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  4. Cubic M3 Limited

Cubic M3 Limited

ActiveTotal exemption (full) accountsCivil engineeringSheffield
Company number
10813289
Incorporated
12 Jun 20179 years trading
Registered office
Unit 6 Acorn Business Park, Woodseats Close, Sheffield, South Yorkshire, S8 0TB
Nature of business
Construction of water projects
Accounts due in
353 days
30 Sep 2027
Net assets
-£60K▲
+17.8% on the year before
Cash at bank
£43K▼
At 31 Dec 2025
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

Cubic M3 Limited is a 9-year-old private limited company registered in Sheffield, company number 10813289, one of 107 civil engineering contractors in Sheffield. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Sep 2027
in 353 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 445 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 354 days
9 months and 1 day after the period end
Confirmation statement
25 Jun 2027
in 256 days
Last made up to 11 Jun 2026

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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 £13K (+17.8%) on the year before, to -£60K.
  • Net assets rose in 2 of 8 year-on-year comparisons on record.
  • Current assets of £58K against £118K owed within a year: 0.5 times cover.
  • 2 employees on average during the year.
  • Balance sheets on record for 9 years, 2017 to 2025.

Net assets by year

Net assets at each year end, 2017 to 2025-£100K-£50K£031 December 2017: net assets -£1,573-£1,573201731 December 2018: net assets -£4,017-£4,017201831 December 2019: net assets -£58K-£58K201931 December 2020: net assets -£96K-£96K202031 December 2021: net assets -£101K-£101K202131 December 2022: net assets -£119K-£119K202231 December 2023: net assets -£119K-£119K202331 December 2024: net assets -£73K-£73K202431 December 2025: net assets -£60K-£60K2025
Net assets at each year end, 2017 to 2025-£100K-£50K£031 December 2017: net assets -£1,573-£1,573'1731 December 2018: net assets -£4,017-£4,017'1831 December 2019: net assets -£58K-£58K'1931 December 2020: net assets -£96K-£96K'2031 December 2021: net assets -£101K-£101K'2131 December 2022: net assets -£119K-£119K'2231 December 2023: net assets -£119K-£119K'2331 December 2024: net assets -£73K-£73K'2431 December 2025: net assets -£60K-£60K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025-£60K£43K£58K£118K2
31 Dec 2024-£73K£187K£201K£274K2
31 Dec 2023-£119K£18K£34K£153K2
31 Dec 2022-£119K£1,170£24K£142K2
31 Dec 2021-£101K£1,353£28K£128K2
31 Dec 2020-£96K£0£28K£124K2
31 Dec 2019-£58K£10K£169K£227K3
31 Dec 2018-£4,017£73K£181K£185K5
31 Dec 2017-£1,573£124K£187K£188K2

Where Cubic M3 Limited is registered

Cubic M3 Limited's registered office on a map of the UK

The registered office is in Sheffield (S8), in the Sheffield local authority area, Yorkshire and The Humber. Show S8 0TB on a map.

Other trade companies in S8

Also registered at this address

6 other companies use the same registered office as Cubic M3 Limited.

What happens if Cubic M3 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 2028another 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
10813289
Status
Active
Company type
Private limited company
Incorporated
12 June 2017 (9 years ago)
Registered office
Unit 6 Acorn Business Park, Woodseats Close, Sheffield, South Yorkshire, S8 0TB
Nature of business
Construction of water projects (SIC 42910)
Year end
31 December (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 December 2025
Last confirmation statement
11 June 2026

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 Sheffield

Other active civil engineering contractors registered in Sheffield.

All civil engineering contractors in Sheffield · All trades in Sheffield · Civil engineering across the UK

Frequently asked questions

When are Cubic M3 Limited's accounts due?

Cubic M3 Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.

When is Cubic M3 Limited's CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is Cubic M3 Limited still trading?

Cubic M3 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 Cubic M3 Limited do?

Cubic M3 Limited is registered under Construction of water projects (SIC 42910).

How old is Cubic M3 Limited?

Cubic M3 Limited was incorporated on 12 June 2017, 9 years ago.

What is the penalty if Cubic M3 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 Cubic M3 Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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