- Company number
- 16769939
- Incorporated
- 7 Oct 20251 year trading
- Registered office
- 160B Boleyn Road, London, E7 9QG
- Nature of business
- Construction of domestic buildings; Other specialised construction activities n.e.c.
JK and Sons London Limited is a 1-year-old private limited company registered in London, company number 16769939, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 7 July 2027, and its first CT600 is due at HMRC on 6 October 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?
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Where JK and Sons London Limited is registered
The registered office is in London (E7), in the Newham local authority area, London. Show E7 9QG on a map.
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What happens if JK and Sons London 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Jul 2027 to 7 Aug 2027 | £150 |
| 1 to 3 months late | 8 Aug 2027 to 7 Oct 2027 | £375 |
| 3 to 6 months late | 8 Oct 2027 to 7 Jan 2028 | £750 |
| More than 6 months late | From 8 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16769939
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2025 (1 year ago)
- Registered office
- 160B Boleyn Road, London, E7 9QG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- JK Brothers Rendering Ltd2024
- JK Builders Services Ltd2021
- JK Building Construction Limited2016
- JK Building Ltd2023
- JK Carpenter Ltd2015
- JK Construction Cheshire Ltd2023
- JK General Construction Ltd2024
- JK&K Construction Limited2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are JK and Sons London Limited's accounts due?
JK and Sons London Limited's next accounts are due at Companies House by 7 July 2027 (in 267 days), covering the period to 31 October 2026.
When is JK and Sons London 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 October 2026, due by 6 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is JK and Sons London Limited still trading?
JK and Sons London 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 JK and Sons London Limited do?
JK and Sons London Limited is registered under Construction of domestic buildings (SIC 41202); Other specialised construction activities n.e.c. (SIC 43999).
How old is JK and Sons London Limited?
JK and Sons London Limited was incorporated on 7 October 2025, 1 year ago.
What is the penalty if JK and Sons London 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 JK and Sons London 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.