- Company number
- 15353649
- Incorporated
- 15 Dec 20232 years trading
- Registered office
- 29 Berkeley Close, Whittington, Worcester, WR5 2RF
- Nature of business
- Construction of domestic buildings
McMahon & Sons Ltd is a 2-year-old private limited company registered in Worcester, company number 15353649, one of 113 building contractors in Worcester. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2024
From the balance sheet at 31 December 2024, as filed at Companies House.
Where McMahon & Sons Ltd is registered
The registered office is in Worcester (WR5), in the Wychavon local authority area, West Midlands. Show WR5 2RF on a map.
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What happens if McMahon & Sons Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 15353649
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 December 2023 (2 years ago)
- Registered office
- 29 Berkeley Close, Whittington, Worcester, WR5 2RF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 14 December 2025
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 Worcester
Other active building contractors registered in Worcester.
- Merrell & Bibby Building Contractors Ltd2017
- Misters Bros Limited1993
- MTD Building Contractors Ltd2025
- N S Construction (Midlands) Ltd2024
- Nelson Developments (South West) Limited2016
- Newton & Mason Ltd2023
- Oakland Estates Limited2007
- Oakwood Property Developers (UK) Ltd2006
All building contractors in Worcester · All trades in Worcester · Builders across the UK
Frequently asked questions
When are McMahon & Sons Ltd's accounts due?
McMahon & Sons Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is McMahon & Sons Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is McMahon & Sons Ltd still trading?
McMahon & Sons 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 McMahon & Sons Ltd do?
McMahon & Sons Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is McMahon & Sons Ltd?
McMahon & Sons Ltd was incorporated on 15 December 2023, 2 years ago.
What is the penalty if McMahon & Sons 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 McMahon & Sons 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.