- Company number
- 16677386
- Incorporated
- 28 Aug 20251 year trading
- Registered office
- 85A Woodside Green, London, SE25 5HU
- Nature of business
- Construction of commercial buildings
MKM Building Supplies and Equipment Ltd is a 1-year-old private limited company registered in London, company number 16677386, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 28 May 2027, and its first CT600 is due at HMRC on 27 August 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 MKM Building Supplies and Equipment Ltd is registered
The registered office is in London (SE25), in the Croydon local authority area, London. Show SE25 5HU on a map.
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Also registered at this address
1 other company uses the same registered office as MKM Building Supplies and Equipment Ltd.
What happens if MKM Building Supplies and Equipment 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 28 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 May 2027 to 28 Jun 2027 | £150 |
| 1 to 3 months late | 29 Jun 2027 to 28 Aug 2027 | £375 |
| 3 to 6 months late | 29 Aug 2027 to 28 Nov 2027 | £750 |
| More than 6 months late | From 29 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16677386
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 August 2025 (1 year ago)
- Registered office
- 85A Woodside Green, London, SE25 5HU
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 August 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.
- Mkmebuildingservices Limited2024
- Mkmep Consulting Ltd2024
- MKP Building Services Ltd2019
- Mkpy Ltd2024
- MKR Scaffolding and Construction Ltd2022
- Mksbuildersconstructions Limited2023
- Mksummer Limited2016
- ML Builds Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are MKM Building Supplies and Equipment Ltd's accounts due?
MKM Building Supplies and Equipment Ltd's next accounts are due at Companies House by 28 May 2027 (in 227 days), covering the period to 31 August 2026.
When is MKM Building Supplies and Equipment 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 27 August 2026, due by 27 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is MKM Building Supplies and Equipment Ltd still trading?
MKM Building Supplies and Equipment 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 MKM Building Supplies and Equipment Ltd do?
MKM Building Supplies and Equipment Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is MKM Building Supplies and Equipment Ltd?
MKM Building Supplies and Equipment Ltd was incorporated on 28 August 2025, 1 year ago.
What is the penalty if MKM Building Supplies and Equipment 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 MKM Building Supplies and Equipment 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.