M-Mac Ltd
- Company number
- 17149811
- Incorporated
- 10 Apr 2026
- Registered office
- Havenhurst Pashley Road, Ticehurst, Wadhurst, TN5 7HE
- Nature of business
- Plumbing, heat and air-conditioning installation
M-Mac Ltd is a newly incorporated private limited company registered in Wadhurst, company number 17149811, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 10 January 2028, and its first CT600 is due at HMRC on 9 April 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 M-Mac Ltd is registered
The registered office is in Wadhurst (TN5), in the Rother local authority area, South East. Show TN5 7HE on a map.
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What happens if M-Mac 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 10 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Jan 2028 to 10 Feb 2028 | £150 |
| 1 to 3 months late | 11 Feb 2028 to 10 Apr 2028 | £375 |
| 3 to 6 months late | 11 Apr 2028 to 10 Jul 2028 | £750 |
| More than 6 months late | From 11 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17149811
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 April 2026
- Registered office
- Havenhurst Pashley Road, Ticehurst, Wadhurst, TN5 7HE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Wadhurst
Other active plumbing and heating companies registered in Wadhurst.
- Teklima Limited1983
- J J Cates Plumbing & Heating Services Limited2008
- KG Heating and Plumbing (Kent) Ltd2015
All plumbing and heating companies in Wadhurst · All trades in Wadhurst · Plumbers and heating engineers across the UK
Frequently asked questions
When are M-Mac Ltd's accounts due?
M-Mac Ltd's next accounts are due at Companies House by 10 January 2028 (in 455 days), covering the period to 30 April 2027.
When is M-Mac 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 9 April 2027, due by 9 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is M-Mac Ltd still trading?
M-Mac 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 M-Mac Ltd do?
M-Mac Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is M-Mac Ltd?
M-Mac Ltd was incorporated on 10 April 2026, less than a year ago.
What is the penalty if M-Mac 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 M-Mac 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.