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- Mackay Contracting Limited
Company profile · Civil engineering
Mackay Contracting Limited
Mackay Contracting Limited is a 2-year-old private limited company registered in Stornoway, company number SC792182, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Where Mackay Contracting Limited is registered
The registered office is in Stornoway (HS1), in the Na h-Eileanan Siar local authority area, Scotland. Show HS1 2JF on a map.
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Also registered at this address
15 other companies use the same registered office as Mackay Contracting Limited.
- A Macdougall Contracting LimitedBuilders
- Alex Murray (Construction) LimitedBuilders
- Angus Mackay & Sons LtdCivil engineering
- Calum Murray LimitedPlumbers and heating engineers
- D J Macaulay Construction LimitedCivil engineering
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- Dmmsy Construction LimitedCivil engineering
- Firm Contracts LimitedJoiners and carpenters
- G D Martin (Builders) LtdProperty developers
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- J Mackenzie Plumbing Services LtdPlumbers and heating engineers
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- Norman Mackenzie Kitchens & Bathrooms LtdInstallers
- Norserv FM LtdCleaning companies
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What happens if Mackay Contracting 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- SC792182
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2023 (2 years ago)
- Registered office
- 26 Lewis Street, Stornoway, Isle Of Lewis, HS1 2JF
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 17 November 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 Stornoway
Other active civil engineering contractors registered in Stornoway.
All civil engineering contractors in Stornoway · All trades in Stornoway · Civil engineering across the UK
Frequently asked questions
When are Mackay Contracting Limited's accounts due?
Mackay Contracting Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Mackay Contracting Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Mackay Contracting Limited still trading?
Mackay Contracting 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 Mackay Contracting Limited do?
Mackay Contracting Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Mackay Contracting Limited?
Mackay Contracting Limited was incorporated on 12 December 2023, 2 years ago.
What is the penalty if Mackay Contracting 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 Mackay Contracting 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.