- Companies
- Civil engineering
- Stornoway
- Neil Mackay & Co Ltd
Neil Mackay & Co Ltd
- Company number
- SC278395
- Incorporated
- 13 Jan 200521 years trading
- Registered office
- 1 Unit 1, Parkend Industrial Estate, Stornoway, Isle Of Lewis, HS2 0AN
- Nature of business
- Construction of other civil engineering projects n.e.c.
Neil Mackay & Co Ltd is a 21-year-old private limited company registered in Stornoway, company number SC278395, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £25K (+1.1%) on the year before, to £2.4M.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £1.2M against £101K owed within a year: more than 10 times cover.
- 32 employees on average, down from 36 the year before.
- Balance sheets on record for 10 years, 2016 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | £2.4M | £491K | £1.2M | £101K | 32 |
| 31 Dec 2023 | £2.3M | £435K | £1.3M | £184K | 36 |
| 31 Dec 2022 | £2.3M | £348K | £1.6M | £209K | 40 |
| 31 Dec 2021 | £2.3M | £824K | £2.1M | £222K | 42 |
| 31 Dec 2020 | £1.7M | £541K | £1.5M | £122K | 43 |
| 31 Dec 2019 | £1.6M | £700K | £1.5M | £261K | 45 |
| 31 Dec 2018 | £1.4M | £360K | £1.2M | £152K | 46 |
| 31 Jan 2018 | £1.3M | £485K | £1.1M | £183K | 55 |
| 31 Jan 2017 | £1.1M | £279K | £914K | £159K | 52 |
| 31 Jan 2016 | £982K | £577K | £1.1M | £212K |
Where Neil Mackay & Co Ltd is registered
The registered office is in Stornoway (HS2), in the Na h-Eileanan Siar local authority area, Scotland. Show HS2 0AN on a map.
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What happens if Neil Mackay & Co 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 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
- SC278395
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2005 (21 years ago)
- Registered office
- 1 Unit 1, Parkend Industrial Estate, Stornoway, Isle Of Lewis, HS2 0AN
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 15 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 Neil Mackay & Co Ltd's accounts due?
Neil Mackay & Co Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Neil Mackay & Co 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 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Neil Mackay & Co Ltd still trading?
Neil Mackay & Co 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 Neil Mackay & Co Ltd do?
Neil Mackay & Co Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Neil Mackay & Co Ltd?
Neil Mackay & Co Ltd was incorporated on 13 January 2005, 21 years ago.
What is the penalty if Neil Mackay & Co 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 Neil Mackay & Co 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.