- Companies
- Groundworks and demolition
- Mac Group of Companies Ltd
Mac Group of Companies Ltd
- Company number
- 17073635
- Incorporated
- 6 Mar 2026
- Registered office
- Arena Offices, 100 Berkshire Place, GF33, Winnersh, Berkshire, RG41 5RD
- Nature of business
- Demolition
Mac Group of Companies Ltd is a newly incorporated private limited company registered in Winnersh, company number 17073635, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 6 December 2027, and its first CT600 is due at HMRC on 5 March 2028.
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 Mac Group of Companies Ltd is registered
The registered office is in Winnersh (RG41), in the Wokingham local authority area, South East. Show RG41 5RD on a map.
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Also registered at this address
4 other companies use the same registered office as Mac Group of Companies Ltd.
- GBFH LtdProperty developers
- Glass Box Fabrications LimitedSpecialist contractors
- Glass Box Facades LimitedSpecialist contractors
- Mac Uae LtdGroundworks and demolition
What happens if Mac Group of Companies 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 6 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Dec 2027 to 6 Jan 2028 | £150 |
| 1 to 3 months late | 7 Jan 2028 to 6 Mar 2028 | £375 |
| 3 to 6 months late | 7 Mar 2028 to 6 Jun 2028 | £750 |
| More than 6 months late | From 7 Jun 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
- 17073635
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2026
- Registered office
- Arena Offices, 100 Berkshire Place, GF33, Winnersh, Berkshire, RG41 5RD
- Nature of business
- Demolition (SIC 43110)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies
Other active groundworks and demolition companies.
Frequently asked questions
When are Mac Group of Companies Ltd's accounts due?
Mac Group of Companies Ltd's next accounts are due at Companies House by 6 December 2027 (in 419 days), covering the period to 31 March 2027.
When is Mac Group of Companies 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 5 March 2027, due by 5 March 2028, 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 Mac Group of Companies Ltd still trading?
Mac Group of Companies 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 Mac Group of Companies Ltd do?
Mac Group of Companies Ltd is registered under Demolition (SIC 43110).
How old is Mac Group of Companies Ltd?
Mac Group of Companies Ltd was incorporated on 6 March 2026, less than a year ago.
What is the penalty if Mac Group of Companies 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 Mac Group of Companies 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.