- Companies
- Civil engineering
- Ilkeston
- Whytemac Limited
Whytemac Limited
- Company number
- 10790121
- Incorporated
- 25 May 20179 years trading
- Registered office
- 14 South Street, Ilkeston, DE7 5QE
- Nature of business
- Construction of roads and motorways
Whytemac Limited is a 9-year-old private limited company registered in Ilkeston, company number 10790121, one of 47 civil engineering contractors in Ilkeston. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
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 down £101K (-58.3%) on the year before, to £72K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £655K against £649K owed within a year: 1.0 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £72K | £655K | £649K | 7 | |
| 31 May 2024 | £173K | £2M | £1.9M | 7 | |
| 31 May 2023 | £178K | £919K | £814K | 4 | |
| 31 May 2022 | £133K | £367K | £330K | 5 | |
| 31 May 2021 | £124K | £341K | £328K | 4 | |
| 31 May 2020 | £98K | £227K | £159K | 1 | |
| 31 May 2019 | £61K | £82K | £98K | 1 | |
| 31 May 2018 | £20K | £72K | £66K |
Where Whytemac Limited is registered
The registered office is in Ilkeston (DE7), in the Erewash local authority area, East Midlands. Show DE7 5QE on a map.
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Also registered at this address
2 other companies use the same registered office as Whytemac Limited.
- Blackpool Global LimitedProperty developers
- HBW Joinery Services LtdJoiners and carpenters
What happens if Whytemac 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 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
- 10790121
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 May 2017 (9 years ago)
- Registered office
- 14 South Street, Ilkeston, DE7 5QE
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 24 May 2026
- Previous names
- Charles Whyte Industries Limited (until 10 Sep 2019)
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 Ilkeston
Other active civil engineering contractors registered in Ilkeston.
- 101 Developments Limited2009
- A F Surfacing & Groundworks Ltd2021
- Ace & Toplis Rail Ltd2025
- Ah Timber Products Ltd2024
- Alice Rail Ltd2025
- Applied Water Resources Ltd2024
- BHF Surfacing Ltd2025
- Clashe Civils Ltd2021
All civil engineering contractors in Ilkeston · All trades in Ilkeston · Civil engineering across the UK
Frequently asked questions
When are Whytemac Limited's accounts due?
Whytemac Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Whytemac Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Whytemac Limited still trading?
Whytemac 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 Whytemac Limited do?
Whytemac Limited is registered under Construction of roads and motorways (SIC 42110).
How old is Whytemac Limited?
Whytemac Limited was incorporated on 25 May 2017, 9 years ago.
What is the penalty if Whytemac 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 Whytemac 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.