- Company number
- 14176727
- Incorporated
- 16 Jun 20224 years trading
- Registered office
- 42 Lewis Place, Dalston Lane, London, E8 1PQ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Mart&Kaz Contractors Ltd is a 4-year-old private limited company registered in London, company number 14176727, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £34K on the year before, to £35K.
- Current assets of £47K against £13K owed within a year: 3.8 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £35K | £47K | £13K | 2 | |
| 30 Jun 2024 | £1,132 | £1,132 | 2 | ||
| 30 Jun 2023 | £685 | £685 | 2 |
Where Mart&Kaz Contractors Ltd is registered
The registered office is in London (E8), in the Hackney local authority area, London. Show E8 1PQ on a map.
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What happens if Mart&Kaz Contractors 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 14176727
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 June 2022 (4 years ago)
- Registered office
- 42 Lewis Place, Dalston Lane, London, E8 1PQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 8 July 2026
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.
- Martin JD Construction Limited2018
- Martin19 Ltd2021
- Martinelli Group Ltd2026
- Martinezanlytics Limited2025
- Martins Builders & Decorators Limited2013
- Martins Tiling Ltd2026
- Maruti Properties Management Limited2025
- Marvel Construct Ltd2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Mart&Kaz Contractors Ltd's accounts due?
Mart&Kaz Contractors Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Mart&Kaz Contractors Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Mart&Kaz Contractors Ltd still trading?
Mart&Kaz Contractors 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 Mart&Kaz Contractors Ltd do?
Mart&Kaz Contractors Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Mart&Kaz Contractors Ltd?
Mart&Kaz Contractors Ltd was incorporated on 16 June 2022, 4 years ago.
What is the penalty if Mart&Kaz Contractors 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 Mart&Kaz Contractors 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.