- Companies
- Finishing trades
- London
- MJB Builders Finchley Ltd
MJB Builders Finchley Ltd
- Company number
- 16930666
- Incorporated
- 24 Dec 2025
- Registered office
- 22 Squires Lane, London, N3 2AT
- Nature of business
- Other building completion and finishing
MJB Builders Finchley Ltd is a newly incorporated private limited company registered in London, company number 16930666, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 24 September 2027, and its first CT600 is due at HMRC on 23 December 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 MJB Builders Finchley Ltd is registered
The registered office is in London (N3), in the Barnet local authority area, London. Show N3 2AT on a map.
Other trade companies in N3
- Key & Keep LtdCleaning companies
- GMS Residential LimitedPlumbers and heating engineers
- Gcap East LtdProperty developers
- Tatras Development LimitedProperty developers
- Chesterfield Corinne LtdProperty developers
- Pure Plumbing Pros LimitedPlumbers and heating engineers
- WS Cleaning Services LtdCleaning companies
- Landfall Projects LimitedProperty developers
What happens if MJB Builders Finchley 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 24 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Sep 2027 to 24 Oct 2027 | £150 |
| 1 to 3 months late | 25 Oct 2027 to 24 Dec 2027 | £375 |
| 3 to 6 months late | 25 Dec 2027 to 24 Mar 2028 | £750 |
| More than 6 months late | From 25 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16930666
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 December 2025
- Registered office
- 22 Squires Lane, London, N3 2AT
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- MJHL Ltd2022
- MJW Roofing and Construction Limited2025
- MK Decorating Ltd2009
- MK Decorating Maintenance & Refurbishment Ltd2019
- MK Fix Limited2022
- MK Interiors Kitchens & Bedrooms Limited2016
- MK London Construction Ltd2018
- MK Property Services (London) Limited2022
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are MJB Builders Finchley Ltd's accounts due?
MJB Builders Finchley Ltd's next accounts are due at Companies House by 24 September 2027 (in 346 days), covering the period to 31 March 2027.
When is MJB Builders Finchley 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 23 December 2026, due by 23 December 2027, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is MJB Builders Finchley Ltd still trading?
MJB Builders Finchley 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 MJB Builders Finchley Ltd do?
MJB Builders Finchley Ltd is registered under Other building completion and finishing (SIC 43390).
How old is MJB Builders Finchley Ltd?
MJB Builders Finchley Ltd was incorporated on 24 December 2025, less than a year ago.
What is the penalty if MJB Builders Finchley 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 MJB Builders Finchley 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.