027 to 7 Feb 2028 | £750 |
| More than 6 months late | From 8 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16839126
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 November 2025
- Registered office
- 62 Vicarage Park, London, SE18 7SU
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 November (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.
- Bimm Ltd2023
- BJ Legend Ventures UK Ltd2017
- BKC Rail Ltd2026
- BKT Rail Limited2021
- Black Cone TM Ltd2026
- Black Temple Limited2018
- Blackstar Thermal Ltd2025
- Bldtech- Consult Ltd2019
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Bignath Limited's accounts due?
Bignath Limited's next accounts are due at Companies House by 7 August 2027 (in 299 days), covering the period to 30 November 2026.
When is Bignath 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 6 November 2026, due by 6 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Bignath Limited still trading?
Bignath 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 Bignath Limited do?
Bignath Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is Bignath Limited?
Bignath Limited was incorporated on 7 November 2025, less than a year ago.
What is the penalty if Bignath 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 Bignath Limited on Companies House for filed documents, officers and the full history.
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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.