- Companies
- Installers
- Milton Keynes
- C.S.R Group 1 Ltd
C.S.R Group 1 Ltd
- Company number
- 16604332
- Incorporated
- 24 Jul 20251 year trading
- Registered office
- Unit 208 Milton Keynes Business Centre Hayley Court, Linford Wood, Milton Keynes, MK14 6GD
- Nature of business
- Other construction installation
C.S.R Group 1 Ltd is a 1-year-old private limited company registered in Milton Keynes, company number 16604332, one of 128 installation companies (insulation, lifts, shutters and similar) in Milton Keynes. Its next accounts are due at Companies House on 24 April 2027, and its first CT600 is due at HMRC on 23 July 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 C.S.R Group 1 Ltd is registered
The registered office is in Milton Keynes (MK14), in the Milton Keynes local authority area, South East. Show MK14 6GD on a map.
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What happens if C.S.R Group 1 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Apr 2027 to 24 May 2027 | £150 |
| 1 to 3 months late | 25 May 2027 to 24 Jul 2027 | £375 |
| 3 to 6 months late | 25 Jul 2027 to 24 Oct 2027 | £750 |
| More than 6 months late | From 25 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16604332
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2025 (1 year ago)
- Registered office
- Unit 208 Milton Keynes Business Centre Hayley Court, Linford Wood, Milton Keynes, MK14 6GD
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 23 July 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Milton Keynes
Other active installation companies (insulation, lifts, shutters and similar) registered in Milton Keynes.
- Ca Formwork Limited2015
- Cityarch Limited1975
- Complete Build Construction Limited2012
- Constantinovlad Ltd2022
- Construction MK Ltd2019
- Contemporary Interiors Ltd2019
- Core Blimey (UK) Limited2008
- Coreground Engineering Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Milton Keynes · All trades in Milton Keynes · Installers across the UK
Frequently asked questions
When are C.S.R Group 1 Ltd's accounts due?
C.S.R Group 1 Ltd's next accounts are due at Companies House by 24 April 2027 (in 193 days), covering the period to 31 July 2026.
When is C.S.R Group 1 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 July 2026, due by 23 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is C.S.R Group 1 Ltd still trading?
C.S.R Group 1 Ltd is listed as active on the Companies House register (checked 13 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 C.S.R Group 1 Ltd do?
C.S.R Group 1 Ltd is registered under Other construction installation (SIC 43290).
How old is C.S.R Group 1 Ltd?
C.S.R Group 1 Ltd was incorporated on 24 July 2025, 1 year ago.
What is the penalty if C.S.R Group 1 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 C.S.R Group 1 Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.