- Companies
- Civil engineering
- Liverpool
- P Mack Limited
P Mack Limited
- Company number
- 16454779
- Incorporated
- 17 May 20251 year trading
- Registered office
- 25 Oakhill Drive, Liverpool, L31 2LE
- Nature of business
- Construction of railways and underground railways
P Mack Limited is a 1-year-old private limited company registered in Liverpool, company number 16454779, one of 284 civil engineering contractors in Liverpool. Its next accounts are due at Companies House on 17 February 2027, and its first CT600 is due at HMRC on 16 May 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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Who runs and owns P Mack Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| P*** M*** | Director | May 2025 |
Person with significant control
Where P Mack Limited is registered
The registered office is in Liverpool (L31), in the Sefton local authority area, North West. Show L31 2LE on a map.
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What happens if P Mack Limited 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 17 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Feb 2027 to 17 Mar 2027 | £150 |
| 1 to 3 months late | 18 Mar 2027 to 17 May 2027 | £375 |
| 3 to 6 months late | 18 May 2027 to 17 Aug 2027 | £750 |
| More than 6 months late | From 18 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16454779
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 2025 (1 year ago)
- Registered office
- 25 Oakhill Drive, Liverpool, L31 2LE
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 22 October 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Liverpool
Other active civil engineering contractors registered in Liverpool.
- PCW Site Solutions Ltd2016
- PDC North West Ltd2025
- Phil Foy Ltd2016
- Phoenix Civils Engineering Ltd2026
- Pile Breaking Systems (UK) Limited2006
- PJ Civils Limited2023
- PJT Paving Limited2010
- Planet Electrical Services Ltd2017
All civil engineering contractors in Liverpool · All trades in Liverpool · Civil engineering across the UK
Frequently asked questions
When are P Mack Limited's accounts due?
P Mack Limited's next accounts are due at Companies House by 17 February 2027 (in 128 days), covering the period to 31 May 2026.
When is P Mack Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 May 2026, due by 16 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is P Mack Limited still trading?
P Mack Limited 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 P Mack Limited do?
P Mack Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is P Mack Limited?
P Mack Limited was incorporated on 17 May 2025, 1 year ago.
Who runs P Mack Limited?
P Mack Limited has 1 active director, the longest-serving appointed in May 2025. Their names and service addresses are on the Companies House register.
Who owns P Mack Limited?
One person or company has significant control of P Mack Limited: an individual (owns 75% or more of the shares).
What is the penalty if P Mack Limited 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 P Mack Limited 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.